| 摘要 |
A keel-less "vehicle" (boat, boat body, gliding device or locomotive device or boat device) is to be designed in such a way that it is equally suitable for use, preferably for rescue missions, on water and ice surfaces. For this purpose, an engine-driven locomotive device comprising a catamaran-like main body of at least two parallel, mutually spaced, inflatable tube bodies ( 1, 2 ) and a bottom ( 6 ) disposed between said tube bodies at a distance from the respective tube body underside ( 4 ) and a propeller propulsion ( 25 ) supportable on the vehicle body is suggested.
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