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Expeditionary Fast Transport (EPF)


Potential Operational Requirements and Characteristics for EPF Program



  American Bureau of Shipping (ABS) survey for unrestricted ocean service, and classed under ABS XA1, HSC Naval Craft, Circle E, OE, XAMS, XACCU, R2, NIBS, CRC in accordance with ABS Rules High Speed Naval Vessels.

o   Ramps and Cranes shall be in accordance with ABS Guide for the Certification of Lifting Appliances.

  For purposes of classifying the Mission Bay, the ABS HSNC guides for both vehicle deck (open or closed Roll-On/Roll-Off (RO/RO) space) and dry cargo space intended for the carriage of dangerous goods shall apply.

  While EPF can transport up to 312 troops, it is considered a Military Cargo Craft when applying requirements from IMO-High Speed Craft (HSC) Code.

Hull Form

  Shallow draft, high speed

Mission Flexibility

  Maximum allowable navigational draft less than 4.6m (15ft)

  Ability to operate in austere, un-improved ports un-assisted by tugs

o   Length less than 450ft

  Ability to transit Panama and Suez Canals

o   (Max beam 32.2m (106ft))

  Articulated slewing stern ramp from aft to 45 degrees for rapid on-load and off load of all vehicles and mobile cargo.

Mission Mobility

  Ability to lift 544mt (600 short tons) of embarked Personnel, Supplies, and Equipment (PSE) and transport it 1,200 nautical miles (nm) at an average speed of 30+ knots in sea state 3 (significant wave height of 1.25 meters (m)),

  Ability to self-deploy without embarked PSE, 4700 nm in open oceans at an average speed of 23 knots (typical sea states).

  Ability to survive in sea state 7 (significant wave height of 9m)

Operational Environment

  Meet mission and habitability requirements in external ambient air temperatures between minus 12.22C (10F) and 40.56C (105F) with a relative humidity of 50%, and with ambient sea water temperatures of minus 2.22C (28F) to 32.00C (90F).


  Freeze, Chill and Dry provisions sufficient for 146 personnel for 14 days at sea.

  25% of the year or more at speeds at or above 23 knots

Space, Weight, Power and Cooling (SWaP-C)

  Electrical system design will include an electrical power growth margin of at least 5% generating capacity

  Cable ways will provided a 5% volumetric margin for growth in electric and firber optic cable.

  20,295kg (44,744lbs) reserved for C4I equipment provided by Government.

RO/RO Deck Capability


  Provides a minimum square of 1,858m2 (20,000sqft) for the transport and tie-down of combat loaded vehicle anywhere within the space.

  Has a minimum unobstructed clear height of 4.72m (15.5ft).

  Provide a minimum unobstructed width to support a turning diameter of 26.21m (86ft)

  Deck Structure supports point loading from a HEMTT (M984 A2 Wrecker at 43.1mt (47.5 ST), an MTVR (MK23) at 26.2mt (28.9ST), an LVS (MK48) at 40.82mt (45.0 ST) as well as the distributed loads caused by tracked vehicles such as the Abrams Main Battle Tanks (A1A2) at 72.58mt (80.0 ST), during transits in all sea states.

  Provides a flush deck tie-down system on a 1.8m (6ft) grid, capable of withstanding a load of 310kN (70,000lbs) applied at a 45 degree angle.

  Provides Power and Data to a minimum of six ISO 20ft containers used as mission modules, refrigerated cargo stores and or morgues.

Deck Handling Equipment

  Capable of moving single ISO TEU container and similar loads weighing up to 12,247 kg (27,000 lbs) between the mission deck and flight deck in a single lift in a SS3.

  Capable of moving single TEUs and similar loads weighing up to 18,144 kg (40,000 lbs) between the RO/RO mission deck and pier in a single lift in SS1.

  Capable of launching and recovering a fully outfitted and manned 11 m RHIB.

o   If launched and recovered via ships crane then crane to be man rated in accordance with ABS Lifting Appliance Guide.

Accommodations and work spaces

2 singles with bath, 6 double with shared baths, 7 quad staterooms, plus necessary water closets and shower facilities for crew.

o   Total capacity for 42 crew

Office space and Lounge space with minimum square of 20m2 (215sqft ) and 15m2 ( 161sqft), respectively.

Bunkrooms for 104 embarked troops with necessary water closets and shower facilities for a mix gender mix of personnel.

Medical space for two ambulatory patients with minimum square of 20m2 (215sqft ).

Bosun locker and ships workshop with minimum square of 10m2 (108 sqft) each.

Embarked Force Seating Area

Airline style seating for 312 embarked troops

Troop baggage storeroom with minimum square of 20m2 (215sqft )

Galley and Messing

Single facility sized for 41 to 60 persons. Embarked personnel will eat in shifts.


Fully operable in open oceans, with ride control used to mitigate sea-sickness.

Survivable in Sea State 7 if unable to weather route.


Military Requirements and Characteristics for EPF Program


Equipped with a crew served weapons system consisting of a minimum of four weapon stations each equipped with one M2HB 0.50 caliber crew served machine gun, arranged around the perimeter of the vessels topside to provide an effective overlapping 360 degree field of fire in the horizontal plane with no obstructions.

Armory, ready service lockers and/or magazines for small arms ammunitions.



Flight deck and supporting aviation facilities for a single military rotor aircraft up to MH-53E in size.

Facilities certified by NAVAIR to Level 1 Class II (land, launch, refuel) as well as Level 4 Class 5 (vertical replenishment).

JP-5 storage of 16,000 gals minimum plus at least one service tank of 1000gal

Parking spot adjacent to flight deck for a folded SH-60.

Tactical Air Navigation System (TACAN), Advanced Stabilized Glide Slope Indicator (ASGSI) and dedicated Helo Control Space (HCS).


Secure ship/ship, ship/shore communication capability enabling ship to interoperate with Carrier and Expeditionary Strike Groups (CSG/ESG), as well as other fleet assets.

204m2 (2,200sqft) of combined operations and planning space.

Damage Control (DC)


RO/RO space protected from fires via a high expansion foam (HEF) system capable of filling space to 13ft-6in within two minutes of activation.

Flight deck protected via a Navy Standard AFFF system.

MSC standard Damage Control Lockers

External superstructure and sides capable of saltwater wash down via fire hoses to combat a chemical or biological threat.

Decontamination showers for personnel exposed to chemical or biological threat.

Fueling at Sea (FAS)


The vessel shall be capable of receiving two types of fuel; diesel fuel marine (DFM) via a 7in (178mm) hose, and aviation fuel (JP-5) via a 2-1/2 inch (63.5mm) hose, using a Navy standard tensioned replenishment alongside method at a single receive only station on the port side of the vessel.


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Page last modified: 28-09-2018 11:38:11 ZULU