# US 9,517,813 B2 · Hybrid monohull planing vessels

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- Number: US 9,517,813 B2
- Document ID: US9517813B2
- Status: Granted
- Kind: B2
- Application number: 14/811,333
- Filed: 2015-07-28
- Published: 2015-11-19
- Granted: 2016-12-13
- Earliest claimed: 2012-12-21
- Assignees: Brunswick Corporation
- Applicants: Mark George Hotary; Frederick Charles Herrington
- Inventors: Mark George Hotary; Frederick Charles Herrington
- Web page: https://patentgrep.com/patent/US9517813B2

## CPC

- B63B 1/20: having more than one planing surface (B63B1/22 takes precedence)
- B63B 1/042: {the underpart of which being partly provided with channels or the like, e.g. catamaran shaped}
- B63B 2001/005: {Deflectors for spray, e.g. for guiding spray generated at the bow of a planing vessel underneath the hull}
- B63B 2001/186: {Sponsons; Arrangements thereof}
- B63B 2001/201: {divided by longitudinal chines}
- B63B 2001/203: {arranged in semi-catamaran configuration}
- G02F 1/13336: {Combining plural substrates to produce large-area displays, e.g. tiled displays}
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

A hull form design which incorporates bi-lateral semi-sponsons disposed on either side of a non-stepped V-shaped center hull section. The semi-sponsons extend the entire length of the hull form and comprise protrusions extending away from the center section. The semi-sponsons are delimited by longitudinal steps extending below the hull bottom an equal distance from the centerline on opposite sides of the hull. This design is a hybrid of conventional “V” hulls and catamarans and improves the roll and turn initiation time of convention monohull designs.

## Claims

### Claim 1

A vessel hull form, comprising:
a non-stepped V-shaped center section extending along the entire length of said hull form;
two semi-sponsons comprising projections extending away from said center-section and disposed along the length of said hull form on either side of said center section;
said center section and said semi-sponsons each defining a running surface for said hull form; and
wherein said semi-sponsons provide buoyancy and hydrodynamic lift for said hull-form.

### Claim 2 (depends on 1)

The vessel hull form of claim 1, wherein said center section and each of said semi-sponsons are delimited by a longitudinal step extending along the entire length of said hull form.

### Claim 3 (depends on 2)

The vessel hull form of claim 2, said longitudinal steps are disposed at a constant transverse distance from said center section along the entire length of said hull form.

### Claim 4 (depends on 2)

The vessel hull form of claim 2, wherein said longitudinal steps have a height that is at least 5% of the width of said hull form.

### Claim 5 (depends on 1)

The vessel hull form of claim 1, wherein the width of each semi-sponson is at least 10% of the width of said hull form.

### Claim 6 (depends on 1)

The vessel hull form of claim 1, wherein the maximum width of each semi-sponson is maintained for at least 70% of the entire length of said semi-sponson.

### Claim 7 (depends on 1)

The vessel hull form of claim 1, wherein said semi-sponson has a deadrise angle of at most 25 degrees.