Objective
The CFII candidate will demonstrate the ability to effectively teach comprehensive IFR cross-country flight planning for helicopters, enabling instrument students to file compliant IFR flight plans, compute fuel requirements, interpret IFR charts and procedures, evaluate NOTAM information, assess RAIM availability, recognize airframe icing hazards, and apply helicopter-specific planning considerations. The candidate will use effective teaching methodology to develop student understanding of regulatory requirements, chart interpretation, fuel planning, and risk assessment for single-pilot helicopter IFR operations. Performance meets the standards of PTS task CFII.III.B.
Content
Introduction and Motivation
Begin by establishing that cross-country IFR flight planning in helicopters differs fundamentally from fixed-wing planning due to fuel capacity limitations, lack of weather radar in most training helicopters, inability to climb above most weather, and single-pilot workload considerations. Effective IFR planning reduces cockpit workload, ensures legal compliance, and provides contingency options when weather or mechanical issues develop. Unlike fixed-wing pilots who can often climb above icing layers, helicopter pilots must plan routes that avoid forecast icing conditions entirely.
Regulatory Requirements for Instrument Flight Within Various Airspace Types
14 CFR 91.173 — IFR Flight Plan Required Explain that no person may operate an aircraft in controlled airspace under IFR unless they have filed an IFR flight plan and received an appropriate ATC clearance. Emphasize this applies regardless of VMC conditions—filing IFR is about airspace access and separation services, not weather.
14 CFR 91.177 — Minimum Altitudes for IFR Operations Teach the hierarchy of altitude requirements:
- Within designated mountainous areas: 2,000 feet above the highest obstacle within 4 NM of course
- In non-mountainous areas: 1,000 feet above the highest obstacle within 4 NM of course
- When ATC assigns altitudes below these minimums, the pilot must request higher altitudes if unable to maintain obstacle clearance
Use the analogy: “Think of these as your safety cushion. In a helicopter without terrain awareness, you’re planning from the chart—if the chart shows a 3,500-foot tower, your minimum altitude in mountainous terrain is 5,500 feet.”
Demonstrate how to identify mountainous areas on sectional charts (tinted brown relief) and how to cross-reference with IFR charts showing MEAs, MOCAs, and OROCA values.
14 CFR 91.185 — Two-Way Radio Communication Failure Cover the AVEF pneumonic (Assigned, Vectored, Expected, Filed) for altitude selection and route selection during communication failure. Emphasize helicopter-specific considerations: most training helicopters lack the range to “continue to the filed destination”—discuss realistic scenarios where a precautionary landing becomes necessary before fuel exhaustion.
Class A Airspace (FL180 and above) Explain that helicopters rarely operate in Class A airspace due to performance limitations. If teaching advanced students in turbine helicopters capable of these altitudes, review the requirement for IFR clearance and altitude encoding transponder.
Class B Airspace Teach that IFR operations require an ATC clearance and two-way radio communication. Demonstrate how to identify Class B airspace on IFR charts (solid blue lines on IFR Enroute Low Altitude charts) and review common routing for helicopter IFR flights—many Class B airspaces have published helicopter routes at lower altitudes than fixed-wing traffic.
Class C Airspace Review requirements for two-way radio communication and transponder with altitude encoding. Demonstrate chart identification (solid magenta lines on IFR charts) and discuss typical ATC handling of helicopter IFR traffic—often assigned at lower altitudes beneath fixed-wing traffic.
Class D Airspace Explain that IFR operations require an ATC clearance and two-way radio communication. Demonstrate transition planning when departing or arriving at Class D airports—students must plan for clearance delivery or ground frequencies that may not be listed in helicopter-specific databases.
Class E Airspace Review that Class E begins at 700 AGL (magenta vignette areas), 1,200 AGL (blue vignette areas), or 14,500 MSL (outside designated areas). IFR flight plans are required but no specific communication requirements exist beyond position reporting in non-radar environments. Emphasize that most helicopter IFR cross-countries occur entirely within Class E airspace.
Class G Airspace Teach that IFR flight in Class G requires meeting weather minimums per 14 CFR 91.155 but no IFR flight plan is required for the airspace itself. However, entering controlled airspace requires a flight plan and clearance. Discuss the practical reality: students will file IFR for the entire route to ensure continuous ATC separation services.
Computation of Estimated Time En Route and Total Fuel Requirement
Fuel Planning Regulatory Requirements Begin with 14 CFR 91.167 — IFR fuel requirements for helicopters:
- Fly to the first airport of intended landing
- Fly from that airport to the alternate airport (if required)
- Fly after that for 30 minutes at normal cruising speed
Emphasize this is a minimum—professional practice adds additional reserve based on weather, night operations, unfamiliar territory, and single-pilot workload.
Alternate Airport Requirements (14 CFR 91.169) Teach the “1-2-3 rule”: An alternate is required unless, for at least one hour before and one hour after the ETA, the destination weather is forecast to be at least 2,000-foot ceiling and 3 SM visibility.
Demonstrate alternate selection criteria: The alternate must have an available instrument approach, and weather forecasts must indicate at or above the published minimums at the ETA. For precision approaches, add 600-foot ceiling and 2 SM visibility; for non-precision approaches, add 800-foot ceiling and 2 SM visibility.
Fuel Consumption Calculation Method Use a structured teaching approach:
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Determine cruise speed and fuel consumption rate from the helicopter POH/RFM. Example: Robinson R44 at 90 KIAS burns approximately 15 GPH.
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Calculate time en route by measuring route distance and dividing by groundspeed (accounting for forecast winds). Demonstrate how to extract winds aloft from weather briefing and compute headwind/tailwind components.
Example calculation on whiteboard:
- Route distance: 180 NM
- TAS: 90 knots
- Forecast wind: 270/15
- Course: 240°
- Headwind component: 13 knots
- Groundspeed: 77 knots
- Time en route: 180 ÷ 77 = 2.3 hours (2 hours 20 minutes)
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Calculate fuel to destination: Time × fuel flow = 2.3 × 15 = 34.5 gallons
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Calculate fuel to alternate: Measure alternate distance, repeat calculation
- Alternate 40 NM distant
- Time: 0.5 hours
- Fuel: 0.5 × 15 = 7.5 gallons
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Add 30-minute reserve: 0.5 × 15 = 7.5 gallons
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Total fuel required: 34.5 + 7.5 + 7.5 = 49.5 gallons
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Add personal minimums: Suggest 10% additional for weather deviations = 5 gallons
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Final fuel plan: 54.5 gallons required, R44 capacity is 30 gallons usable—this flight requires a fuel stop
Use this example to demonstrate a critical helicopter IFR reality: “Most piston training helicopters have 2–3 hour endurance. IFR reserve requirements often necessitate fuel stops on routes that would be simple single-leg flights in airplanes. This isn’t a limitation—it’s a constraint you plan around.”
Fuel Stop Planning Teach students to identify airports with instrument approaches along the route, verify fuel availability (not all airports have helicopter-accessible fuel), and file the flight plan in segments if ATC routing might change the fuel calculations significantly.
