South Korea’s Defense Acquisition Program Administration (DAPA) developed a “high speed interceptor craft” (HSIC) dubbed “Phantom” capable of reaching a top speed of 60 knots.
Specifications include:
- Displacement: 20 tons
- Length: 20 meters (65.6′)
- Beam: 4 meters (13.1′)
- Range: 300 nautical miles
- Crew of up to 12 plus 2 ton payload
Apparently, the high performance is made possible by carbon fiber composite construction. The US Coast Guard really doesn’t have anything of comparable length that I can compare it to, but we have had much smaller 35 foot “Long Range Interceptor” alluminum hull cutter boats that displaced 12 tons and 45 foot “Response Boat, Medium” boats that displaced 18.4 tons (light). (I don’t have current specs. This information from my nine year old Combat Fleets of the World.)
Bet the Vampire APKWS guided rocket system would fit on the cabin roof in place of the remote weapon station with 12.7 to 30mm gun.
Chuck Hill's CG Blog 