Abstract

A hydrofoil having an integrated yoke-bridge to preclude expansion of the channel defined by the yoke when the hydrofoil is secured to the cavitation plate. The single piece hydrofoil is secured to the cavitation by lateral screws passing through the hydrofoil and engaging the side of the cavitation plate. Additionally, one or two holes are optionally drilled through the single piece hydrofoil and through the cavitation plate followed by insertion of bolts passing through the hydrofoil and the cavitation plate.

IPC Classes  ?

• B63B 1/24 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type

Abstract

A hydrofoil having an integrated yoke-bridge to preclude expansion of the channel defined by the yoke when the hydrofoil is secured to the cavitation plate. The single piece hydrofoil is secured to the cavitation by lateral screws passing through the hydrofoil and engaging the side of the cavitation plate. Additionally, one or two holes are optionally drilled through the single piece hydrofoil and through the cavitation plate followed by insertion of bolts passing through the hydrofoil and the cavitation plate.

IPC Classes  ?

• B63B 1/24 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type

Abstract

A hydrofoil boat stabilizer having a cross-sectional area with the configuration of a true hydrofoil is provided. The hydrofoil includes a slip-on yoke designed to compressively fit on a cavitation plate of a boat motor lower drive unit. A yoke-bridge limits expansion of the channel defined by the yoke when the hydrofoil is secured to the cavitation plate. The wings of the hydrofoil include at least one angle of attack, and preferably, a plurality of angles of attack. The hydrofoil is shaped to reduce drag and minimize cavitation, A low-drag surface is included on at least a portion of the outer surface of the hydrofoil.

IPC Classes  ?

• B63B 1/24 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type

Abstract

An adjustable skeg has a body formed by sidewalls including a closed bottom or base. The sidewalls converge to form a leading edge and a trailing end. The top is generally open and the top and sidewalls define a cavity for receiving a skeg or stub. The skeg may also be of unitary construction with the lower drive unit/gear case of a boat motor. The top and bottom portions of the trailing end project rearwardly to form extensions beyond a central portion of the trailing end. A torque vane is pivotally mounted between the top and bottom extensions. The vane is pivotable to subtend a preselected angle with a respective sidewall for eliminating steering torque. A plurality of receivers is positioned on either the top or bottom extension for locking the vane in place following adjustment. The receivers are identified by respective indicia for calibrating adjustment of the torque vane.

IPC Classes  ?

• B63H 25/26 - Steering engines

Abstract

A hydrofoil boat stabilizer having a cross-sectional area with the configuration of a true hydrofoil is provided. The hydrofoil includes a slip-on yoke designed to compressively fit on a cavitation plate of a boat motor lower drive unit. The wings of the hydrofoil include at least one angle of attack, and preferably, a plurality of angles of attack. The hydrofoil is shaped to reduced drag and minimize cavitation. A low-drag surface is included on at least a portion of the outer surface of the hydrofoil.

IPC Classes  ?

• B63B 1/24 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type

Abstract

A boat stabilizer that is attachable to the anti-cavitation plate or other structure of the lower drive unit of a boat motor without permanently modifying the structure of the anti-cavitation plate or other structure is provided. The shape and size of the boat stabilizer causes the stabilizer to effectively harness and control the thrust energy generated by the propeller resulting in improved thrust and fuel efficiency. Due to various features, the drag associated with the boat stabilizer is kept to a minimum. Finally, decals and other decorative elements are integrally embedded into the top surface of the inventive boat stabilizer using in-mold decoration (“IMD”) technology which makes the elements resistant to ultra-violet light, virtually indestructible and highly appealing. A boat motor, a method of attaching a boat stabilizer to a boat motor and a method of molding a boat stabilizer having at least one decorative element integrally embedded in the top surface thereof are also provided.

IPC Classes  ?

• B63B 1/24 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type

Abstract

A boat stabilizer that is attachable to the anti-cavitation plate or other
structure of the lower drive unit of a boat motor without permanently
modifying the structure of the anti- cavitation plate or other structure is
provided. The shape and size of the boat stabilizer causes the stabilizer to
effectively harness and control the thrust energy generated by the propeller
resulting in improved thrust and fuel efficiency. Due to various features, the
drag associated with the boat stabilizer is kept to a minimum. Finally, decals
and other decorative elements are integrally embedded into the top surface of
the inventive boat stabilizer using in- mold decoration ("IMD") technology
which makes the elements resistant to ultra-violet light, virtually
indestructible and highly appealing. A boat motor, a method of attaching a
boat stabilizer to a boat motor and a method of molding a boat stabilizer
having at least one decorative element integrally embedded in the top surface
thereof are also provided.

IPC Classes  ?

• B63H 1/28 - Other means for improving propeller efficiency