Airfoil jump ski

Details Airfoil jump ski Airfoil jump ski

1993-08-20

1995-11-07

Sotelo, Jesus D.

Buoys, rafts, and aquatic devices

Water skimming or walking device

Water ski

280609, B63B 100

Patent

active

054643589

ABSTRACT:
A thin top shell of aerodynamic contour is secured over a jump ski base smooth flow of air over the top of the ski during a jump, without interfering with the on-water performance of the base. The shell has a bulbous tip portion, a first portion of airfoil cross section aligned transversely of the ski in front of the central binding area of the ski, a second portion of airfoil cross section aligned transversely of the ski behind the binding area and a tail portion of airfoil cross section aligned longitudinally of the ski. The first and second airfoil cross sections have their thicker, more sharply curved sections disposed toward the inside edge of the ski, and the tail portion has its thicker, more sharply curved section disposed toward the front of the ski.

REFERENCES:
patent: 2716246 (1955-08-01), Billingham
patent: 3096530 (1963-07-01), Almgren
patent: 3501160 (1970-03-01), Lange
patent: 4083577 (1978-04-01), Ford
patent: 4795386 (1989-01-01), LaPoint

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