Title:
WATER JET PROPELLING BOAT
Document Type and Number:
Japanese Patent JP2003182690
Kind Code:
A
Abstract:
To improve rudder control and turning performance in advancing with inertia even when an engine is stopped or in the idling state.
When an engine driving state detecting means 44 detects that the engine is stopped or in the idling state and a rudder angle detecting means 43 detects that the rudder angle is larger than a set value, a movable sponson 322 corresponding to the detected steering direction is turned by a displacement device 50 by a predetermined angle from an almost horizontal attitude to a forward inclined attitude, by which a boat body can smoothly be turned in the steering direction by increased water resistance on one side of the boat body.
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Inventors:
ITO KENJI
TANI KIYOSHI
TANI KIYOSHI
Application Number:
JP2001384920A
Publication Date:
July 03, 2003
Filing Date:
December 18, 2001
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
B63H25/50; B63B35/73; B63H11/10; (IPC1-7): B63H25/50; B63B35/73; B63H11/10
Attorney, Agent or Firm:
Etsushi Kotani (2 outside)