Selection and Interpretation of Current and Applicable En Route Charts
IFR Enroute Low Altitude Charts Demonstrate chart selection based on route of flight. Explain that “Low Altitude” charts cover altitudes from surface to 18,000 feet MSL and are the primary charts for helicopter IFR.
Chart Components Critical for Helicopters:
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MEA (Minimum En Route Altitude): The lowest published altitude meeting obstacle clearance and navaid reception. Teach students to highlight MEAs along the planned route and verify helicopter performance capability—an MEA of 14,000 feet is unsuitable for most piston helicopters.
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MOCA (Minimum Obstruction Clearance Altitude): Provides obstacle clearance but only guarantees navaid reception within 22 NM of the VOR. Explain that helicopters often operate at MOCA when MEA is performance-prohibitive, accepting the navaid reception limitation.
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OROCA (Off-Route Obstruction Clearance Altitude): Provides 1,000-foot clearance (2,000 in mountainous terrain) in each grid but does not guarantee navaid reception. Demonstrate how to use OROCA for emergency descent planning or when operating in areas without established airways.
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Airway Identification: Victor airways (VOR-based) vs. T-routes (RNAV). Show students how to identify airways by name (V12, T205) and emphasize that RNAV routes require IFR-certified GPS.
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Changeover Points (COPs): The point where navigation transitions from one navaid to another. Demonstrate identification on chart (small flag symbol) and explain operational use—tune the next VOR before this point to maintain continuous guidance.
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Distances: Teach students to use the distance indicators between navaids to calculate time and fuel. Emphasize that chart distances are in nautical miles, matching aviation speed measurements.
Chart Interpretation Exercise: Present a sample route (e.g., “KBFI to KPDX via V165”) and demonstrate:
- Identifying each airway segment
- Recording MEAs for each segment
- Noting frequency changeover points
- Identifying approach control boundaries
- Calculating total route distance
- Checking for special use airspace (MOAs, Restricted areas)
RNAV Routes and Waypoint Interpretation Explain that RNAV routes (T-routes) are defined by GPS waypoints rather than VORs. Demonstrate how to identify waypoints on charts (five-letter identifiers) and cross-reference with GPS databases.
Critical teaching point: “Your GPS database must be current. An expired database is not legal for IFR flight—period. Check the effective dates before you file.”
Departure Procedures (DPs) and Standard Terminal Arrival Routes (STARs)
Obstacle Departure Procedures (ODPs) Explain that ODPs are non-regulatory procedures designed to provide obstacle clearance for aircraft departing under IFR. They’re listed in text format in the TPP (Terminal Procedures Publication) and are assumed unless ATC assigns a different departure.
Demonstrate how to find ODPs:
- Open the TPP for the departure airport
- Check the front section for “IFR Takeoff Minimums and Departure Procedures”
- Locate the airport alphabetically
- Note any non-standard minimums or published procedures
Helicopter-specific consideration: Many ODPs include the note “Helicopters: NA” for certain runways where the procedure requires climb gradients exceeding helicopter capability (typically >500 feet per NM). Teach students to identify these restrictions and plan alternate runways or VFR departure to a safe altitude before accepting the IFR clearance.
Standard Instrument Departures (SIDs) Explain that SIDs are ATC-assigned procedures that combine obstacle clearance with traffic flow management. Unlike ODPs, SIDs must be specifically assigned by ATC.
Demonstrate SID interpretation using a published example:
- Identify routing (text and graphic)
- Note altitude restrictions (“maintain 3,000,” “cross FIXXX at or above 5,000”)
- Identify lost communication procedures
- Check for special equipment requirements (DME, RNAV)
Critical teaching point: “If you cannot comply with a SID due to performance limitations, tell ATC during clearance delivery. ‘Unable SID, request vectors’ is a professional, acceptable response. Never accept a clearance you cannot fly.”
Standard Terminal Arrival Routes (STARs) Explain that STARs simplify clearances for arrivals into busy terminal areas. They include routing, altitude restrictions, and often speed restrictions.
Demonstrate STAR interpretation:
- Identify the arrival gate (where the STAR begins)
- Note altitude and speed restrictions (“cross ABCDE at 10,000 and 250 knots”)
- Identify transition routes based on direction of arrival
- Check for special equipment requirements
Helicopter consideration: Many STARs include speed restrictions (250 knots, 210 knots) that are irrelevant to helicopters. However, altitude restrictions are critical—teach students to verify they can meet crossing restrictions with helicopter climb/descent performance.
Practical Application Demonstrate complete planning:
- Identify departure airport ODP
- Identify destination airport STAR
- Verify performance capability for all altitude restrictions
- Highlight procedures on charts for cockpit reference
- Discuss phraseology to request amendments if needed
Standard Instrument Approach Procedures (IAPs)
Approach Chart Components Use a sample approach chart (e.g., ILS or RNAV approach to a familiar airport) and systematically teach each component:
- Heading and airport identification: Airport name, approach type, runway
- Plan view: Shows the approach course, final approach fix, missed approach point, obstacles, and terrain
- Profile view: Depicts the vertical profile including step-down fixes, glide slope intercept altitude, and decision altitude/minimum descent altitude
- Minimums section: DA/DH or MDA with visibility requirements, separated by aircraft category
- Missed approach procedure: Text and graphic depiction of the procedure if the approach is not successful
- Notes section: Critical information including NOTAM requirements, equipment requirements, inoperative components, helicopter-specific notes
Helicopter-Specific Approach Considerations
Teach aircraft approach category determination: Helicopters use Category A minimums (approach speed less than 91 knots) unless operating at higher speeds. Demonstrate how to find Category A minimums on the chart—often the lowest minimums available.
Point-in-space (PinS) approaches: Explain that many helicopter-only approaches terminate at a fix with only circling minimums, designed for helicopters to proceed VFR to helipads or non-towered locations. Demonstrate identification: approach title includes “COPTER” and notes indicate “Proceed VFR from [FIXNAME] or on heading XXX.”
Approach Plate Interpretation Exercise Walk through a complete approach:
- “What’s the approach frequency? 109.9”
- “What altitude should we maintain until FIXXX? 3,000”
- “What’s the MDA for Category A? 580 feet”
- “What visibility is required? 1 statute mile”
- “If we go missed approach, what’s our initial action? Climb to 1,500, then climbing right turn to 3,000 direct ABC VOR”
Emphasize that approach chart interpretation is a skill built through repetition. Students should brief every approach thoroughly before flying it.
NOTAM Procurement and Interpretation
NOTAM Types and Sources Explain the NOTAM categories:
- FDC NOTAMs: Regulatory changes, approach procedure amendments, temporary flight restrictions
- Domestic NOTAMs (NOTAM-D): Runway closures, navaid outages, lighting issues, airport status
- International NOTAMs: For operations outside the U.S.
