| 摘要 |
A landing gear assembly comprises a wheel 2, a skid 7 mounted on a support member 5 which is mounted coaxially with the wheel 2, and a mechanical drive means 13, 14, the skid 7 being positionable in a first position relative the wheel 2, but not in contact with a tyre 1 thereof, wherein on landing the skid 7 contacts the ground prior to the wheel 2 at which point the skid 7 moves to a second position relative to the wheel 2 which allows the wheel 2 to come into contact with the ground and which also imparts rotational movement to the wheel 2 via the mechanical drive means 13, 14, the assembly further comprising means 15 for holding the skid 7 in the second position. The mechanical drive means 13, 14 may comprise a pawl 13 and ratchet 14 assembly. The means 15 for holding the skid in the second position may be a braking plate. The skid 7 may have a contact portion 7a comprising a resilient material. |
