초록 ▼

The Disclosure is concerned with lift and rudder fin attachments for outboard engines and inboard engines with outboard drives of the type used in the propulsion of boats. The attachments may be adjusted to vary the amount of lift that is produced under a given set of operating conditions, and they

The Disclosure is concerned with lift and rudder fin attachments for outboard engines and inboard engines with outboard drives of the type used in the propulsion of boats. The attachments may be adjusted to vary the amount of lift that is produced under a given set of operating conditions, and they also have the added advantage of greatly enhancing steering control at slow speeds and during slow speed operations such as trolling and docking.

대표청구항 ▼

A lift and rudder fin attachment for outboard engines and inboard engines with outboard drive, the said engines being for use in the propulsion of boats and of the class including a generally horizontal and longitudinally extending cavitation plate which is mounted above a propeller driven thereby,

A lift and rudder fin attachment for outboard engines and inboard engines with outboard drive, the said engines being for use in the propulsion of boats and of the class including a generally horizontal and longitudinally extending cavitation plate which is mounted above a propeller driven thereby, the said attachment including a pair of cooperating left and right adjustable fins having leading and trailing ends and inboard and outboard sides, first means for attaching said fins to said cavitation plate at points adjacent said leading ends and said inboard sides thereof, second means for attaching said fins to said cavitation plate at points adjacent said trailing ends and said inboard sides thereof, the said pair of fins extending outboard from their points of attachment to the cavitation plate and generally downward whereby the said pair of fins encompass at least the upper portion of the propeller in spaced relationship, the configuration of the said fins being such that the amount of lift provided thereby may be varied by generally horizontal adjustment thereof around the said first attaching means, and the said first and second attaching means including means for allowing the said fins to be adjusted by generally horizontal movement thereof around the said first attaching means to thereby vary the amount of lift provided thereby.