Wide-keeled boat hull with multiple, straight line planing surfa

Details Wide-keeled boat hull with multiple, straight line planing surfa Wide-keeled boat hull with multiple, straight line planing surfa

1975-09-24

1977-05-10

Blix, Trygve M.

Ships

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

114 56, B63B 118

Patent

active

040221431

ABSTRACT:
A high speed planing boat hull including a transom stern, freeboard side portions and a wide-keeled lower hull portion which comprises keel sidewalls forming steep relatively constant deadrise angles, and keel bottom surfaces which are flat at the transom and progress forwardly to form shallow deadrise angles. First steps having shallow deadrise angles are located adjacent the keel sidewalls, second steps having similar deadrise angles are located adjacent the side portions, and risers having steep deadrise angles interconnect the first and second steps.

REFERENCES:
patent: D230258 (1974-02-01), Allison
patent: 3040687 (1962-06-01), Huet
patent: 3363598 (1968-01-01), Mortrude
patent: 3415213 (1968-12-01), Nemetz

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