- Military NOTAMs: Generally not applicable to civilian helicopter IFR operations
Sources for NOTAM Information Demonstrate access methods:
- 1800wxbrief.com: FAA’s official weather briefing source, includes NOTAM search by airport or route
- ForeFlight or similar EFB: Integrated NOTAM display with route briefing
- FSS Phone Briefing: 1-800-WX-BRIEF for full briefing including NOTAMs
- NOTAM Search (notams.aim.faa.gov): Direct NOTAM database search
NOTAM Interpretation Critical to IFR Flight Planning
Demonstrate real-world NOTAM interpretation:
Example NOTAM: “BOS ILS RWY 27 LOC U/S 2401151300-2401152300” Translation: “At Boston, the ILS Runway 27 localizer is out of service from 1:00 PM to 11:00 PM on January 15, 2024.” Planning impact: Cannot file ILS 27 as the approach during these times; must plan alternate approach or different runway.
Example NOTAM: “PDX VOR/DME OUT OF SERVICE 2401201000-2401201600” Translation: “Portland VOR/DME is out of service from 10:00 AM to 4:00 PM on January 20, 2024.” Planning impact: Cannot use PDX VOR for navigation or approaches during this period; must have GPS or file route avoiding PDX VOR.
Example NOTAM: “SEA DEPARTURE PROCEDURE ALPHA NA” Translation: “At Seattle, Departure Procedure Alpha is not available.” Planning impact: Cannot accept clearance using this procedure; request alternative.
FDC NOTAMs and Approach Amendments Teach students that FDC NOTAMs often amend approach procedures—increased minimums, procedure turns NA, equipment requirements changed. These are critical for flight planning because they change published information.
Example FDC NOTAM: “FDC 3/1234 ABC ILS RWY 18 AMDT 5A… DA 450/24 INCREASED TO 650/24” Translation: Decision altitude increased from 450 to 650 feet due to obstacle or navaid issue. Planning impact: May make the approach unusable in marginal weather; must plan alternate.
NOTAM Review for Cross-Country Planning Demonstrate systematic NOTAM review:
- Check NOTAMs for departure airport (runways, approaches, lighting)
- Check NOTAMs for destination airport (same items plus FBO services if fuel stop needed)
- Check NOTAMs for alternate airport
- Check NOTAMs for en route navaids (VORs, NDBs if used for navigation)
- Check FDC NOTAMs for TFRs along route of flight
- Save NOTAM briefing or print for cockpit reference
Critical teaching point: “A NOTAM making your destination approach unavailable isn’t discovered in flight—it’s discovered during planning. This is why we check NOTAMs before we file, not after.”
IFR Flight Plan Completion and Filing
Flight Plan Form (FAA Form 7233-1) Components
Demonstrate block-by-block completion:
Block 1 - Type of Flight Plan: Mark “IFR”
Block 2 - Aircraft Identification: N-number exactly as it appears on registration
Block 3 - Aircraft Type/Special Equipment:
- Aircraft type: Use ICAO identifier (e.g., “R44” for Robinson R44, “EC30” for Eurocopter AS350)
- Special equipment suffix: Critical for ATC routing
- /A = DME, no transponder
- /U = Transponder, no DME
- /D = DME and transponder
- /G = GPS/RNAV, transponder (most common for IFR helicopters)
- /I = GPS/RNAV, DME, transponder
Explain that the equipment suffix tells ATC what routing you can accept. Filing “/G” when the GPS database is expired is not just wrong—it’s a violation.
Block 4 - True Airspeed: Planned cruise TAS in knots (e.g., “090”)
Block 5 - Departure Point: ICAO identifier if available, or airport name and state
Block 6 - Departure Time: Proposed time in UTC (Zulu time)
Block 7 - Cruising Altitude: Explain IFR altitude selection rules:
- VFR-on-top not commonly used in helicopters due to performance limitations
- 0°–179° magnetic course: odd thousands (3,000, 5,000, 7,000, etc.)
- 180°–359° magnetic course: even thousands (4,000, 6,000, 8,000, etc.)
Demonstrate how to select the lowest IFR altitude that:
- Meets MEA requirements for the route
- Avoids forecast icing altitudes
- Stays within helicopter performance capabilities
- Provides fuel efficiency (lower altitudes often better for helicopters)
Block 8 - Route of Flight: Teach proper format: “Departure point, route, destination”
Examples:
- “KBFI V287 SEA V165 PDX KPDX” (VOR route)
- “KBFI DIRECT” (GPS direct if distance and equipment permit)
- “KBFI PUGIT V165 KRATR KPDX” (RNAV waypoints and airways)
Explain that the route must:
- Use established airways or direct routing if within GPS capability
- Include all fixes where route changes
- Be within fuel range including reserves
- Be flyable at selected altitude (check MEAs)
Block 9 - Destination: ICAO identifier
Block 10 - Estimated Time En Route: Hours and minutes (e.g., “0215” for 2 hours 15 minutes)
Block 11 - Remarks: Teach appropriate use:
- Request specific handling: “REQUEST LOWER ALTITUDE IF AVAILABLE”
- Note equipment issues: “DME INOP”
- Special requests: “STUDENT PILOT” (though not required, some instructors recommend for extra ATC patience)
Block 12 - Fuel On Board: Total fuel in hours and minutes (e.g., “0300” for 3 hours) Explain this is total fuel, not reserve. ATC uses this for search and rescue timing if aircraft becomes overdue.
Block 13 - Alternate Airport: ICAO identifier of selected alternate (if required by 14 CFR 91.169)
Block 14 - Pilot Information: Name, address, phone number. Teach students to use current contact information for FSS callback if there are flight plan issues.
Block 15 - Number Aboard: Total persons on board
Block 16 - Color of Aircraft: As simple or detailed as desired (e.g., “WHITE/BLUE”)
Block 17 - Contact Information: Usually same as Block 14
Filing Methods Demonstrate each filing method:
- 1800wxbrief.com: Walk through online filing, show how pre-filled aircraft profiles save time
- ForeFlight or EFB: Demonstrate integrated filing from flight planning page
- FSS by Phone: Explain that calling 1-800-WX-BRIEF allows verbal filing, useful if internet unavailable
- Radio Filing: Explain that IFR flight plans can be filed by radio through FSS frequencies (122.2, etc.) but this is less common and ties up frequency
Verification of Filed Flight Plan Teach students to verify ATC received the flight plan by requesting clearance. If ATC has no record, the flight plan wasn’t properly filed or was purged (happens if departure time passes without activation).
Flight Plan Amendments Explain how to amend a filed flight plan:
- Before departure: Call FSS or re-file online
- After departure: Request amendments through ATC (“Request change destination to KABC”)
Void Time Clearances When departing a non-towered field, explain that clearances include a void time: “Clearance void if not off by [TIME], time now [TIME].” Teach students they must depart before void time or the clearance expires. If unable to depart, they must contact ATC/FSS to cancel and refile. Taking off after void time is a violation—ATC has released the airspace.
GPS and RAIM Capability
GPS Basics for IFR Explain that GPS (Global Positioning System) provides position information via satellite signals. IFR-certified GPS (TSO-C129, TSO-C145, TSO-C146) meets accuracy, integrity, and availability standards for instrument flight.
RAIM (Receiver Autonomous Integrity Monitoring) Teach that RAIM is the GPS receiver’s ability to detect satellite signal errors. IFR GPS requires RAIM availability at the planned location and time. Without RAIM, the GPS cannot provide the integrity monitoring required for IFR flight.
