Patent ID: 9725148
Date: 2017-08-08
CPC Classifications: B63H

Claim:
1. A jet propelled watercraft comprising: a vessel body; a jet propulsion mechanism configured to propel the vessel body; a controller configured and programmed to control a thrust of the jet propulsion mechanism to propel the vessel body; and a bucket configured to move to a retracted position spaced away from a jet of water ejected from the jet propulsion mechanism and to a jet receiving position to receive the jet of water ejected from the jet propulsion mechanism; wherein the controller is configured and programmed to increase the thrust until the thrust is increased to a predetermined value after the bucket has been moved from the retracted position to the jet receiving position; the controller is configured and programmed to increase the thrust at a rate that is changing in accordance with a forward speed of the vessel body; and the controller is configured and programmed to control the thrust using a throttle opening degree that is calculated by multiplying a target throttle opening degree and a regulation coefficient.