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TPB-86 | Naval Special Warfare RIB | Overview
SeaArk Marine of Monticello, Arkansas builds a complete line of Hunt-designed aluminum commercial and military boats, 18-85 feet. All share the Hunt Deep-V hulls designed especially for the particular requirements of offshore patrol, law enforcement, rescue and reliable personnel transport. Customers include the US Navy, US Army Corps of Engineers, US Coast Guard, several state agencies and private operators.
This 86 foot patrol boat, built more than 20 years ago, was a break-through design, combining the rugged sea-keeping of the Hunt Deep-V with diesel waterjets and all fiberglass construction. This boat handles the roughest of sea conditions offshore with confidence and can patrol rivers and shallow coastal regions without fear of running aground. Its unique combination for a 3'8" draft, three waterjets and lightweight but strong composite construction make it fast and versatile. The result is a fine all-purpose patrol vessel that can achieve 30 knots with only 3,000 HP and operate in deep or shallow water, smooth or rough conditions, with stability and confidence.
| Type |
86 ft. Triple diesel/waterjet patrol boat |
| Model Tests |
Davidson Laboratory
Stevens Institute of Technology
Hoboken, New Jersey |
| Dimensions |
Length Overall 86'-0"
Length Waterline 74'-2"
Beam 20'-8"
Draft 3'-8"
Displacement 120,000 lbs |
| Power |
3 Isotta Fraschini
Type ID 36 SS 8V
BHP 3,150 HP@1,900 rpm
Waterjets (3) x Castoldi No. 7
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| Speed |
Cruising 25 knots
Maximum 30 knots |
| Genset |
12kw Northern Lights |
| Fuel Capacity |
4,750 USG |
| Water Capacity |
670 USG |
| Construction |
Composite fiberglass hull
and deck |
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Naval Special Warfare RIB
Willard Marine, Inc. Anaheim, California, under contract from the U.S. Special Operations Command (USSOCOM), designed and constructed a new generation 36' Naval Special Warfare Rigid Inflatable Boat (NSW Rib). Delivery was made to USSOCOM Headquarters at MacDill AFB, Tampa, Florida, where the craft underwent 150 days of intensive testing.
The mission of the NSW RIB is to transport a team of eight SEALS from an over-the-horizon ship to mission, usually on shore, and to return them to the ship. The vessels are assigned to Special Boats Units, who provide highly trained crews of three for these special operations. Propulsion is twin Hamilton waterjets driven with Cummins diesel engines.
Willard Marine, Inc. teamed with C. Raymond Hunt Associates, Inc., Naval Architects, Boston, MA, to develop the NSW RIB with the overriding objective to deliver the SEAL team to their mission in the best physical condition as possible through rough seas over long distances. Starting with a highly perfected deep-V hull (Hunt created the original high-deadrise, deep-V designs in the 1960's), the SEALs are seated aft across the transom area where the vertical accelerations are the lowest in elevated Sea States. Installed for the SEALs and the boat crew are anatomically correct high performance seat/bolster units developed by Stidd Systems, Inc.
Variations of this design are now replacing old General Purpose Boats on many U.S. Navy vessels.
| Type |
36' LOA x 11'-8" BOA (9'-3" BOA with sponsons deflated for aircraft transport) |
| Speed |
38 knots full load;
range 175 km at 32 knots |
| Operation |
Operational environment of Sea States 0 through 5 |
| Crew |
Crew of three plus eight passengers and cargo |
| Displacement |
16,000 pounds, with payload of 3,200 pounds |
| Power |
Twin Cummins 6BTA diesel engines @355 hp each from Cummins Cal Pacific, Inc.
Twin Hamilton 273 Waterjets from Boatswain's Locker, Inc |
| Trailer |
Special trailer by Myco for aircraft loading, and launch recovery |
| Seating |
Stidd Systems |
| Construction |
Fiberglass/cored construction to ABS standards.
Vinylester Fire-retardant resin by Ashland Chemical.
Hypalon/neoprene sponsons By Demaree Inflatables |
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