Analogy: “RAIM is like a co-pilot checking the instruments. The GPS does the navigation, but RAIM constantly verifies that the GPS signals are accurate. If RAIM fails, you’ve lost your integrity check—the GPS might be working, but you can’t trust it for IFR.”
RAIM Prediction and Checking Demonstrate how to check RAIM availability:
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Built-in GPS RAIM Prediction: Many panel-mount GPS units (Garmin 430/530, GTN series) have RAIM prediction functions. Demonstrate menu navigation to check RAIM for planned route and time.
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Online RAIM Prediction Tools:
- RAIM Service Availability Prediction Tool (SAPT) at www.raimprediction.net
- ForeFlight RAIM prediction in flight planning
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NOTAM Checking: GPS satellite outages are published in NOTAMs. Check for GPS NOTAMs affecting planned route/time.
Demonstration of RAIM Check: “Let’s check RAIM for a flight from Seattle to Portland tomorrow at 1400 Zulu. We enter the route waypoints and times into the RAIM prediction tool… result shows RAIM available with 6 satellites predicted. This is good—we need at least 5 satellites for RAIM in most GPS receivers.”
RAIM Failure Procedures Teach that if RAIM is predicted to be unavailable:
- Use alternate navigation (VOR/DME if available)
- Delay departure until RAIM availability improves
- File a route using VOR-based airways instead of GPS direct
If RAIM fails in flight:
- Immediately transition to alternate navigation
- Notify ATC
- Do not continue GPS-based approaches without RAIM
GPS Database Currency Emphasize 14 CFR 91.175 requirements: The GPS database must be current for IFR flight. The effective dates are shown on the GPS startup page.
Critical teaching point: “Expired database equals VFR-only GPS. You can use it for situational awareness, but you cannot legally file or fly IFR routes or approaches based on GPS with an expired database. Check the date before every IFR flight.”
GPS Limitations in Helicopters Explain helicopter-specific GPS considerations:
- Most GPS-based approaches are RNAV (GPS) approaches
- WAAS (Wide Area Augmentation System) improves GPS accuracy and may allow LPV (localizer performance with vertical guidance) approaches—similar to ILS
- Not all helicopters have WAAS—check avionics capability
- GPS antenna location in helicopters can cause signal blockage during certain maneuvers (uncommon but possible)
Airframe Icing Recognition and Effects
Introduction to Airframe Icing Establish that airframe icing is one of the most severe hazards to helicopter IFR flight. Unlike fixed-wing aircraft, helicopters:
- Cannot climb above icing layers in most cases
- Have rotor systems highly susceptible to asymmetric ice buildup causing vibration and control issues
- Often lack anti-ice or de-ice equipment
- Experience severe performance degradation with even light ice accumulation
Conditions for Ice Formation Teach the two requirements for structural ice:
- Visible moisture (clouds, rain, freezing rain, snow)
- Temperatures at or below freezing (0°C or 32°F)
Explain the temperature ranges:
- 0°C to -10°C: Most common icing range, produces clear ice (most dangerous)
- -10°C to -20°C: Mixed ice formation
- Below -20°C: Less likely (but still possible), typically rime ice
Types of Icing
Clear Ice (Glaze Ice):
- Forms in large droplets (freezing rain or large cloud droplets)
- Spreads and flows before freezing, creating smooth, heavy ice
- Most dangerous type—adheres strongly, adds significant weight
- Difficult to remove, even with de-ice systems
- Common in temperatures 0°C to -10°C
Rime Ice:
- Forms in small droplets (typical clouds)
- Freezes immediately on contact, creating rough, opaque ice
- Lighter than clear ice but disrupts airflow significantly
- Easier to remove with de-ice systems
- Common in temperatures -10°C to -20°C
Mixed Ice:
- Combination of clear and rime
- Unpredictable formation
- Shares hazards of both types
Recognition of Wing and Rotor Contamination
Teach visual indicators:
- Leading edges of rotor blades: Look for ice buildup on the leading edge, visible during preflight or (if equipped) through inspection windows in flight
- Windscreen ice: Ice forming on the windscreen indicates icing conditions—assume rotor system is also accumulating ice
- Landing skids/gear: Ice forming on skids or wheel pants
- Antennas and probes: Ice on external protrusions
- Temperature probes: Ice formation on outside air temperature probe (and OAT reading dropping to near 0°C)
Teach tactile indicators:
- Control heaviness or unusual vibration (asymmetric ice on rotor system)
- Increased power required to maintain altitude (ice adding weight and disrupting rotor efficiency)
- Decreased airspeed for same power setting
Critical teaching point: “The first sign of ice is your cue to exit icing conditions immediately. In a helicopter, you don’t have time to evaluate severity—you get out. Request lower altitude, request vectors out of clouds, declare an emergency if needed. Icing in helicopters is a get-out-now situation.”
Adverse Effects of Airframe Icing and Corrective Actions
Pretakeoff Phase
Effects:
- Ice on rotor blades prevents proper lift generation
- Asymmetric ice causes vibration during startup and hover
- Ice adds weight, reducing hover performance
- Ice can shed during takeoff, causing control issues or tail rotor damage
Recognition: Teach thorough preflight inspection in freezing conditions:
- Visually inspect entire rotor system, leading and trailing edges
- Check for ice on fuselage, skids, antennas
- Feel rotor blade surfaces for ice that might not be visible
- Check windscreen, pitot tube, static ports
Corrective Actions:
- Remove all ice before flight (hangar, de-ice fluid, warm water if temperature permits, physical removal)
- If ice cannot be completely removed, delay flight until conditions improve
- Never attempt takeoff with contaminated rotor blades
Takeoff Phase
Effects:
- Reduced climb performance due to added weight and disrupted airflow
- Vibration from asymmetric ice
- Possible loss of tail rotor effectiveness if ice sheds and strikes tail rotor
- Reduced visibility if windscreen icing occurs
Recognition:
- Difficulty achieving normal climb rate
- Unusual vibration
- Higher-than-normal power required
- Ice observed on windscreen or skids
Corrective Actions:
- Abort takeoff if ground effect hover reveals ice contamination (vibration, unusual handling)
- If icing encountered immediately after takeoff, land as soon as practical
- Do not climb into known icing conditions
- Return to field if performance degradation observed
Cruise Phase
Effects:
- Progressive weight increase reducing performance
- Rotor efficiency loss requiring higher power settings
- Asymmetric ice loading causing vibration and control difficulties
- Possible control restriction if ice forms on control surfaces or linkages
- Reduced range due to increased power requirements
- Potential engine intake ice affecting engine performance
Recognition:
- Gradual or sudden increase in vibration
- Altitude difficult to maintain without power increase
- Airspeed decrease for constant power
- Ice observed on windscreen, antennas, or (if visible) rotor system
- OAT gauge reading at or near 0°C with visible moisture
Corrective Actions:
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Immediately exit icing conditions: This is the primary action
- Request lower altitude (descend below freezing level if possible)
- Request vectors out of visible moisture
- Consider 180-degree turn if ice accumulation is rapid
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Notify ATC: Report icing encounter, request priority handling
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Adjust power as needed: Monitor engine instruments, be prepared for increased power requirements
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Prepare for precautionary landing: If icing is severe and cannot exit conditions, identify nearest airport and plan precautionary landing
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Do not use autopilot: Ice accumulation can mask control force feedback critical for ice recognition
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Monitor airspeed carefully: Increased power to maintain altitude can lead to overspeed if not monitored
Landing Phase
Effects:
- Increased approach speed required due to weight and rotor efficiency loss
- Reduced controllability during final approach
- Possible ice shedding during descent causing control transients
- Hard landing due to reduced rotor efficiency in ground effect
- Vibration during approach making precise control difficult
Recognition:
- Higher-than-normal power required in approach
- Unusual vibration
- Aircraft feeling “heavy” or sluggish in control response
- Ice visible on skids or windscreen
Corrective Actions:
- Plan for increased approach speed: Add margin to normal approach speed
- Request priority handling: Inform ATC of icing encounter and request direct routing to nearest suitable airport
- Expect higher power requirements: Be prepared for power-on landing rather than normal power reduction in flare
- Increase approach angle if possible: Minimize time in icing conditions during approach
- Be prepared for go-around: If landing does not feel stable, go around and reassess
- After landing, do not shut down in freezing rain: Ice can freeze controls in position; seek heated hangar if available
Manufacturer-Specific Icing Information
POH/RFM Limitations Section Demonstrate how to locate icing information in the helicopter’s Pilot Operating Handbook or Rotorcraft Flight Manual:
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Limitations Section: Look for “Flight into known icing conditions prohibited” or similar language. Teach that this prohibition is regulatory—14 CFR 91.9 requires compliance with operating limitations.
