LPD-27 Portland

Country: United States

Class, [Type]: San Antonio, [LPD].

Builder: Ingalls Shipbuilding, Pascagoula, Mississippi, U.S.A.

Launch date: 13th March 2016.

Commission date: 14th December 2017.

Displacement ( tons ): 24.433 at full load.

Dimensions ( metres ): 208,4 x 32 x 7

Main machinery: 4 x turbocharged Colt-Pielstick PC2.5 STC 16-cyl. Diesels (41,600 hp); 2 x 5-bladed Bird-Johnson props.

Speed ( knots ): +22.

Complement: 363 ( 28 officers ) + 84 ( flag staff ).

Guns: 2 x Mk38 30mm Bushmaster II, 2 x Browning M2 12,7mm.

Missiles:  SAM: 2 x Mk31 Mod 0 launchers ( 42 x RIM-116A RAM missiles ).

Military lift: Vehicles: 2 x LCAC or 1 x LCU; Troops: 691 ( 66 officers ); fuel: 1.196m³ aviation fuel, 38m³ vehicle fuel.

Radar: Air Search: 1 x SPS-48E, 3D; Surface Search: 2 x SPS-73; Search and target designation: 1 x SPQ-9B.

Countermeasures: Decoys: 2 x Loral Hycor SRBOC Mk36 Mod. 12 (4 x Mk 137 launchers for infrared flares and chaff, 4 x Mk53 Nulka); Towed torpedo decoy SLQ-25A Nixie SSTD; SLQ-49 decoy buoy launch system; ESM/ECM: Raytheon SLQ32(V)2.

Helicopter: 2 x CH-53, or 4 x CH-46, or 2 x MV-22, or 4 x UH-1, or 1 x AV-8.

Callsign: NPLD ()

Comment: Three vehicle decks (3.234 square meters), two cargo/ammo magazines (708 square meters).

Homeport: San Diego.

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