PORTLAND - 3/2001
ANCHORAGE CLASS: DOCK LANDING SHIPS (LSD)
IN SERVICE: 3
Name
No
Builders
Laid down
Launched
Commissioned
F/S
PORTLAND
LSD 37
General Dynamics, Quincy
21 Sep 1967
20 Dec 1969
3 Oct 1970
AA
Displacement, tons: 8,600 light; 13,700 full load
Dimensions, feet (metres): 553.3 × 84 × 20
(168.6 × 25.6 × 6)
Main machinery: 2 Foster-Wheeler boilers (Combustion Engineering in LSD 36); 600 psi (42.3 kg/cm2); 870ºF (467ºC); 2 De Laval turbines; 24,000 hp (18 MW); 2 shafts
Speed, knots: 22. Range, miles: 14,800 at 12 kt
Complement: 374 (24 officers)
Military lift: 366 troops (18 officers); 3 LCUs or 3 LCACs or 18 LCM 6 or 9 LCM 8 or 50 LVTs; 1 LCM 6 on deck; 2 LCPLs and 1 LCVP on davits. Aviation fuel, 90 tons
Guns: 2 General Electric/General Dynamics 20 mm/76 6-barrelled Vulcan Phalanx Mk 15 [Ref 1]; 3,000 rds/min combined to 1.5 km.
2 Bushmaster 25 mm Mk 38. 6-12.7 mm MGs.
Countermeasures: Decoys: 4 Loral Hycor SRBOC 6-barrelled Mk 36; IR flares and chaff to 4 km (2.2 n miles).
ESM: SLQ-32(V)1; intercept. May be updated to (V)2.
Combat data systems: SATCOM SRR-1, WSC-3 (UHF).
Radars: Air search: Lockheed SPS-40B [Ref 2]; E/F-band.
Surface search: Raytheon SPS-10F [Ref 3]; G-band.
Navigation: Raytheon SPS-64(V)9; I-band.
Helicopters: Platform only.
Structure: Helicopter platform aft with docking well partially open; helicopter platform can be removed. Docking well approximately 430 × 50 ft (131.1 × 15.2 m). Two 50 ton capacity cranes. 3 in guns have been removed.
Operational: One of the class paid off in February 1998 and one in mid-1999.
Sales: One to Taiwan in 2000. Plans for future sales under consideration.
Displacement Full Load (tonnes): 13919.2
Length (m): 168.6
Beam (m): 25.6
Draught (m): 6
Range (nm): 14800
Speed (knots): 22
ASHLAND - (Scale 1 : 1,500)
WHIDBEY ISLAND CLASS (DOCK LANDING SHIPS) (LSD and LSD-CV)
IN SERVICE: 8
HARPERS FERRY CLASS (DOCK LANDING SHIPS) (LSD and LSD-CV)
IN SERVICE: 4
Displacement, tons: 11,125 light; 15,726 (LSD 41-48 ), 16,740 (LSD 49 onwards) full load
Dimensions, feet (metres): 609.5 × 84 × 20.5
(185.8 × 25.6 × 6.3)
Main machinery: 4 Colt SEMT-Pielstick 16 PC2.5 V 400 diesels; 37,440 hp(m) (27.5 MW) sustained; 2 shafts; cp props
Speed, knots: 22. Range, miles: 8,000 at 18 kt
Complement: 340 (21 officers)
Military lift: 500 troops; 2 (CV) or 4 LCACs, or 9 (CV) or 21 LCM 6, or 1 (CV) or 3 LCUs, or 64 LVTs. 2 LCPL
Cargo capacity: 5,000 cu ft for marine cargo, 12,500 sq ft for vehicles (including four preloaded LCACs in the well-deck). The 'cargo version' has 67,600 cu ft for marine cargo, 20,200 sq ft for vehicles but only two or three LCACs. Aviation fuel, 90 tons.
Missiles: 1 or 2 GDC/Hughes Mk 49 RAM [Ref 1]; passive IR/anti-radiation homing to 9.6 km (5.2 n miles) at 2 Mach; warhead 9.1 kg. Being fitted in all.
Guns: 2 General Electric/General Dynamics 20 mm/76 6-barrelled Vulcan Phalanx Mk 15 [Ref 2]; 3,000 rds/min (4,500 in Block 1) combined to 1.5 km.