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Weather Minimums: Some POHs specify minimum temperatures for flight (e.g., “Do not operate below -20°C ambient temperature”).
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Performance Charts: Demonstrate how to check whether performance data accounts for ice contamination (most do not—published performance assumes clean rotor).
Example for Robinson R44: “The R44 POH states ‘Flight into known or forecast icing conditions is prohibited.’ This means if icing is forecast, you cannot legally depart. If you encounter icing inadvertently, you must exit immediately.”
Example for Airbus H125 (AS350): “The H125 has optional inlet barrier filters and particle separator. The POH includes notes on operating with these systems in icing conditions, but flight into known icing is still prohibited unless the aircraft is equipped with and certified for icing (which most are not).”
Anti-Ice and De-Ice Equipment (if installed)
If teaching in a helicopter equipped with anti-ice or de-ice systems (rare in training helicopters, more common in turbine helicopters):
- Pitot heat: Required for IFR, prevents pitot tube icing affecting airspeed indication
- Windscreen heat or bleed air: Prevents windscreen icing for visibility
- Engine inlet anti-ice: Prevents ice ingestion into engine
- Rotor blade de-ice boots (very rare): Pneumatic boots that inflate to shed ice
Demonstrate system operation from POH procedures, emphasizing when to activate (before entering icing conditions for anti-ice, immediately upon ice detection for de-ice).
Manufacturer Service Bulletins and Safety Notices Explain that manufacturers issue service bulletins regarding icing hazards. Example topics:
- Reports of icing encounters and outcomes
- Recommendations for avoiding icing
- Inspection procedures after icing encounters
Teach students to review the manufacturer’s website and bulletin archives for icing-related information specific to their aircraft.
Practical Application: Icing Decision Making
Present scenario-based training:
Scenario 1: Weather briefing shows AIRMET Zulu (icing) along your route from surface to 8,000 feet. Freezing level is 5,000 feet. Your cruise altitude is planned at 6,000 feet. What is your decision?
Expected student response: Cancel or delay the flight. Flight into known icing is prohibited for this aircraft. Filing IFR into forecast icing is illegal and unsafe.
Scenario 2: You’re in cruise at 4,000 feet, temperature is +2°C, and you enter visible moisture (clouds). What are your immediate actions?
Expected student response: Monitor for ice indications (OAT, windscreen, vibration). If temperature approaches 0°C or ice is observed, immediately request lower altitude or vectors out of clouds. Do not continue in these conditions.
Scenario 3: At 3,000 feet in IMC, you notice ice forming on the windscreen. OAT shows -1°C. What do you do?
Expected student response:
- Immediately inform ATC: “Center, Helicopter 123 is picking up ice, request immediate descent to warmer air.”
- Descend if approved (lower altitude usually warmer)
- If unable to descend, request vectors to VFR conditions
- Monitor aircraft performance closely
- Plan precautionary landing at nearest airport
- Declare emergency if conditions worsen or control becomes difficult
Teaching Methodology and Knowledge Assessment
Effective Teaching Techniques for Cross-Country Planning
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Use a Real-World Route: Select a route the student is likely to fly, making the planning relevant and practical.
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Work Through Complete Planning: Don’t teach components in isolation—demonstrate the entire planning process from weather briefing through flight plan filing.
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Incorporate Decision-Making: Pose “what if” questions throughout:
- “What if the destination weather drops below minimums?”
- “What if this VOR is NOTAMed out of service?”
- “What if you encounter ice?”
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Emphasize Helicopter-Specific Limitations: Constantly reinforce fuel limitations, performance constraints, and icing prohibitions.
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Use Visual Aids: Display charts, approach plates, and NOTAM examples using projector or large printouts.
Sample Knowledge Assessment Questions
After instruction, evaluate student understanding:
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“Your destination forecast shows 1,500 overcast and 2 miles visibility from 1 hour before to 1 hour after your ETA. Do you need an alternate?”
- Answer: No. The 1-2-3 rule is met (2,000-foot ceiling and 3 SM required). This forecast exceeds those minimums.
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“You’re planning a route that’s 220 NM. Your helicopter cruises at 85 knots and burns 12 GPH. Forecast winds are 180 at 20 knots, and your course is 360. Calculate fuel required with alternate and reserve.”
- Answer: Headwind 20 knots, GS 65 knots, time 3.4 hours, fuel to destination 41 gallons. Add alternate (example 20 NM, 0.3 hours, 4 gallons) and 30-minute reserve (6 gallons) = 51 gallons required. This exceeds typical training helicopter capacity—requires fuel stop.
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“What’s the minimum altitude for IFR flight over mountainous terrain when the highest obstacle within 4 NM is 6,500 feet?”
- Answer: 8,500 feet (2,000 feet above the obstacle in designated mountainous areas per 14 CFR 91.177).
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“You’re flying GPS direct and RAIM fails. What are your immediate actions?”
- Answer: Transition to alternate navigation (VOR/DME), notify ATC, do not continue GPS approaches.
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“At what point during flight planning do you check NOTAMs—before filing or after filing?”
- Answer: Before filing. NOTAMs can affect routing, approach availability, and alternate selection.
Common Student Errors and Corrections
Error: Student files IFR flight plan without checking aircraft equipment (e.g., files /G with expired GPS database). Correction: Emphasize preflight equipment check. Create a checklist: GPS database current? Pitot heat operational? Required instruments checked?
Error: Student selects an alternate that doesn’t meet weather minimums. Correction: Reinforce the alternate weather requirements (precision approach: 600-2, non-precision: 800-2). Walk through alternate selection step-by-step using forecast weather.
