Abstract: The knife comprises a locking strip (2), one end of which can be fitted in an anchoring point (6) of the blade (4), and an unlocking device (1) whereby, when a push button (10) is actuated, the strip can be disengaged from the anchoring point so that the blade can pivot freely.

Abstract: A planetary gear transmission for use in gas turbine engines is provided which includes a gear case housing fixed to the engine housing, and a ring gear is fixed to the interior of the gear case housing in a cavity defined therein. A first stage planetary gear assembly is provided in the housing, including a first sun gear coupled to an output shaft of the engine, and a first planetary gear carrier is rotatably mounted in the housing. First planetary pinion gears are supported by the first carrier gears and mesh with the first sun gear and with the ring gear. A second stage planetary gear assembly is provided within the housing and comprises a second sun gear coupled to the first planetary carrier. The second stage planetary gear assembly includes a second planetary carrier coupled to a propeller shaft. The second carrier supports planetary pinion gears which mesh with the ring gear and the second gun gear.