Stepped hydroplane hull

Details Stepped hydroplane hull Stepped hydroplane hull

1991-05-24

1993-03-09

Peters, Jr., Joseph F.

Ships

Hull or hull adjunct employing fluid dynamic forces to...

Stepped hull

114292, B63B 120

Patent

active

051918536

ABSTRACT:
A hydroplane hull according to the present invention comprises a forebottom surface and an afterbottom surface connected by a step. The afterbottom surface has an aft portion formed with a positive trim angle and a forward portion with a non-negative trim angle which is of lesser angle than that of the aft portion.

REFERENCES:
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patent: 2181875 (1939-12-01), Diehl
patent: 2909140 (1959-10-01), Kiekhaefer
patent: 3661109 (1972-05-01), Weiland
patent: 4356787 (1982-11-01), Harley
patent: 4509927 (1985-09-01), Ikeda
Offshorer Marine Catalog (Italy, date unknown).
L. Benen, "General Resistance Test of a Shallow Step Planing Hull . . . ", NSRDC Report 2169, May 1966.
L. Benen, "General Resistance Test of a Stepped Planing Hull With . . . ", NSRDC Report 2320, May 1967.
E. P. Clement, "The Design of Cambered Planing Surfaces for Small Motorboats", NSRDC Report 3011, Mar. 1969.
J. B. Parkinson, "Tank Tests of a Model of a Flying-Boat Hull Having a . . . ", NACA Technical Note 545.
NACA Technical Note 551.
NACA Technical Note 563.
"Skater", Powered Offshore Racing Catamaran.
Photo of Speedboat "Miss England III".

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