| 摘要 |
A marine vehicle which may comprise a sidewall gas-cushion vehicle, is provided with hydrodynamic means, for example, rudders 20, means for sensing undesirable motions of the vehicle, and means for operating said hydrodynamic means so as to apply restoring forces to the vehicle. The hydrodynamic means comprise a pair of rudders 20 mounted beneath the vehicle and on opposite sides of the longitudinal axis thereof, the rudders being disposed in planes which are inclined to the vertical and which intersect above the rudders. The means for sensing undesirable motions of the vehicle comprise gyroscope 75 and/or accelerometer means. The output of the motion- sensing means is applicable to a band pass filter 76 of predetermined transfer function and the filtered sensing signal is applicable to a summing point 70, to which is also applied a steering command signal. <IMAGE> |
