Navigate / EASA

CS 23.2310 Buoyancy for seaplanes and amphibians

ED Decision 2017/013/R

Aeroplanes intended for operations on water must:

(a) provide buoyancy of 80 % in excess of the buoyancy required to support the maximum weight of the aeroplane in fresh water; and

(b) have sufficient margin so that the aeroplane will stay afloat at rest in calm water without capsizing in case of a likely float or hull flooding.