| 摘要 |
An aircraft has an undercarriage assembly 16,18,20 movable between a retracted position (dashed lines) in a bay 12 in the body 10 of the aircraft and an operative position (solid lines) in which the undercarriage assembly 16,18,20 projects from the body 10 of the aircraft. In order to deal with the problem of the undercarriage assembly 16,18,20 not moving properly to its locked-down position when the aircraft is about to land, an airbag 24 is mounted in the bay 12 and is arranged so that, upon inflation, the airbag 24 bears on the undercarriage assembly 16,18,20 to urge it towards its operative position. The gas for inflation may be stored in a gas bottle, released by an electrically operated valve, and may be nitrogen. The undercarriage may pivot about a longitudinal axis (fig 2). |
