Tag Archives: USNS Puerto Rico (T-EPF-11)

Puerto Rico

The U.S. Navy christened its newest Expeditionary Fast Transport (EPF), the future USNS Puerto Rico (T-EPF-11), during a 10 a.m. CST ceremony Saturday, November 10, at the Austal USA shipyard in Mobile, Alabama.

Navy Christened Expeditionary Fast Transport Puerto Rico
Navy Christened Expeditionary Fast Transport Puerto Rico

The principal speaker was congresswoman Jenniffer González-Colón, Resident Commissioner of Puerto Rico. Justice Sonia Sotomayor, Associate Justice of the Supreme Court of the United States served as the ship’s sponsor. In a time-honored Navy tradition, she christened the ship by breaking a bottle of sparkling wine across the bow.

«This ship honors the Commonwealth of Puerto Rico and the contributions Puerto Ricans have made to our nation and Navy and Marine Corps team», said Secretary of the Navy Richard V. Spencer. «USNS Puerto Rico will provide our commanders high-speed sealift mobility and agility and I am thankful for this ship, her crew, and our industrial force teammates whose service makes this great ship possible».

The future USNS Puerto Rico, designated T-EPF-11, will be the first active ship in naval service to honor the island in the West Indies east of Hispaniola. An Alaska class cruiser named Puerto Rico (CB-5) was authorized July 19, 1940, but construction was cancelled June 24, 1943.

With an all-aluminum shallow-draft hull, the EPF is a commercial-based catamaran capable of intra-theater personnel and cargo lift providing combatant commanders high-speed sealift mobility with inherent cargo handling capability and agility to achieve positional advantage over operational distances.

EPF class ships are designed to transport 600 short tons of military cargo 1,200 NM/1,381 miles/2,222 km at an average speed of 35 knots/40 mph/65 km/h. The ship is capable of operating in shallow-draft ports and waterways, interfacing with roll-on/roll-off discharge facilities, and on/off-loading a combat-loaded Abrams main battle tank (M1A2).

The EPF includes a flight deck for helicopter operations and an off-load ramp that will allow vehicles to quickly drive off the ship. EPF’s shallow draft (under 15 feet/4.57 meters) further enhances littoral operations and port access. This makes the EPF an extremely flexible asset for support of a wide range of operations including maneuver and sustainment, relief operations in small or damaged ports, flexible logistics support, or as the key enabler for rapid transport.

The EPF program delivered its ninth ship late last year, USNS City of Bismarck (T-EPF-9), with delivery of USNS Burlington (EPF-10) planned for mid-November. USNS Newport (EPF-12) are currently under construction at Austal’s shipyard.

 

SPECIFICATIONS

PRINCIPAL DIMENSIONS
Material Hull and superstructure – aluminium alloy
Length overall 103 m/337.9 feet
Beam overall 28.5 m/93.5 feet
Hull draft (maximum) 3.83 m/12.57 feet
MISSION BAY
Area (with tie-downs) 1,863 m2/20,053 feet2
Clear Height 4.75 m/15.6 feet
Turning diameter 26.2 m/86.0 feet
ISO TEU (Twenty Equivalent Units) Stations 6 Interface Panels
ACCOMMODATIONS
Crew 41
Single SR 2
Double SR 6
Quad SR 7
Troop Seats 312
Troop Berths Permanent: 104
Temporary: 46
Galley and Messing 48
PROPULSION
Main Engines 4 × MTU 20V8000 M71L Diesel Engines 4 × 9.1 MW
Gear boxes 4 × ZF 60000NR2H Reduction Gears
Waterjets 4 × Wartsila WLD 1400 SR
PERFORMANCE
Average Speed 35 knots/40 mph/65 km/h @ 90% MCR with 635 mt (700 st) payload
Maximum Speed 43 knots/50 mph/80 km/h without payload
Maximum Transit Range 1,200 NM/1,381 miles/2,222 km
Self-Deployment Range 5,600 NM/6,444 miles/10,371 km
Survival Through SS-7
AVIATION FACILITIES
NAVAIR Level 1 Class 2 Certified Flight Deck for one helicopter
Centreline parking area for one helicopter
NAVAIR Level 1 class 4 Type 2 Certified VERTREP (Vertical Replenishment)
Helicopter Control Station
AUXILIARY SYSTEMS
Active Ride Control Transcom Interceptors
Foils: 3.24 m2/34.9 feet2 each, forward on inboard sides of demi-hulls
Vehicle Ramp Articulated Slewing Stern Ramp
Straight aft to 45 Starboard
Telescoping Boom Crane 12.3 mt @ 15 m, 18.2 mt @ 10 m/13.6 Lt @ 49.2 feet, 20.1 Lt @ 32.8 feet

 

Ships

USNS Spearhead (EPF-1), Delivered

USNS Choctaw County (EPF-2), Delivered

USNS Millinocket (EPF-3), Delivered

USNS Fall River (EPF-4), Delivered

USNS Trenton (EPF-5), Delivered

USNS Brunswick (EPF-6), Delivered

USNS Carson City (EPF-7), Delivered

USNS Yuma (EPF-8), Delivered

USNS City of Bismark (EPF-9), Delivered

USNS Burlington (EPF-10), Christened

USNS Puerto Rico (EPF-11), Christened

USNS Newport (EPF-12), Under construction

T-EPF-13

T-EPF-14