Hybrid catamaran HSV 2 SWIFT, seen at the Incat shipyard in Hobart, Tasmania, Australia. 19/01/2014.
The HSV is an acronym for "High Speed Vessel".

HSV 2 SWIFT was privately owned and operated by the American shipping company Sealift Inc. She was chartered to the United States Navy Military Sealift Command and was primarily used for fleet support and humanitarian partnership missions.

In July 2013, HSV 2 SWIFT returned to her builder Incat in Hobart for a refit and is now available for sale.

HSV 2 SWIFT

Type: Logistics Naval Vessel
Flag: USA | Home Port: Naval Amphibious Base, Little Creek, Norfolk, Virginia | Call Sign: WDE6487
IMO: 9283928 | MMSI: 367380870
Owner: Sealift Inc.
Designer: Revolution Design Pty. Ltd.
Year Built: 2003 | Country of Build: Australia | Builder: Incat Tasmania Pty. Ltd. | Location of Yard: Hobart
Hull Material: Aluminium
GRT: 5936 | DWT: 627
LOA: 97.22 m | Length Waterline: 92 m | Beam Overall: 26.6 m | Beam of Hulls: 4.50 m | Draught: 3.43m
Capacity: Approximately 605 long tons (615 t) | Cargo Deck: Approximately 28,740 sq ft (2,670 m2)
Helicopter Deck: 24.7 m x 15.24 m (81’ long x 50’wide) certified to Level I Class 2A. (Fuel storage and on-deck refueling included) for MH-60S, CH-46, UH-1 and AH-1 helicopters.
Total Persons: 353 maximum
Armament: 4 × .50 caliber M2 Browning machine gun mounts
Propulsion: Caterpillar 3618 marine diesel engines
Speed: approx 38.0 knots @ 627 tonnes deadweight, approx 42.0 knots @ 300 tonnes deadweight

For those who may be interested, more details on HSV 2 SWIFT can be found at:

http://en.wikipedia.org/wiki/HSV-2_Swift
http://www.naval-technology.com/projects/hsv-2-swift/
http://www.incat.com.au/domino/incat/incatweb.nsf/v-title/HSV%202%20Swift?OpenDocument