Abstract: A hydrofoil trim tab for use with each of a pair of seaplane floats, each tab including a substantially planar shaped body secured to an inside facing location of each float such that a pair of tab bodies are arrayed in opposing and inwardly directed fashion relative to the floats. Each tab is further constructed as a two piece article, a first portion being either mechanically secured or welded to the surface of the float, with a second portion being releasably/breakaway attached to the first portion, such as by frangible fasteners engaging a slidably connection location between the portions. In this fashion, inadvertent breakage of a trim tab at the frangible location will prevent damage to the float.

Abstract: A braking system for ski or float equipped aircraft which is actuated by the conventional brake system of the aircraft. The system permits normal braking operation to activate the additional components which have been added to the ski or float of the airplane. A braking member actuated by a hydraulic cylinder connected to the aircraft's original hydraulic system form the main components of this invention.