AI.VII.LFAA-S-ACS-25 · Nov 2023
Rough Water Approach and Landing (ASES, AMES)
To determine the applicant understands rough water approach, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction. Note: If a rough water condition does not exist, the applicant must be evaluated by simulating the Task.
Bottom line
Water conditions that cause no difficulty for small boats can be too rough for a seaplane. In general, make the touchdown at a somewhat flatter pitch attitude than usual.
FAA references
- SEA ch. 6 (p. 6-7) — FAA-H-8083-23
Knowledge
- AI.VII.L.K1: Purpose of and procedures for rough water approach and landing.
- AI.VII.L.K2: A stabilized approach, including energy management concepts.
- AI.VII.L.K3: Effects of atmospheric conditions, including wind, on approach and landing performance.
- AI.VII.L.K4: Wind correction techniques on approach and landing.
- AI.VII.L.K5: When and why rough water techniques are used.
- AI.VII.L.K6: Common errors related to this Task.
Risk management
- AI.VII.L.R1: Selection of approach path and touchdown area based on pilot capability, airplane performance and limitations, available distance, and wind.
- AI.VII.L.R2: Effects of:
- AI.VII.L.R2a: a. Crosswind
- AI.VII.L.R2b: b. Windshear
- AI.VII.L.R2c: c. Tailwind
- AI.VII.L.R2d: d. Wake turbulence
- AI.VII.L.R2e: e. Water surface/condition
- AI.VII.L.R3: Planning for a go-around and rejected landing.
- AI.VII.L.R4: Collision hazards.
- AI.VII.L.R5: Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).
- AI.VII.L.R6: Distractions, task prioritization, loss of situational awareness, or disorientation.
- AI.VII.L.R7: Gear position in an amphibious airplane.
Skills
- AI.VII.L.S1: Complete the appropriate checklist(s).
- AI.VII.L.S2: Make radio calls as appropriate.
- AI.VII.L.S3: Ensure the airplane is aligned with the correct/assigned waterway.
- AI.VII.L.S4: Scan the landing area for traffic and obstructions.
- AI.VII.L.S5: Select and aim for a suitable touchdown point considering the wind conditions, landing surface, and obstructions.
- AI.VII.L.S6: Establish the recommended approach and landing configuration, airspeed, and trim, and adjust pitch attitude and power as required to maintai
- AI.VII.L.S7: Maintain manufacturer’s published approach airspeed or in its absence not more than 1.3 times the stalling speed or the minimum steady fligh
- AI.VII.L.S8: Maintain directional control and appropriate crosswind correction throughout the approach and landing.
- AI.VII.L.S9: Make smooth, timely, and correct power and control adjustments to maintain proper pitch attitude and rate of descent to touchdown.
- AI.VII.L.S10: Contact the water in a proper pitch attitude, considering the type of rough water.
- AI.VII.L.S11: Analyze and correct common errors related to this Task.
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