| 摘要 |
1. An aircraft landing gear arrangement including a main oleo strut having forward and aft trunnion bearings, a mounting on the aircraft for the forward trunnion bearing, a gear beam mounted on the aircraft at either end thereof and having a mounting intermediate the ends for the aft trunnion bearing, the mounting for the forward trunnion bearing including a fusible element, and the mounting for the aft trunnion bearing being rotatable about a longitudinal axis of the gear beam, whereby to permit detachment of the landing gear from the aircraft in a controlled manner in the event of an overload being applied thereto causing the fusible element to shear. 2. An arrangement as in claim 1 in which the mounting for the forward trunnion bearing is carried on a rear spar of a wing for the aircraft and the gear beam is mounted at one end to the rear spar and at the other end to a fuselage of the aircraft. 3. An arrangement as in claim 1 or 2 in which the mounting for the aft trunnion bearing is integral with the structure of the gear beam. 4. An arrangement as in claim 1, 2 or 3 in which the mounting for the aft trunnion bearing includes a supplemental bearing having as its pivotal axis the said longitudinal axis of the gear beam. 5. An arrangement as in claim 4 in which the supplemental bearing is mounted in a recess formed in the structure of the gear beam. 6. An arrangement as in claim 1, 2, 3 or 4 including an end bearing at either end of the gear beam for rotatably mounting the gear beam to the aircraft. 7. An arrangement as in claim 6 including fusible locating means to maintain orientation of the gear beam about the said longitudinal axis during normal operation of the landing gear. 8. An arrangement as in claim 7 in which the fusible locating means are located in the vicinity of at least one end bearing of the gear beam. 9. An arrangement as in claim 7 in which the fusible locating means comprise at least one strut extending between a position on the gear beam spaced from the said longitudinal axis and a fixed position on the aircraft. 10. An aircraft including a landing gear arrangement according to any preceding claim. |
