Method of steering a boat with double outboard drives and...

Details Method of steering a boat with double outboard drives and... Method of steering a boat with double outboard drives and...

2006-04-25

2006-04-25

Avila, Stephen (Department: 3617)

Marine propulsion

Means to control the supply of energy responsive to a sensed...

C440S080000

Reexamination Certificate

active

07033234

ABSTRACT:
A method of steering a planning V-bottomed boat with double individually steerable outboard drive units with underwater housings (6), which extend down from the bottom (1) of the boat. When running at planning speed straight ahead, the underwater housings are set with “toe-in”, i.e. inclined towards each other with opposite angles (alpha) of equal magnitude relative to the boat centre line (b). When turning, the inner drive unit is set with a greater steering angle than the outer drive unit.

REFERENCES:
patent: 4040379 (1977-08-01), Betts
patent: 4846741 (1989-07-01), Betsinger
patent: 5575230 (1996-11-01), Eronen
patent: 5755605 (1998-05-01), Asberg
patent: 6783410 (2004-08-01), Florander et al.
patent: 2003/0139102 (2003-07-01), Florander et al.
Patent Abstracts of Japan, vol. 010, No. 388 (M549), Dec. 25, 1986 & JP 61 178294 A (Mitsubishi Heavy Ind Ltd), Aug. 9, 1986 abstract.

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