Navy Recognition has a story on the Navy’s planned 60 foot “Combatant Craft, Medium” or CCM.
Characteristics as follows:
CCM Mk1 main characteristics (as provided by USSOCOM):
Length: approximately 60’
Range: 400 nautical miles
Payload: 7750 lbs.
Passengers: up to 19
Engine: Twin forced induction diesel engines driving props
Hull: Double step hull made of aluminum
See the story linked above for more photos and details.