Holding

Objective

The student will demonstrate mastery-level knowledge and application of holding procedures in both standard and non-standard holding patterns, published and non-published, while maintaining ATP-level precision. The student will exhibit professional decision-making regarding holding endurance calculations, remain within protected airspace, comply with all ATC reporting requirements, and execute holds with airspeed within ±10 knots, altitude within ±100 feet, headings within ±10°, and accurate course/radial tracking per ACS Task AT.VI.B.

Content

Holding Pattern Fundamentals

Standard vs. Non-Standard Patterns

• Standard holding pattern: right turns, depicted with standard symbol
• Non-standard holding pattern: left turns, flagged on approach charts
• Helicopter holding at 90 KIAS or less uses Category A criteria (AIM 5-3-8j2)
• Most turbine helicopters hold at 90 KIAS; know your aircraft’s recommended holding speed

Published vs. Non-Published Holds

• Published holds: printed on approach charts or en route charts with specific parameters
• Non-published holds: issued verbally by ATC with fix, direction, and radial/course specified
• ATC must provide: holding fix, direction from fix, radial/bearing/course, leg length or DME distance if not standard, direction of turns if non-standard, expect further clearance (EFC) time

Holding Pattern Entry Procedures

• Three entry methods: direct, parallel, teardrop
• Use heading to fix ±5° to determine entry sector (AIM 5-3-8j4)
• Direct entry: 70° sector on holding side
• Teardrop entry: 70° sector on non-holding side
• Parallel entry: 110° sector opposite holding course
• ATP standard: plan entry during approach briefing, announce intentions to crew or evaluator

Holding Fix Recognition

• Time/distance fix: cross at specified time or DME
• VOR: station passage, TO/FROM flip, needle centers
• Intersection: simultaneous bearing crossings or DME/radial fix
• GPS: waypoint arrival/FPL sequencing
• Announce “holding fix, start timing now” (outbound leg for standard patterns)

Timing Standards (14 CFR 91.175, AIM 5-3-8j5)

• At or below 14,000 feet MSL: 1-minute inbound leg (1½-minute outbound in no-wind conditions)
• Above 14,000 feet MSL: 1½-minute inbound leg
• Begin timing: abeam the fix or wings level outbound, whichever occurs later
• Adjust outbound timing to achieve 1-minute inbound (or 1½ as applicable)
• DME holding: leg length specified in NM, timing becomes backup method

Airspeed Management

• Cross holding fix at or below maximum holding speed for altitude/category
• Category A (most helicopters ≤90 KIAS):
  • MHA through 6,000 feet: 90 KIAS
  • 6,001–14,000 feet: 110 KIAS (rarely applicable to helicopters at 90 KIAS capability)
• Reduce to normal holding speed (typically 70–90 KIAS for turbine helicopters) once established
• ATP standard: ±10 knots of assigned/recommended holding speed
• Consider fuel efficiency vs. time in hold when selecting speed within approved range

Wind Correction

• Determine wind direction/velocity at holding altitude during approach
• Apply drift correction to maintain ground track on inbound and outbound legs
• Adjust outbound heading and timing to achieve proper inbound course and leg length
• Expect stronger winds at altitude — use 2× or 3× drift correction outbound in strong winds
• ATP technique: bracket the inbound course, note correction, double it outbound

Protected Airspace

• Primary protected area: 5 NM either side of holding course for helicopters
• Remain within protected airspace at all times (critical risk management item)
• Additional 5 NM buffer exists but not for pilot planning
• Exceeding protected airspace may result in terrain/obstacle conflict and certificate action
• Monitor course deviation continuously; correct immediately if drifting beyond limits

Holding Endurance and Fuel Planning

Fuel Flow Considerations

• Calculate fuel flow at holding altitude and recommended holding power setting
• Most turbine helicopters: 30–40 GPH at typical holding speeds (aircraft-specific)
• Account for increased fuel flow if holding at higher altitude/lower density altitude
• Factor anti-ice/deice systems if operating in icing conditions
• Consider fuel flow for missed approach and alternate requirements in total endurance

Endurance Calculation Process

1. Determine current fuel on board (cross-check gauges and totalizer)
2. Calculate fuel required to alternate (distance ÷ groundspeed × fuel flow + reserve)
3. Subtract alternate fuel and 30-minute VFR reserve (14 CFR 91.167 for IFR helicopters)
4. Remaining fuel ÷ holding fuel flow = holding endurance in hours
5. Convert to minutes, subtract buffer (10–15 minutes recommended)
6. Advise ATC if holding will reduce fuel below alternate + reserve + buffer

Regulatory Fuel Requirements (14 CFR 91.167)

