14 C.F.R. § 27.239 Spray characteristics.
Title 14 - Aeronautics and Space
If certification for water operation is requested, no spray characteristics during taxiing, takeoff, or landing may obscure the vision of the pilot or damage the rotors, propellers, or other parts of the rotorcraft.
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart B—Flight
Ground and Water Handling Characteristics
§ 27.239 Spray characteristics.
