Trimaran with planing hull

Details Trimaran with planing hull Trimaran with planing hull

1985-03-05

1987-02-24

Basinger, Sherman D.

Ships

Displacement-type hull

Multiple hulls

114290, B63B 120

Patent

active

046448900

ABSTRACT:
A hull for a boat having a forward section with two twin subhulls or sponsons joined by a bridging structure which forms, approximately midway along the sponsons, the fore-end of a third subhull. The twin forward subhulls each have a modified W cross-sectional shape which is continued to a spoiler located near the mid-section of the hull. Water flowing past the undersides of the sponsons gives rise to a lifting action as the boat starts to move. The bottom of the central subhull runs downward and rearward between the sponsons but remains separated from them past the spoilers. In the rear section, the extension of the central subhull is deeper than the remainder of the hull and has a substantially flat bottom joined to sides inclined outwardly and upwardly to form a generally V cross-sectional shape. As the boat picks up speed, it merely rises in the water with little change of attitude until the aft part of the hull skims on the surface of the water. The combination of the W-shaped undersides of the sponsons and the mid region of the hull in which the sponsons are gradually merged with the central subhull gives rise to a smooth transition from a floating to a planing mode; and this transformation is accomplished at a relatively low speed.

REFERENCES:
patent: 3148652 (1964-09-01), Canazzi
patent: 3602179 (1971-08-01), Cole
patent: 3807337 (1974-04-01), English et al.
patent: 3937164 (1976-02-01), Austin
patent: 3996869 (1976-12-01), Hadley
patent: 4091761 (1978-05-01), Fehn

Affiliated with

Also associated with

Rating

Trimaran with planing hull does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trimaran with planing hull, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trimaran with planing hull will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-102694