• Helicopters IFR: fuel to destination, then alternate (if required), plus 30 minutes at normal cruise
• If holding erodes this requirement, declare minimum fuel or emergency
• “Minimum fuel”: advisory to ATC, not emergency, but commits to landing at specific airport
• Fuel emergency: requires priority handling, use when safety is in question

Professional Decision-Making

• Continuously update holding endurance as conditions change
• Communicate fuel status proactively — don’t wait until critical
• Consider weather trends at destination (improving vs. deteriorating)
• Evaluate alternate viability and fuel required if destination remains unavailable
• ATP mindset: decision to divert, declare minimum fuel, or declare emergency made before critical

ATC Reporting Requirements (AIM 5-3-3)

• Report reaching holding fix: “Helicopter 123, holding fix, 5,000”
• Report leaving holding fix: “Helicopter 123, departing holding fix”
• Required reports in controlled airspace: vacating altitudes during climbs/descents, altitude changes, unable to maintain 500 FPM climb/descent, TAS variation of 5% or 10 knots from filed, time/altitude reaching holding fix, leaving holding fix
• Report if unable to comply with any portion of clearance
• Provide pilot-initiated reports: deteriorating conditions, hazardous weather, unable to maintain assigned altitude due to turbulence/icing

EFC Time Compliance

• Expect Further Clearance (EFC) time is critical for lost communications planning (14 CFR 91.185)
• Arrive at holding fix as close as possible to EFC time but not before
• If early to fix: request delay vectors, extend upwind/downwind in approach segment, or slow to minimum controllable speed if safely above obstacles
• Plan descent/approach routing to cross fix within 1–2 minutes of EFC
• If comm failure: depart holding fix at EFC time, proceed with approach or as cleared

Risk Management Items

Remaining Within Protected Airspace

• Most critical risk: obstacle/terrain clearance depends on staying within protected airspace
• Use HSI/CDI full-scale deflection awareness (±5° or ±5 NM for helicopters)
• Correct drift immediately — don’t let course deviations accumulate
• In strong winds, consider requesting delay vectors rather than aggressive wind corrections that increase workload

ATC Reporting Compliance

• Non-compliance creates traffic conflicts and may trigger emergency response
• Use standard phraseology for position reports
• If unclear about reporting requirement, ask ATC or err on side of over-reporting
• Lost communications: follow 14 CFR 91.185 — maintain last assigned altitude or MEA if higher, depart holding fix at EFC

EFC Time Arrival Management

• Early arrival forces rushed decision-making
• Late arrival may indicate navigation error or excessive delay
• Plan timing during last 5 minutes of hold to achieve EFC ±1 minute
• Request updated EFC if delays extend beyond original estimate

ATP Precision Standards Summary

• Airspeed: ±10 knots
• Altitude: ±100 feet
• Headings: ±10°
• Course tracking: accurate radial/course/bearing tracking (full-scale CDI deflection unacceptable)
• Timing: inbound leg within ±5 seconds of standard (1:00 or 1:30)
• Pattern entry: correct entry type, executed smoothly
• Risk management: no protected airspace excursions, full ATC compliance, arrive within 2 minutes of EFC

Schedule

Equipment

• Aircraft equipped for IFR flight with functioning HSI or CDI, GPS or VOR/DME navigation, intercom system
• Current IFR en route charts and approach plates for local area (published holds)
• FAA-S-ACS-ATP (ATP Helicopter Airman Certification Standards)
• FAA-H-8083-15B (Instrument Flying Handbook), Chapter 10
• AIM (Aeronautical Information Manual), Chapter 5, Section 3
• FAA-H-8083-21B (Helicopter Flying Handbook), Chapter 11
• 14 CFR Part 91 (current edition)
• Pilot’s Operating Handbook for aircraft flown (holding speed, fuel flow charts)
• Whiteboard or tablet with holding pattern diagram capability
• Flight computer or electronic calculator for fuel/endurance computations
• Current weather briefing and forecasts
• View-limiting device (foggles or hood) for simulated instrument conditions
• Holding pattern entry visualization aid (wheel or sector diagram)

Instructor Actions

1. Begin ground instruction by reviewing the purpose of holding patterns: ATC flow control, weather delays, approach sequencing, lost communications contingency, and explain that ATP standards demand precision and professional fuel/time management throughout.

2. Draw standard and non-standard holding patterns on whiteboard, labeling fix, holding side, inbound course, and explain that standard patterns use right turns, non-standard use left turns, and that most helicopters hold at 90 KIAS using Category A protected airspace criteria.

