Improved means for assisting the landing of aircraft on the deck of an aircraft carrier

摘要

605,030. Aircraft arrester gear. FAIREY AVIATION CO., Ltd., and CHAPLIN, H. E. Dec. 12, 1945, No. 33663. [Class 4] Means for assisting the landing of an aircraft on the deck of a carrier comprises a strut f capable of being projected downwardly from the nose a of the aircraft, to engage a crash barrier wire, and a hook-like member u to prevent the wire from riding over the nose of the aircraft. The strut carries a deckengaging roller at its forward end, and pairs of rollers g, h, disposed respectively at the rear end and forward thereof, for engagement with channel shaped guides b, c along which the strut is projected and retracted. The portions b of the guides are horizontal, while portions c are inclined forwardly and downwardly, the rollers h moving along the latter to bring the strut into its operative position, the rollers g then engaging pockets d at the junction of the guide portions. Operating mechanism for the strut consists of toggle links m, n connected by a spring q to a bell-crank lever r, s and link t, the latter of which is connected to the undercarriage operating mechanism, whereby the strut is projected when the undercarriage is lowered. The hook-like member u is moved into its operative position by the projection of the strut, and is formed with a lug z which is engaged by the roller j during retraction of the strut to return the hook to the inoperative position. A spring link x is connected to the hook member in such a way that it passes through dead-centre positions when the hook moves into the operative, and returns to the inoperative position. The strut may be retracted manually with the undercarriage in the extended position, the spring q permitting the necessary lost-motion between the toggle links m, n, and the bell-crank r, s.