Automatic trim control for jet boat

Details Automatic trim control for jet boat Automatic trim control for jet boat

1995-12-05

1997-11-04

Avila, Stephen

Marine propulsion

Jet drive

440 47, B63H 1100

Patent

active

056832753

ABSTRACT:
A trim adjusting system for a small jet propelled personal watercraft. The trim is adjusted automatically in response to sensed water conditions which will indicate, among other things, the condition of the water flowing through the water inlet opening of the jet propulsion unit. The measured conditions may include water condition, watercraft speed and watercraft trim angle. The arrangement also permits manual operation and the permissible range of trim adjustment is less in manual operation than in automatic operation.

REFERENCES:
patent: 3788265 (1974-01-01), Moore
patent: 3834345 (1974-09-01), Hager et al.
patent: 3906885 (1975-09-01), Woodfill
patent: 4051801 (1977-10-01), Woodfill et al.
patent: 5507672 (1996-04-01), Imaeda
patent: 5540174 (1996-07-01), Kishi et al.

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