3. Demonstrate the three holding pattern entry methods using a heading indicator or sectored diagram: direct entry (heading to fix within 70° of holding side), teardrop entry (70° on non-holding side), parallel entry (110° sector opposite holding course), emphasizing that entries should be smooth and minimize time to establish the inbound leg.

4. Explain timing standards per AIM 5-3-8: 1-minute inbound legs at or below 14,000 feet MSL, 1½-minute inbound above 14,000 feet, beginning timing abeam the fix or wings level outbound, and demonstrate how to adjust outbound timing (+/- 10–20 seconds) to achieve the standard inbound leg.

5. Walk through a published holding pattern on an approach chart, identifying the fix, direction, inbound course, leg length if non-standard, pattern direction, and maximum holding speed, and explain how this information integrates with the approach procedure.

6. Simulate an ATC non-published holding clearance: “Helicopter 123, hold west of ABC VOR on the 270 radial, left turns, 1-minute legs, expect further clearance 1530,” and have the student visualize and brief back the holding pattern with entry method.

7. Demonstrate fuel endurance calculation using current aircraft fuel load: “We have 120 gallons on board, burning 35 GPH in the hold, our alternate is 45 minutes away at 40 GPH which is 30 gallons, plus 30-minute reserve is another 17 gallons, leaving us 73 gallons for holding, or 2 hours holding endurance, minus a 15-minute buffer gives us 1 hour 45 minutes we could safely hold.”

8. Explain wind correction technique: determine wind direction at holding altitude, apply drift correction on inbound leg to maintain course centerline, double or triple the correction on outbound heading to compensate for wind drift, adjust outbound timing to achieve 1-minute inbound, and brief that ATP pilots anticipate and correct drift smoothly rather than reacting late.

9. Review ATC reporting requirements: reaching the clearance limit, leaving the holding fix, any altitude deviations, inability to comply with clearances, and explain that professional communication is critical for ATC traffic management and lost comm contingency planning.

10. Demonstrate recognition of holding fix arrival using VOR TO/FROM flip, intersection passage, GPS waypoint sequencing, or DME distance, and explain the importance of starting timing precisely to maintain proper pattern dimensions.

11. Pre-flight, brief the flight scenario: “Today we’ll establish in two published holds and two ATC-assigned non-published holds, you’ll demonstrate all three entry types, we’ll discuss fuel endurance during each hold, and I’ll evaluate your precision against ATP standards of ±10 knots airspeed, ±100 feet altitude, ±10° heading, and accurate course tracking.”

12. During flight demonstration, fly one complete holding pattern entry and two holding circuits, verbalizing: entry method selection, airspeed reduction crossing the fix, timing start point, wind correction application, outbound timing adjustment, and inbound course tracking corrections while maintaining altitude and airspeed precisely.

13. Assign the student the first holding task: “ATC has cleared us to hold southwest of the XYZ VOR on the 225 radial, standard pattern, 1-minute legs, expect further clearance in 15 minutes; brief the hold, calculate your entry, and execute while maintaining ATP standards.”

14. Monitor the student’s performance, providing coaching only as needed, allowing the student to self-correct minor deviations, but intervening if protected airspace boundaries are approached, altitude/airspeed excursions exceed ATP tolerances, or incorrect entry is being flown.

15. Issue a second holding clearance (non-standard): “Hold east of the ABC intersection on the 090 radial, left turns, 1-minute legs,” and evaluate the student’s recognition of non-standard pattern and appropriate entry selection.

16. Assign a DME holding pattern: “Hold southeast of the VOR, 15 DME, standard turns, report established,” and evaluate the student’s leg length compliance using DME rather than timing as primary method.

17. Introduce a fuel endurance scenario mid-hold: “We’ve been holding 20 minutes, update your holding endurance calculation and advise if we need to communicate anything to ATC,” evaluating the student’s ability to recalculate fuel, determine remaining hold time, and make professional decisions about minimum fuel or diversion.

18. Simulate ATC instruction to depart holding fix: “Helicopter 123, cleared for the approach,” and evaluate the student’s ability to smoothly transition from holding to approach, reporting “leaving holding fix” as required.

19. During post-flight debrief, review each holding pattern: entry method accuracy, altitude/airspeed/heading precision, course tracking quality, timing accuracy, wind correction effectiveness, ATC communications completeness, and fuel management decision-making.

20. Provide specific feedback on deviations from ATP standards, using actual numbers: “On your second hold, you were 15 knots fast on the outbound leg and 120 feet high on the inbound turn, that’s outside ATP tolerances; let’s discuss what happened and how to correct it—what was different about that pattern compared to your first one?”