Error: Student calculates fuel but forgets the 30-minute reserve or alternate fuel. Correction: Use the structured fuel calculation method (destination + alternate + reserve + personal minimums). Make this a standard checklist item.
Error: Student assumes helicopter can fly any published route without checking MEAs and performance. Correction: Demonstrate route feasibility check: highlight all MEAs, compare to helicopter service ceiling, reject routes with MEAs above performance capability.
Error: Student doesn’t recognize that forecast icing makes the flight illegal. Correction: Emphasize the POH limitation “Flight into known icing prohibited.” Known = forecast. Review AIRMET Zulu interpretation and freezing level forecasts.
Schedule
| Time | Activity | Details |
|---|---|---|
| 0:00-0:10 | Introduction and Objectives | Review lesson objectives, assess student’s prior IFR planning experience, establish relevance of comprehensive planning to safety |
| 0:10-0:30 | Regulatory Requirements | Cover 14 CFR 91.173, 91.177, 91.169, 91.185; explain airspace IFR requirements for Classes A-E; demonstrate chart identification of airspace boundaries |
| 0:30-1:00 | Fuel Calculation | Teach structured fuel planning method; work through complete calculation for sample route; address fuel stop necessity in helicopters; student practice problem |
| 1:00-1:30 | Chart Interpretation | Demonstrate IFR Enroute Low Altitude chart components (MEA, MOCA, OROCA, airways); explain changeover points; practice route planning on charts |
| 1:30-2:00 | DPs and STARs | Explain ODPs vs. SIDs; demonstrate STAR interpretation; discuss helicopter performance limitations; show real-world examples from TPP |
| 2:00-2:30 | Approach Plates | Systematically teach approach plate components; explain helicopter Category A minimums; demonstrate point-in-space approaches; practice plate interpretation |
| 2:30-2:50 | NOTAM Review | Demonstrate NOTAM sources; practice interpretation of runway, navaid, and approach NOTAMs; explain FDC NOTAM significance; show integration into flight planning |
| 2:50-3:20 | Flight Plan Completion | Walk through FAA Form 7233-1 block-by-block; demonstrate filing via multiple methods; discuss void time clearances; student completes sample flight plan |
| 3:20-3:40 | GPS and RAIM | Explain GPS/RAIM basics; demonstrate RAIM prediction tools; discuss database currency requirements; cover RAIM failure procedures |
| 3:40-4:20 | Icing Hazards | Teach icing formation conditions; explain clear vs. rime ice; demonstrate recognition techniques; cover effects in all flight phases; teach corrective actions |
| 4:20-4:40 | Manufacturer Icing Info | Review POH/RFM icing limitations for training aircraft; demonstrate how to find icing procedures; discuss anti-ice equipment if installed |
| 4:40-5:00 | Scenario-Based Application | Present icing scenarios; student makes go/no-go decisions; review complete flight planning workflow from weather briefing to filed flight plan |
| 5:00-5:15 | Knowledge Assessment | Oral questioning covering all lesson elements; student demonstrates chart interpretation and fuel calculation; evaluate understanding of icing decision-making |
| 5:15-5:30 | Summary and Assignment | Review key points; assign student to complete full cross-country plan including weather, NOTAMs, fuel calculation, and flight plan; preview next lesson |
Total Time: 5 hours 30 minutes
Equipment
Required Materials
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Current IFR Enroute Low Altitude Charts (printed or EFB display)
- Charts covering local training area and common cross-country routes
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Terminal Procedures Publication (TPP) (printed or digital)
- Current edition for departure and destination airports
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FAA Form 7233-1 (Flight Plan Form)
- Blank forms for student practice (multiple copies)
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Sample NOTAM printouts
- Real-world examples of runway closures, navaid outages, FDC NOTAMs, icing AIRMETs
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Sample approach plates (printed full-size)
- ILS approach example
- RNAV (GPS) approach example
- Helicopter point-in-space approach example
- Approaches with notes specific to helicopters
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Computer or tablet with internet access
- Access to 1800wxbrief.com
- RAIM prediction tools (raimprediction.net or ForeFlight)
- NOTAM database
- Flight planning software
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Whiteboard or flip chart with markers
- For fuel calculations, route diagrams, and concept illustration
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Calculator (student and instructor)
- For time/fuel calculations
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Plotter and navigation tools
- For measuring distances on charts
- Course measurement
Reference Materials
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14 CFR Part 91 (printed or electronic)
- Sections 91.9, 91.167, 91.169, 91.173, 91.177, 91.185
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FAA-H-8083-15B (Instrument Flying Handbook)
- Chapter 10: IFR Flight Planning
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FAA-H-8083-21B (Helicopter Flying Handbook)
- Chapter 11: Helicopter Emergencies and Hazards (icing section)
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Aeronautical Information Manual (AIM)
- Chapter 5: Air Traffic Procedures (flight planning sections)
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Aircraft Pilot’s Operating Handbook/Rotorcraft Flight Manual
- For training helicopter (e.g., Robinson R22/R44, Schweizer 300C)
- Specifically limitations section and weather restrictions
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Chart User’s Guide (FAA)
- For symbol interpretation and chart legend reference
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Instrument Procedures Handbook (FAA-H-8083-16B)
- Chapter 2: En Route Operations
- Chapter 4: Approaches
Visual Aids and Displays
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Projected or large-format displays of:
- Sample IFR Enroute Low Altitude chart segment showing airways, MEAs, and airspace
- Sample approach plate with annotations highlighting key components
- Flight plan form with example entries
- NOTAM examples with interpretation notes
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Icing recognition photos (if available)
- Clear ice on rotor blade
- Rime ice on antenna
- Ice on windscreen
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Fuel calculation worksheet (laminated or handout)
- Structured template for students to follow calculation steps
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Cross-country planning checklist (handout)
- Step-by-step planning workflow from weather briefing to flight plan filing
Instructor Actions
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Begin with a realistic cross-country scenario: Present a specific route that is relevant to the student’s training environment (e.g., “Today we’re planning an IFR flight from Seattle to Portland”). This establishes context and makes the lesson immediately applicable.
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Demonstrate the complete planning process systematically: Walk through each step of IFR planning in the exact sequence a pilot would use in practice—weather briefing, NOTAM review, chart selection, route planning, fuel calculation, flight plan completion. Emphasize that this is a workflow, not isolated tasks.
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Use the Socratic method to build understanding: Rather than simply presenting information, ask guiding questions:
- “Looking at this forecast, do we need an alternate?”
- “What’s the MEA on this airway segment? Can our helicopter fly that altitude?”
- “If this VOR is out of service, how does that change our routing?”
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Demonstrate chart interpretation using actual charts: Project or display the IFR Enroute Low Altitude chart and physically point to each element—airways, MEAs, MOCAs, changeover points. Have the student identify these elements on their own chart.
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Work through a complete fuel calculation on the whiteboard: Write each step clearly, showing:
- Distance measurement
- Wind correction calculation
- Groundspeed determination
- Time calculation
- Fuel to destination
- Fuel to alternate
- Reserve fuel
- Total fuel required
Emphasize the revelation moment: “We need 52 gallons but the R44 only holds 30 usable—this flight requires a fuel stop. This is normal for helicopter IFR.”
