Mid foil SWAS

Details Mid foil SWAS Mid foil SWAS

1994-12-01

1998-08-18

Swinehart, Edwin L.

Ships

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

Having hydrofoil

114265, B63B 124

Patent

active

057945586

ABSTRACT:
A high speed ship is disclosed which includes a hull structure having a bow portion and a stern portion with the hull being normally supported above the surface of the water when in operation. A forward strut depend from the bow portion of the hull structure and is subtended by a first transverse displacement foil. A set of midship dual struts depend from the hull structure aft of the forward strut; the aft dual struts are subtended by a second transverse displacement foil extending laterally between and connected to each of said struts. The second transverse displacement foil has a beam equal to or greater than its length and provides 70% or more of the major buoyancy for the ship during operation to maintain the hull above the surface of the water during operation. The forward foil provides less than 30% of the buoyancy of the vessel and has a beam less than the spacing between the aft struts.

REFERENCES:
patent: 3623444 (1971-11-01), Lang
patent: 4174671 (1979-11-01), Seidl
patent: 4919063 (1990-04-01), Hall et al.

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