21. Emphasize risk management review: “You remained within protected airspace on all patterns, that’s the number one priority; your ATC reporting was complete and timely; and you arrived at the holding fix within one minute of the EFC time I gave you—these are the critical safety items that cannot be compromised at the ATP level.”

22. Assign additional practice if any standard was not met consistently: “I want to see two more holding patterns with all three parameters—altitude, airspeed, heading—simultaneously within ATP tolerances for the entire hold,” and demonstrate additional coaching techniques to help the student achieve precision.

23. Conclude ground debrief by connecting holding procedures to real-world ATP operations: single-pilot IFR in weather delays, fuel management under pressure, professional ATC communication, and decision-making when conditions are deteriorating, reinforcing that ATP certificate holders are expected to handle these situations with consistent precision and sound judgment.

Student Actions

1. During ground instruction, take notes on holding pattern components, entry methods, timing standards, airspeed requirements, and fuel endurance calculations, asking clarifying questions about any unclear procedures.

2. Practice determining holding pattern entries using the instructor’s heading scenarios, visualizing the pattern orientation and selecting direct, parallel, or teardrop entry for each scenario presented.

3. Work through a complete fuel endurance calculation using the current aircraft’s fuel load and published fuel flow rates, demonstrating understanding of regulatory requirements (destination + alternate + 30-minute reserve) and arriving at a safe holding time with appropriate buffer.

4. Brief back non-published holding clearances issued by the instructor, drawing the pattern, identifying the entry method, and stating the inbound course, turn direction, and leg length to confirm complete understanding.

5. During pre-flight planning, review the approach charts for the assigned area, identifying all published holding patterns, noting fixes, courses, directions, and any non-standard elements, and preparing navigation frequencies.

6. Conduct a professional cockpit setup before practicing holds: navigation radios tuned and identified, holding pattern depiction on chart or GPS flight plan, HSI or CDI properly set, fuel quantity verified, and instruments cross-checked for proper indications.

7. Fly the aircraft to the first assigned holding fix, maintaining instrument cross-check, altitude, and airspeed, while preparing for the hold: determining entry method, planning airspeed reduction, and preparing to start timing.

8. Execute the holding pattern entry smoothly: cross the fix at or below maximum holding speed, announce “holding fix, starting timing,” turn to the entry heading, and establish the pattern using the selected entry method while maintaining ATP altitude, airspeed, and heading tolerances.

9. During established holding, maintain continuous instrument cross-check with emphasis on altitude (±100 feet), airspeed (±10 knots), and heading (±10°), adjusting for wind drift to keep the inbound course centered, and timing each leg to achieve standard inbound leg length.

10. Adjust outbound timing based on inbound leg results: if inbound was 1:05, reduce outbound time by 5–10 seconds; if inbound was 0:55, add 5–10 seconds outbound, demonstrating the iterative process of achieving consistent 1-minute inbound legs.

11. Make required position reports to ATC (or simulated ATC): “Helicopter 123, established in the hold at 5,000,” and upon departure, “Helicopter 123, leaving holding fix,” using professional phraseology and timely communication.

12. Recalculate holding endurance when prompted by instructor or when significant time has elapsed, updating fuel remaining, subtracting alternate and reserve requirements, and determining if continued holding is within safe limits or if minimum fuel should be declared.

13. Demonstrate recognition of protected airspace boundaries by maintaining CDI or HSI deviation within half-scale deflection, correcting immediately for any drift beyond acceptable limits, and verbalizing awareness: “Seeing a quarter-scale deflection left, correcting heading 5° right.”

14. Execute missed approach procedures from established holding pattern when cleared, smoothly transitioning from holding configuration and mindset to approach or departure mode, maintaining all instrument tolerances throughout the transition.

15. Respond to instructor-created scenarios professionally: EFC time approaching, fuel concern developing, weather improving/deteriorating at destination, demonstrating decision-making appropriate for ATP-level single-pilot resource management.

16. During post-flight debrief, self-assess performance against ATP standards, identify specific deviations (altitude, airspeed, heading, timing), analyze causes of deviations, and describe corrective actions for future performance improvement.

17. Ask questions about any procedure or situation that was unclear or challenging during the flight, seeking to understand not just the “what” but the “why” behind holding procedures and ATP-level precision requirements.

18. Demonstrate understanding of the relationship between holding procedures, fuel management, ATC communication, and risk management, articulating how these elements integrate in professional helicopter IFR operations.

