HYDRAULICS.

Abstract

Retraction and lowering of the landing gear and opening of the nose gear bay doors are hydraulically activated. Each main system is supplied by an axial-piston pump driven by one engine. In the event of a pump failure in one system, the pump of the other system supplies power by means of a transfer unit connected between systems I and II. An electrically driven emergency pump is connected into system I and can be cut in should one engine and the second pump fail simultaneously. By the operation of this emergency pump a complete check of alll hydraulic systems can be carried out on the ground without having to start one engine.