摘要 |
The controller has a propeller driven by a motor (2) to generate a water flow, a controller (4, 12,24) for controlling the propeller's rotation direction and a manual actuator (12) for controlling the operation of the controller. The controller has a delay device (24) that ensures that the propeller turning in one direction changes to the other direction by coming at least approximately to rest for a defined period before turning in the other direction.
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