Completion Standards

The lesson is complete when the student consistently demonstrates ATP-level proficiency in holding procedures per ACS Task AT.VI.B, meeting all of the following standards:

Knowledge Standards

• Accurately describes the differences between standard (right turns) and non-standard (left turns) holding patterns and correctly identifies each from chart depictions or verbal ATC clearances
• Explains the three holding pattern entry methods (direct, parallel, teardrop), correctly determines the appropriate entry for any given holding clearance based on heading to the fix, and briefs the entry method before executing
• States the correct timing standards: 1-minute inbound at or below 14,000 feet MSL, 1½-minute inbound above 14,000 feet, and demonstrates knowledge of when timing begins (abeam fix or wings level, whichever is later)
• Correctly identifies published and non-published holding patterns, explaining the required elements of each and demonstrating ability to extract holding information from approach charts
• Calculates holding endurance accurately: determines current fuel on board, subtracts fuel required for alternate and 30-minute reserve (14 CFR 91.167), divides remaining fuel by holding fuel flow, and arrives at holding time with appropriate buffer
• Explains the regulatory fuel requirements for helicopter IFR operations (14 CFR 91.167) and correctly determines when minimum fuel or fuel emergency declarations are necessary based on remaining endurance
• States all required ATC position reports: reaching holding fix, leaving holding fix, and any other reports required by 14 CFR 91.183 and AIM 5-3-3

Risk Management Standards

• Remains within protected airspace throughout all holding patterns, maintaining course tracking that keeps CDI/HSI deviation within half-scale deflection, correcting immediately for any drift toward full-scale deflection
• Complies with all ATC reporting requirements, making timely and accurate position reports at the holding fix and when departing, using standard phraseology and professional communication
• Arrives over the holding fix within 2 minutes of the assigned or stated EFC (Expect Further Clearance) time, demonstrating planning and timing management to avoid both excessively early and late arrival
• Demonstrates professional fuel management decision-making, proactively calculating holding endurance, making timely decisions about diversion or minimum fuel declarations, and communicating fuel status to ATC when appropriate
• Identifies and mitigates risks associated with extended holding: icing accumulation, fuel exhaustion, weather deterioration, physiological factors, and demonstrates appropriate decision-making when these risks develop

Skill Standards (per ACS AT.VI.B)

• Changes to the recommended holding airspeed appropriate for the helicopter and holding altitude, crossing the holding fix at or below maximum holding speed (90 KIAS for Category A helicopters at typical holding altitudes), smoothly decelerating to established holding speed (typically 70–90 KIAS)
• Recognizes arrival at the clearance limit or holding fix using appropriate navigation indications (VOR TO/FROM flip, intersection passage, GPS waypoint arrival, DME distance), announces “holding fix” and starts timing at the correct point
• Executes the correct holding pattern entry (direct, parallel, or teardrop) based on heading to fix, completing the entry smoothly and establishing on the inbound course within one complete circuit of the pattern
• Maintains airspeed within ±10 knots of the recommended holding speed throughout all segments of the holding pattern (entry, outbound leg, turns, inbound leg)
• Maintains altitude within ±100 feet of the assigned holding altitude throughout the holding pattern, including during turns and turbulence
• Maintains headings within ±10° during straight-and-level flight segments (outbound and inbound legs), adjusting for wind drift to track the assigned course accurately
• Accurately tracks radials, courses, and bearings, keeping the CDI/HSI needle centered or within one dot deflection, applying appropriate wind correction angles on outbound leg to achieve course tracking on inbound leg
• Uses proper timing criteria: achieves 1-minute inbound leg (or 1½-minute above 14,000 feet) within ±5 seconds, and adjusts outbound timing appropriately to compensate for wind and achieve standard inbound leg length
• Complies with DME distance specifications when assigned a DME holding pattern, maintaining the specified leg length in nautical miles and using DME as the primary distance reference rather than timing
• Demonstrates all of the above standards simultaneously and consistently through a minimum of four holding patterns (published and non-published, standard and non-standard, representing all three entry types)

Disqualifying Performance (lesson not complete)

• Exceeds full-scale CDI/HSI deflection (exits protected airspace) at any time during holding pattern
• Fails to make required position reports to ATC or provides incorrect information
• Exceeds ATP airspeed tolerance of ±10 knots for more than 10 consecutive seconds during established holding
• Exceeds ATP altitude tolerance of ±100 feet at any time during holding pattern
• Exceeds heading tolerance of ±10° for more than 5 consecutive seconds during straight flight segments
• Selects incorrect holding pattern entry and fails to self-correct before establishing in the pattern
• Demonstrates unsafe fuel management: fails to calculate holding endurance, allows fuel to drop below alternate + reserve requirements, or continues holding when minimum fuel declaration is appropriate
• Arrives at holding fix more than 3 minutes before or after assigned EFC time without requesting delay or updated clearance