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Demonstrate NOTAM research using live internet access: Show students how to access 1800wxbrief.com or ForeFlight, enter the route, and pull up NOTAMs. Read through actual NOTAMs and interpret them aloud, explaining impact on the flight.
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Walk through approach plate interpretation systematically: Use a large-format approach plate and cover each section in sequence—heading, plan view, profile view, minimums, missed approach, notes. Ask the student to identify specific elements (“What’s the DA?” “What altitude at FIXXX?”).
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Demonstrate flight plan completion block-by-block: Project a blank flight plan form and fill in each block while explaining the entry. Show common errors (wrong equipment suffix, incorrect altitude for direction of flight) and how to avoid them.
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Teach GPS/RAIM checking using actual tools: Access a RAIM prediction website, enter the planned route and time, and show the student the prediction results. Explain what the output means and when RAIM is considered adequate.
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Present icing scenarios with increasing complexity:
- Scenario 1: “Forecast shows icing. Can we go?” (No—known icing prohibited)
- Scenario 2: “No icing forecast, but we encounter ice in flight. What do we do?” (Exit immediately, descend/vector out of clouds)
- Scenario 3: “We’re icing up and can’t get lower. What now?” (Declare emergency, nearest airport, prepare for precautionary landing)
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Use the POH to demonstrate manufacturer icing limitations: Open the actual POH for the training helicopter, turn to the limitations section, and read the icing prohibition aloud. Show where anti-ice equipment procedures are located (if installed).
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Demonstrate DPs and STARs using current TPP pages: Show the student how to find ODPs in the front section of the TPP and SIDs/STARs in the procedure pages. Walk through a complete SID or STAR, explaining each routing segment and altitude restriction.
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Model professional decision-making throughout the lesson: Verbalize the thought process: “I see this NOTAM says the ILS is out of service. That means I need to check if there’s another approach with minimums that work for the forecast weather. Let me look… yes, the RNAV approach has minimums of 500 and 1, which is acceptable.”
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Correct errors immediately with explanation, not just answers: When the student makes a mistake (e.g., calculates fuel incorrectly), don’t just provide the correct answer. Ask: “Walk me through your calculation. Where did you get this number? Let’s check each step.” This builds problem-solving skills.
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Emphasize the real-world consequences of planning errors: “If you file with an expired GPS database and ATC clears you for a GPS approach, you’re now in a position where you either violate regulations by flying it or have to tell ATC you can’t accept the clearance. Both are bad outcomes that are prevented by checking the database before filing.”
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Use repetition for critical safety items: State the icing prohibition multiple times in different contexts:
- During weather briefing discussion
- During fuel planning (ice increases fuel burn)
- During route selection (avoiding forecast icing altitudes)
- During scenario-based training
Repetition builds permanent memory of critical limitations.
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Relate each concept to previous student experience: “Remember when we flew VFR cross-countries? You calculated fuel the same way. The only difference with IFR is we add the alternate and 30-minute reserve, and we can’t just land anywhere if we’re low on fuel—we need to plan more conservatively.”
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Assess understanding continuously through questioning: After each major section, ask the student to explain back: “Walk me through how you’d select an alternate airport for this flight.” Listen for gaps in understanding and address them before moving forward.
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Demonstrate filing methods but emphasize primary method: Show electronic filing (1800wxbrief, ForeFlight) as the standard, but also demonstrate how to file by phone with FSS so students have a backup method.
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End with a complete planning exercise: Give the student a route and have them plan it start to finish while you observe. Provide coaching but let them work through the process. This consolidates all lesson elements and reveals any remaining gaps.
Student Actions
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Listen actively during the introduction: The student takes notes on the lesson objectives and identifies which areas they feel least confident about (e.g., “I’m not sure how to calculate fuel with an alternate” or “I don’t understand RAIM”).
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Participate in regulatory discussion: When the instructor asks about airspace requirements, the student references 14 CFR 91.173 and explains in their own words: “IFR flight in controlled airspace requires filing a flight plan and receiving a clearance, regardless of the weather.”
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Work through the fuel calculation alongside the instructor: When the instructor demonstrates fuel planning on the whiteboard, the student performs the same calculation on paper, following each step. The student verbalizes their work: “Route distance is 180 NM, cruise speed 90 knots, headwind component 15 knots, so groundspeed is 75 knots…”
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Complete an independent fuel calculation: After the instructor demonstrates, the student calculates fuel for a different route provided by the instructor. The student shows their work and explains their reasoning. If the calculation is incorrect, the student identifies their error when prompted by the instructor.
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Locate and identify chart elements: Using their own IFR Enroute Low Altitude chart, the student finds and marks:
- The planned airway
- MEAs for each segment
- Changeover points
- Special use airspace along the route
- Communication frequencies
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Interpret a NOTAM: The instructor provides a printed NOTAM, and the student reads it aloud and explains: “This NOTAM says the Portland VOR is out of service from 1000Z to 1600Z on the 15th. That means I can’t use V165 during those times—I’d need to file GPS direct or use a different airway.”
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Complete a flight plan form: The student fills out FAA Form 7233-1 for the planned route, including:
- Correct aircraft type and equipment suffix
- Appropriate altitude for direction of flight
- Complete route description
- Calculated time en route and fuel on board
- Selected alternate airport
The student explains their entries when questioned by the instructor.
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Demonstrate approach plate interpretation: Given an unfamiliar approach plate, the student identifies:
- Approach type and runway
- Minimum altitudes at each fix
- DA or MDA and visibility requirements
- Missed approach procedure
- Any helicopter-specific notes
The student explains: “This is an RNAV GPS approach to Runway 16. The minimum altitude at ABCDE is 3,000 feet, and the MDA is 580 feet with 1 mile visibility for Category A. The missed approach is a climbing right turn to 2,500 direct to the ABC VOR.”
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Perform a RAIM prediction check: Using the instructor’s computer or tablet, the student navigates to the RAIM prediction website, enters the route waypoints and planned departure time, and interprets the results: “The prediction shows RAIM available with 6 satellites. This is adequate for the flight.”
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Make go/no-go decisions in icing scenarios: The instructor presents weather scenarios, and the student states their decision with justification:
- Scenario: “AIRMET Zulu shows icing from 4,000 to 10,000 feet along your route.”
- Student response: “I would not depart. Flight into known icing is prohibited in this helicopter. The AIRMET means icing is forecasted—that’s ‘known icing.’”
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Locate icing limitations in the POH: The student opens the POH for the training helicopter, finds the limitations section, and reads the icing prohibition aloud. The student identifies whether the aircraft has any ice protection equipment and explains its operation (or confirms there is none).
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Demonstrate DP/STAR interpretation: Given a SID or STAR, the student traces the routing on the procedure plate, identifies altitude restrictions, and explains how they would fly it: “After takeoff, I climb to 3,000 feet, turn right to intercept the 090 radial, track outbound, and cross FIXXX at or above 5,000 feet.”
