- USCG transportable port security boat
The 25 ft. (8 m) Transportable Port Security Boat (TPSB): (AKA The Guardian) is a twin
outboard motor, open deck, all weather, high performance, moderately-armed platform capable of operating in inner harbor/near shore environments in light sea conditions. It was first built in FY97 by Boston Whalerin Edgewater, Florida, for the US Coast Guard, Maintenance and Logistic Command. The 25 ft. (8 m) TPSB is designed and configured to support PSUs as an inshore/harbor surface interdiction response asset in accordance with Required Operational Capabilities (ROC) and Projected Operational Environment (POE) for Coast Guard Port Security Units (PSU), COMDTINST 3501.49 (series). The basic design is based on the standard Boston Whaler 25 ft. (8 m) Guardian hull, customized to functionally suit the TPSB mission requirements. The basic craft arrangements consist of a centrally positioned control console and leaning post with an open work deck and low non-obstructive gunwhales. The TPSB is outfitted as a military gunboat with three (3) hardened weapon positions: (1) forward .50 caliber (12.7 mm) tri-pod, (2) gunwhale - mounted 7.62 mm M240B Machine Gun pipe pedestals, port and starboard.
*Length: 24 ft. 07 in. (7.5 m), 37 ft. 0 in. (11.3 m) on trailer engines tilted up
*Beam: 8 ft. 0 in. (2.4 m), 9 ft. 0 in. (2.7 m) on trailer
*Draft: 1 ft. 4 in. (406 mm) boat only, 3 ft. 3 in. (991 mm) engines down
*Maximum speed: 50 knots (93 km/h), 32 knots (59 km/h) with full load
*Engines: Evinrude 175 hp (130 kW) FICHT, each engine - Maximum power: 450 hp (336 kW)
*Fuel: 87 octane unleaded
*Fuel capacity: 171.3 US gallons (648 L)
*VRO capacity: (2) 2.5 US gallons (9.5 L)
*Propellers: Two, 3-bladed stainless, 17 in. (432 mm) pitch
*Transom height: 30 in. (760 mm)
*Boat weight: (empty hull) 3575 lb. (1622 kg)
*Boat weight (complete outfit): 5320 lb. (2413 kg)
*Total weight (persons, engines, gear): that boat will support 9000 lb. (4080 kg)
*Underway crew endurance: 8 hours out of 24
*Operating sea conditions: Designed to operate in condition of Sea state 3, 3.5 to 5 ft. (1 to 1.5 m) wave height. *Fully capable when operating in less than 2 ft (0.6 m) seas and under 30 knots (56 km/h) of wind.
*TPSB: may operate in up to 6 ft. (2 m) seas with a degraded mission capability.
*Operating wind conditions: Winds up to 30 knots (56 km/h) Max personnel capacity 12 2-4
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