PHM - Pegasus Class
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Length Overall -
147' foils retracted, 131.5' foils extended
Max Beam
--28'
Full Load Displacement -
242tons
Light Load Displacement -
198 tons
Draft -
6' foils retracted, 23' foils extended
Speed -12kts hullborn,40kts foilborn
Main Engines - two Mercedes-Benz; 1636 bhp: 2 waterjets
hullborne, 1 gas turbine (GE); 16767 shp: 1 waterjet foilborn
Crew -
23 (4 officers+ 19 enlisted)
Missiles- 8 Harpoon SSM (2 quad cannisters Mk141)
Guns - 1 76-mm 62cal AA Mk75
Fire Control - 1 Mk 92 weapon FCS except Mk94 in PHM1
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Patrol Combat Missile Hydrofoil
Design: The PHM design provides for fully submerged canard foils,
with approximately 32 percent of the dynamic lift provided by the single
bow foil and 68 percent by the double-strut after foil. The foils retract
forward (into a bow recess) and rearward, respectively. Steep flaps are
fitted to the trailing edges of the bow and after foils to provide control
and lift augmentation. The superstructure is all aluminum.
Engineering: Foilborne propulsion consists of a single
waterjet driven through reductions gears from an LM2500 turbine engines.
The foilmounted propulsor is capable of pumping 141,000 gallons per
minute. Foilborne speeds exceeding 40 knots are possible in 8 - 13 foot
seas. When hullborne the PHM is propelled by twin waterjets powered by two
MTU V-8 diesel engines. Each of the waterjets can pump 30,000 gallons per
minute. A through-bow thruster is provided for low-speed maneuvering.
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