2-25 mm Mk 38. 8-12.7 mm MGs.
Countermeasures: Decoys: 4 Loral Hycor SRBOC 6-barrelled Mk 36 and Mk 50; IR flares and chaff. SLQ-25 Nixie.
ESM: SLQ-32(V)1 or (V)2; intercept. SLQ-49.
Combat data systems: SATCOM SRR-1, WSC-3 (UHF) (see Data Systems at front of section). SSDS Mk 1 being fitted.
Radars: Air search: Raytheon SPS-49(V)5 [Ref 3]; C/D-band.
Surface search: Norden SPS-67V [Ref 4]; G-band.
Navigation: Raytheon SPS-64(V)9; I/J-band.
Tacan: URN 25. IFF: Mk XII UPX-29/UPX-36.
Helicopters: Platform only for 2 CH-53 Sea Stallion.
Programmes: Originally it was planned to construct six ships of this class as replacements for the 'Thomaston' class LSDs. Eventually, the level of 'Whidbey Island' class ships was established at eight, with four additional cargo-carrying variants of that class to be built to provide increased cargo-carrying capability. The first cargo variant, LSD 49, was authorised and funded in the FY88 budget; LSD 50 in FY89 and LSD 51 in FY91. The fourth was authorised in FY92 but not ordered until 12 October 1993.
Modernisation: A Quick Reaction Combat System (QRCC)/Ship Self-Defense System (SSDS) was installed and successfully demonstrated in LSD 41 in 1993. During the QRCC demonstrations, the ship's SPS-49, SLQ-32, RAM and Phalanx were successfully integrated via SSDS. All ships of the class to have been fitted with SSDS Mk 1.
Structure: Based on the earlier 'Anchorage' class. One 60 and one 20 ton crane. Well-deck measures 440 × 50 ft (134.1 × 15.2 m) in the LSD but is shorter in the Cargo Variant (CV). The cargo version is a minimum modification to the LSD 41 design. Changes in that design include additional troop magazines, air conditioning, piping and hull structure; the forward Phalanx is forward of the bridge, RAM is on the bridge roof, and there is only one crane. There is approximately 90 per cent commonality between the two ships.
Operational: LSDs 42 and 43 are based at Sasebo.
Name
No
Builders
Laid down
Launched
Commissioned
F/S
ASHLAND
LSD 48
Avondale Industries
4 Apr 1988
11 Nov 1989
9 May 1992
AA
KEARSARGE 9/1995
BATAAN 2/1996
WASP CLASS: AMPHIBIOUS ASSAULT SHIPS (LHD)
WASP CLASS: AMPHIBIOUS ASSAULT SHIPS (LHD)
ACTIVE: 6
BUILDING: 1
PROPOSED: 1
Name No Builders Laid down Launched Commissioned F/S
WASP LHD 1 Ingalls Shipbuilding 30 May 1985 4 Aug 1987 29 July 1989 AA
ESSEX LHD 2 Ingalls Shipbuilding 20 Mar 1989 4 Jan 1991 17 Oct 1992 PA
KEARSARGE LHD 3 Ingalls Shipbuilding 6 Feb 1990 26 Mar 1992 16 Oct 1993 AA
BOXER LHD 4 Ingalls Shipbuilding 8 Apr 1991 13 Aug 1993 11 Feb 1995 PA
BATAAN LHD 5 Ingalls Shipbuilding 22 June 1994 15 Mar 1996 20 Sep 1997 AA
BONHOMME RICHARD LHD 6 Ingalls Shipbuilding 18 Apr 1995 14 Mar 1997 15 Aug 1998 PA
IWO JIMA LHD 7 Ingalls Shipbuilding 12 Dec 1997 Sep 1999 Feb 2001 Bldg
Displacement, tons: 28,233 light; 40,532 full load
Dimensions, feet (metres): 844 oa; 788 wl × 140.1 oa; 106 wl × 26.6 (257.3; 240.2 × 42.7; 32.3 × 8.1)
Flight deck, feet (metres): 819 × 106 (249.6 × 32.3)
Main machinery:2 Combustion Engineering boilers; 600 psi (42.3 kg/cm2); 900ºF (482ºC); 2 Westinghouse turbines; 70,000 hp (52.2 MW); 2 shafts
Speed, knots: 22
Range, miles: 9,500 at 18 kt
Complement: 1,077 (98 officers)
Military lift: 1,870 troops; 12 LCM 6s or 3 LCACs; 1,232 tons aviation fuel; 4 LCPL
Missiles: SAM: 2 Raytheon GMLS Mk 29 octuple launchers [ref 1]; 16 Sea Sparrow; semi-active radar homing to 14.6 km (8 n miles) at 2.5 Mach; warhead 39 kg.