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Identify required actions for RAIM failure: The instructor states, “You’re in cruise and RAIM fails,” and the student responds: “I’d immediately transition to VOR navigation, notify ATC that I’ve lost GPS capability, and would not accept any GPS-based approaches. I’d request vectors or a VOR approach.”
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Ask clarifying questions: Throughout the lesson, the student asks questions when concepts are unclear:
- “If the MEA is 12,000 feet and our helicopter can only climb to 10,000, can we file a lower altitude?”
- “What’s the difference between an ODP and a SID?”
- “How do I know if the GPS has WAAS capability?”
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Complete a full planning exercise: At the end of the lesson, the student plans a complete cross-country flight from scratch:
- Obtains weather briefing (simulated or actual)
- Reviews NOTAMs
- Selects route and altitude
- Calculates fuel
- Checks RAIM availability
- Makes go/no-go decision if icing is forecast
- Completes flight plan form
- Explains the entire plan to the instructor
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Demonstrate understanding through teaching back: The instructor asks, “Explain to me how you determine if you need an alternate,” and the student teaches the concept back: “You use the 1-2-3 rule. If the weather from one hour before to one hour after your ETA is forecast to be at least a 2,000-foot ceiling and 3 statute miles visibility, no alternate is required. If it’s worse than that, you must file an alternate.”
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Self-assess and identify knowledge gaps: After the lesson, the student identifies areas needing additional study: “I understand the fuel calculation, but I need to practice NOTAM interpretation more. Some of the abbreviations are still confusing.”
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Take organized notes: The student creates a reference sheet or checklist of the planning process to use during future flights, showing they can synthesize the lesson into a practical tool.
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Apply knowledge to real-world scenarios: When presented with a scenario (“Your alternate just went below minimums after you filed”), the student demonstrates problem-solving: “I’d need to select a new alternate before departure. I’d check weather at other nearby airports with instrument approaches and choose one that meets the forecast minimums at my ETA.”
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Demonstrate safe decision-making: Throughout the lesson, the student consistently errs on the side of safety when making decisions about weather, fuel, and equipment. The student articulates: “I’d rather delay the flight and confirm RAIM availability than launch and potentially lose GPS capability en route.”
Completion Standards
The CFII candidate successfully completes this lesson when they can:
-
Explain airspace IFR requirements for Classes A through E airspace, citing 14 CFR 91.173 and correctly identifying the regulatory requirement for IFR flight plans and clearances in controlled airspace. The explanation must be clear, accurate, and suitable for an instrument student to understand. (PTS CFII.III.B: “Regulatory requirements for instrument flight within various types of airspace.”)
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Demonstrate fuel calculation proficiency by computing estimated time en route and total fuel requirements for an IFR cross-country flight, including:
- Fuel to destination
- Fuel to alternate (if required)
- 30-minute reserve at normal cruise
- Calculations accurate within ±5 minutes for time and ±2 gallons for fuel
- Recognition when fuel requirements exceed aircraft capacity, necessitating a fuel stop
(PTS CFII.III.B: “Computation of estimated time en route and total fuel requirement for an IFR cross-country flight.”)
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Interpret IFR charts correctly by identifying and explaining the significance of:
- MEAs, MOCAs, and OROCAs on IFR Enroute Low Altitude charts
- Airway routing and changeover points
- Special use airspace affecting the planned route
- Frequencies for navigation and communication
The candidate must demonstrate these skills using actual current charts and explain in teaching-appropriate language. (PTS CFII.III.B: “Selection and correct interpretation of the current and applicable en route charts.”)
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Interpret RNAV routes, DPs, and STARs by:
- Explaining the difference between ODPs and SIDs
- Identifying routing, altitude restrictions, and special requirements on published procedures
- Recognizing when a procedure is unsuitable for helicopter operations (e.g., climb gradients exceeding 500 ft/NM)
- Teaching a student how to brief and fly a published procedure
(PTS CFII.III.B: “Selection and correct interpretation of…RNAV, DPs, STARs.”)
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Interpret standard instrument approach procedures by:
- Systematically briefing an approach plate (heading, plan view, profile view, minimums, missed approach)
- Identifying Category A minimums appropriate for helicopters
- Explaining helicopter-specific approaches (point-in-space procedures)
- Recognizing notes and restrictions affecting approach suitability
(PTS CFII.III.B: “Selection and correct interpretation of…standard IAP.”)
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Obtain and interpret NOTAMs by:
- Accessing NOTAM information through at least two methods (e.g., 1800wxbrief.com and ForeFlight)
- Correctly interpreting runway, navaid, and approach procedure NOTAMs
- Explaining the impact of NOTAMs on the planned flight
- Identifying FDC NOTAMs that amend published procedures
(PTS CFII.III.B: “Procurement and interpretation of the applicable NOTAM information.”)
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Complete an accurate IFR flight plan that reflects the conditions of the proposed flight by:
- Correctly filling out all blocks of FAA Form 7233-1
- Selecting appropriate equipment suffix code based on aircraft capability
- Choosing IFR altitude appropriate for direction of flight and route MEAs
- Including complete and correct route description
- Calculating time en route and fuel on board accurately
- Including alternate airport when required by regulation
The completed flight plan must be error-free and legally compliant. (PTS CFII.III.B: “Completes and files an IFR flight plan that accurately reflects the conditions of the proposed flight.”)
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Demonstrate GPS and RAIM knowledge by:
- Explaining the purpose and function of RAIM
- Demonstrating how to check RAIM availability using at least one prediction tool
- Verifying GPS database currency and explaining the regulatory requirement for current databases
- Describing appropriate actions if RAIM is predicted unavailable or fails in flight
(PTS CFII.III.B: “Demonstrates adequate knowledge of GPS and RAIM capability, when aircraft is so equipped.”)
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Recognize airframe icing contamination by:
- Explaining the conditions required for ice formation (visible moisture and freezing temperatures)
- Describing visual indicators of ice on rotor blades, windscreen, skids, and antennas
- Identifying performance indicators (increased vibration, power required, decreased airspeed)
- Teaching a student the critical difference between clear and rime ice
(PTS CFII.III.B: “Demonstrates the ability to recognize wing contamination due to airframe icing.” — Note: PTS uses “wing,” interpreted as “rotor” for helicopters.)
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Explain adverse effects of icing and corrective actions in each phase of flight:
- Pretakeoff: Recognition methods, prohibition on flight with contaminated rotor, de-icing procedures
- Takeoff: Performance degradation, vibration, abort criteria
- Cruise: Ice accumulation effects, immediate exit procedures (descent, vectors out of clouds), ATC notification, emergency declaration if necessary
- Landing: Increased approach speed, power requirements, priority handling
The candidate must clearly articulate that helicopters do not have time to assess icing severity—immediate action to exit icing conditions is required. (PTS CFII.III.B: “Demonstrates adequate knowledge of the adverse effects of airframe icing during landing phases of flight and corrective actions: pretakeoff, takeoff, and cruise.” — Note: Despite PTS saying “landing phases,” it lists pretakeoff, takeoff, and cruise; interpret as all phases.)
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Demonstrate familiarity with manufacturer icing procedures by:
- Locating and explaining icing prohibitions in the