| 摘要 |
<p>A ramp system (10) in a first embodiment incorporates a fore (12) and an aft (14) ramp section interconnected by a spindle (24) which permits both pitch and roll movement of the aft section relative to the fore section. The fore section is hingedly connected to an aircraft structure at an opening thereof so that the fore section is capable of pitch movement relative to the aircraft. A set of hydraulic actuators (22) provide controlled movement to the sections and additionally secure the sections in their desired positions. A set of rollers (26) and curved tracks (28) on adjoining portions of the sections both provide secure interconnection of the sections and prevent yaw movement of the aft section relative to the fore section. Rotation of the aft section relative to the fore section allows quick and simple disconnection and removal of the aft section and thereby provides interchangeability with alternate aft sections adapted to provide the aircraft with alternate functional capabilities. The second embodiment (110) is essentially similar to the first embodiment except that it utilizes a ramp (114) which is directly connected to an aircraft structure (116) via the spindle (124) and set of rollers (126) and tracks (128) so that the ramp (114) is removable from the aircraft structure (116) and interchangeable with other ramps.</p> |
