CA.IV.I.S8FAA-S-ACS-7B · Nov 2023Skills

Use appropriate techniques to lift seaplane from the water considering surface conditions.

ACS element text (the applicant demonstrates understanding of)

Use appropriate techniques to lift seaplane from the water considering surface conditions.

Bottom line

To reduce float drag and break the grip of the water, the pilot applies enough aileron pressure to lift one float just out of the water and allows the seaplane to continue to accelerate on the step of the other float until lift-off. By allowing the seaplane to turn slightly in the direction the aileron is being held rather than holding opposite rudder to maintain a straight course, considerable aerodynamic drag is eliminated, aiding acceleration and lift-off. By taxiing around in a circle, the wake of the seaplane spreads and reflects from shorelines, creating a slightly rougher surface that can provide some visual depth and help the floats break free during takeoff.

FAA references

  1. SEA ch. 4 (p. 4-15) — FAA-H-8083-23
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