Vessel hull and method for cruising at a high Froude number

Details Vessel hull and method for cruising at a high Froude number Vessel hull and method for cruising at a high Froude number

2007-01-30

2007-01-30

Avila, Stephen (Department: 3617)

Ships

Displacement-type hull

Multiple hulls

C114S061260

Reexamination Certificate

active

11447341

ABSTRACT:
In one aspect of the invention, a vessel has a liquid-plane greater than one meter2/(metric ton)2/3and includes a hull having a total length and a plurality of hull portions each having a length that is less than the total length. Each hull portion buoys the vessel. Each hull portion also protrudes above the liquid-line and includes a wetted area that does not contact the wetted areas of other hull portions when the boat accelerates through Froude numbers between 0.4 and 0.6. In addition, each hull portion includes a cross-sectional area having a perimeter defined by the edge of the wetted area and having an area defined by a plane that intersects the hull portion at the perimeter. The vessel's liquid-plane is the sum of each hull portion's cross-sectional area divided by the cube root of the square of the weight of the boat is at least one. When the vessel accelerates toward a cruising speed, the wetted area of each hull portion does not contact the wetted areas of the other hull portions, the vessel's hull experiences the maximum wave resistance at a lower speed than, and a maximum total resistance that is less than, a long, single hull providing the same buoyancy. Thus, the amount of power required to overcome the hump region and to cruise at a speed that generates a Froude number greater than 0.6 is less than conventional vessels having similar lengths and payload capacities.

REFERENCES:
patent: 3304899 (1967-02-01), Goodhue
patent: 5134950 (1992-08-01), Berte
patent: 5320056 (1994-06-01), Marinzoli
patent: 5592895 (1997-01-01), Schmidt
patent: 5787828 (1998-08-01), Barbier et al.
patent: 5794558 (1998-08-01), Loui
patent: 6487982 (2002-12-01), Takahashi et al.
patent: 6666160 (2003-12-01), Orneblad
patent: 7055446 (2006-06-01), Cobb et al.
patent: 2004/0112268 (2004-06-01), Maloney et al.
patent: 2004/0149196 (2004-08-01), Schmidt et al.

Affiliated with

Also associated with

Rating

Vessel hull and method for cruising at a high Froude number does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vessel hull and method for cruising at a high Froude number, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vessel hull and method for cruising at a high Froude number will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3788387