|
Entered service |
1976 |
|
Crew |
964 men |
|
Sea endurance |
? |
|
Dimensions and displacement |
|
Length |
249.9 m |
|
Beam |
31.8 m |
|
Draught |
? |
|
Displacement, standard |
39 400 tons |
|
Displacement, full load |
40 032 tons |
|
Propulsion and speed |
|
Speed |
24 knots |
|
Range |
? |
|
Boilers |
2 x ? |
|
Steam turbines |
2 x ? |
|
Cargo |
|
Troops |
1 900 men |
|
Vehicles |
up to 200 armored vehicles |
|
Cargo |
? |
|
Aircraft |
|
Fixed wing |
up to 8 x AV-8B Harriers II |
|
Helicopters |
up to 35 helicopters including CH-46 Sea
Knights, CH-53 Sea Stalions, AH-1W Super
Cobras, UH-1N Twin Hueys, V-22 Ospreys |
|
Armament |
|
Artillery |
2 x Phalanx 20-mm CIWS, 4 x 25-mm Bushmaster
cannons |
|
Missiles |
2 x 21-cell RAM launchers |
|
The Tarawa class LHA
ships were intended to combine the capabilities of the helicopter
carrier (LPH), the amphibious transport dock (LPD), the command ship
(LCC) and the amphibious cargo ship (LKA) in a single hull. The
class was originally to have numbered nine, but as a result of the
end of the Vietnam War and budgetary constraints, the eventual
number built was five. The Ingalls shipyard built them by means of
its multi-ship construction technique between 1971 and 1978.
The Ship's sides are vertical for some two-thirds of their length in
order to maximize the internal space available for cargo. An 82-m
long by 24 m wide hangar with a 6.1-m overhead is located above a
similarly sized well deck set into the stern. The hangar is served
by an 18 182-kg capacity side lift to port and a larger 36 364-kg
capacity centreline lift at the stern. The docking well, vehicle
deck, cargo holds and hangar deck are connected by a series of five
elevators capable of carrying 1 000-kg palletised loads. The three
forward elevators serve the vehicle deck and use a conveyor belt
system, while the aft two elevators (located at the other end of the
belt) serve both the well deck, where an overhead cargo-carrying
monorail system takes the pallets onto the landing craft, and the
hangar deck leads to the flight deck to allow direct loading of
helicopters.
Forward of the docking well (and connected to it and the flight deck
by ramps) are the vehicle decks. These normally accommodate 160
tracked vehicles, artillery pieces and trucks together with 40
AAV7A1 amphibious assault personnel carriers. The well deck can
accommodate up to four LCUs or two LCUs and two LCM 8s or 17 LCM 6s.
The four LCUs and eight of the AAV7A1s can be launched
simultaneously from the well deck. The vessels normally carry two
LCM 6s and two LCPLs stowed on deck for launch by a large deck
crane. The aircraft hangar has the capacity for 26 CH-46E Sea Knight
or 19 CH-53D Sea Stallion/CH53E Super Stallion helicopters, although
the normal air group embarked tends to be either 12 CH-45Es, six
CH-53D/Es, four
AH-1W Super Cobra gunships and two UH-1N Twin Huey
utility helicopters; or six CH-46Es, nine CH-53D/ES, four AH-1Ws and
two UH-1Ns. Both the
AV-8 Harrier series and the OV-10 Bronco
fixed-wing aircraft have also been operated, the former being a V/STOL
close-support fighter and the latter a STOL observation/attack
aircraft. A 464.5 m²
training and acclimatisation room is fitted for the 1
900-man reinforced US Marine battalion carried to exercise in a
controlled environment.
To act as an amphibious squadron flagship, the LHA is fitted with
the Tactical Amphibious Warfare Data System (TAWDS) to provide
command and control over the group's aircraft, weapons,
sensors and landing craft. The same satellite communications system
and data links as fitted to othe LCCs are carried. Two of the LHAs
are assigned to the Atlantic fleets while the other three are with
the Pacific fleets.
The Tarawa class formed the basis for the later
Wasp class amphibious assault ships.
|
Name |
Laid down |
Launched |
Commissioned |
Status |
| USS
Tarawa (LHA-1) |
1971 |
1973 |
1976 |
decommissioned |
| USS
Saipan (LHA-2) |
1972 |
1974 |
1977 |
decommissioned |
| USS
Belleau Wood (LHA-3) |
1973 |
1977 |
1978 |
decommissioned |
| USS
Nassau (LHA-4) |
1973 |
1978 |
1979 |
active, in
service |
| USS
Peleliu (LHA-5) |
1976 |
1978 |
1980 |
active, in
service |
|
Video of the Tarawa class
amphibious assault ship |
|
|