2 GDC Mk 49 RAM; 21 rounds per launcher [ref 2]; passive IR/anti-radiation homing to 9.6 km (5.2 n miles) at 2 Mach; warhead 9.1 kg. Being fitted forward of GMLS and at the stern.
Guns: 2 or 3 General Electric/General Dynamics 20 mm 6-barrelled Vulcan Phalanx Mk 15 [ref 3]; 3,000 rds/min (4,500 in Batch 1) combined to 1.5 km.
3-25 mm Mk 38. 4 or 8-12.7 mm MGs.
Countermeasures: Decoys: 4 or 6 Loral Hycor SRBOC 6-barrelled fixed Mk 36; IR flares and chaff to 4 km (2.2 n miles).
SLQ-25 Nixie; acoustic torpedo decoy system. NATO Sea Gnat. SLQ-49 chaff buoys. AEB SSQ-95.
ESM/ECM: SLQ-32(V)3/SLY-2; intercept and jammers. Raytheon ULQ-20.
Combat data systems: ACDS Block 1 level 2 (LHD 1) and Block 0 (in remainder). Integrated Tactical Amphibious Warfare Data System (ITAWDS) and Marine Tactical Amphibious C2 System (MTACCS). Links 4A, 11 (modified), 14 and 16. SATCOMS [ref 4] SSR-1, WSC-3 (UHF), USC-38 (EHF). SMQ-11 Metsat (see Data Systems at front of section).
Weapons control: 2 Mk 91 MFCS. SYS-2(V)3 IADT.
Radars: Air search: ITT SPS-48E [ref 5]; 3D; E/F-band.
Raytheon SPS-49(V)9 [ref 6]; C/D-band.
Hughes Mk 23 TAS [ref 7]; D-band.
Surface search: Norden SPS-67 [ref 8]; G-band.
Navigation: SPS-64(V)9; I-band.
CCA: SPN-35A and SPN-43B. SPN-46 in due course.
Fire control: 2 Mk 95; I/J-band.
Tacan: URN 25. IFF: CIS Mk XV UPX-29.
Fixed-wing aircraft: 6-8 AV-8B Harriers or up to 20 in secondary role.
Helicopters: Capacity for 42 CH-46E Sea Knight but has the capability to support: AH-1W Super Cobra, CH-53E Super Stallion, CH-53D Sea Stallion, UH-1N Twin Huey, AH-1T Sea Cobra, and SH-60B Seahawk helicopters.
Programmes: Eighth of class partially funded by Senate intervention. Final decision in FY2000.
Modernisation: LHD 3 has been fitted with a RAM launcher forward of the GMLS. Being retrofitted in all vice the forward Phalanx, which may be moved to the bridge roof and at the stern. LHD 5 and 6 have the SPS 52 radar mounted on the cross trees at the head of the foremast and RAM fitted on build.
Structure: Two aircraft elevators, one to starboard and aft of the `island' and one to port amidships; both fold for Panama canal transits. The well-deck is 267 × 50 ft and can accommodate up to three LCACs. The flight deck has nine helicopter landing spots. Cargo capacity is 101,000 cu ft total with an additional 20,000 sq ft to accommodate vehicles. Vehicle storage is available for five M1 tanks, 25 LAVs, eight M 198 guns, 68 trucks, 10 logistic vehicles and several service vehicles. The bridge is two decks lower than that of an LHA, command, control and communication spaces having been moved inside the hull to avoid `cheap kill' damage. Fitted with a 600 bed capacity hospital and six operating rooms. HY-100 steel covers the flight deck. Nine 32 ft monorail trains each carrying 6,000 lbs, deliver material to the well-deck at 6.8 mph.
Operational: A typical complement of aircraft would be a mix of 30 helicopters and six to eight Harriers (AV-8B). In the secondary role as a sea control ship the most likely mix is 20 AV-8B Harriers and four to six SH-60B Seahawk helicopters.