| 摘要 |
<p>A sit-astride amphibious vehicle configuration (10) which supports a high performance envelope both on land as well as in water. The vehicle (10) has a planing hull (40) and four retractable wheels (50, 51, 52, 53). Handlebars (54) provide for directional control in both modes of operation. Each road wheel (50, 51, 52, 53) is retractable by pivoting through at least 45° so as to maximize ground clearance when in the land mode of operation and to minimize drag at substantial lean angles when in the marine mode of operation. While a jet drive (55) may remain directly connected to the engine (60) at all times, the driven wheels (51, 52) are only connected during land mode via a speed-change transmission (61).</p> |
