Casa Grande-class dock landing ship

Class overview
Name: Casa Grande
Builders:
Operators:
Preceded by: Ashland-class dock landing ship
Succeeded by: Thomaston-class dock landing ship
Planned: 19
Completed: 17
Cancelled: 2
Retired: 17
General characteristics
Type: dock landing ship
Displacement:
  • 4,032 tons (light)
  • 7,930 tons (seagoing)
Length:
  • 454 ft (138 m) at waterline
  • 457 ft 9 in (139.52 m) oa
Beam: 72 ft 2 in (22.00 m)
Draught: 15 ft 10 in (4.83 m)
Propulsion:
  • 2-shaft turbines, 2 boilers
  • 7,000 shp (LSD13-21 and 25-27)
  • 9,000 shp (LSD22-24)
Speed: 15.6 knots (18.0 mph; 28.9 km/h)
Range: 7,400 nmi (13,700 km) at 15 kn (28 km/h)
Boats & landing
craft carried:
  • One of the following arrangements:
    • 3 × LCT Mark V or VI or
    • 2 × LCT Mark III or IV or
    • 14 × LCM Mark III or
    • 41 × LVT or
    • 47 × DUKWs
Capacity: 1,500 tons of cargo (if not carrying boats)
Complement: 17 officers and 237 men
Armament:
  • 1 × 5"/38 guns
  • 12 × 40 mm Bofors guns (2 × 2), (2 × 4)
  • 16 × 20mm guns

The Casa Grande class was a class of dock landing ships used by the Royal Navy and the United States Navy during the Second World War. Nineteen ships were planned, but two, USS Fort Snelling and USS Point Defiance were cancelled before being completed.

Design

The 'Landing Ship Dock' or LSD developed from a British staff requirement for a type of self-propelled drydock to transport beaching craft over long distances, that would in turn deliver trucks and supplies onto the beach.[1] A flooding deck aft capable of holding either two of the larger British Landing craft tanks (LCTs) or three of the new US LCTs was included in the designs.[1] With the option of fitting extra decks, large numbers of vehicles could be transported, and loaded into landing craft via ramps. Despite an initial specification for a speed of 17 knots (20 mph; 31 km/h), the LSDs were capable of only 15.6 knots (18.0 mph; 28.9 km/h).[1]

Service

The British initially ordered seven of the class from US dockyards, numbered LSD-9 to 15.[1] Only four were delivered, numbers 9 to 12, while 13 to 15 were retained by the US Navy, which ordered another twelve to the design, but only built ten.[1][2] In total thirteen of the ships served with the US Navy, while four ships served with the Royal Navy.[1]

Ships

HMS Highway

Royal Navy

US Navy

Spanish Navy

Spanish ship Galicia (L-31), ex-USS San Marcos (LSD-25)

Greek Navy

Greek ship Okeanos (ex-HMS Oceanway (F143))

French Navy

French ship Foudre (ex-HMS Oceanway (F143), ex-Greek ship Okeanos)

Republic of China Navy

ROCS Chung Cheng (LSD-191) (ex-USS Comstock (LSD-19))

Notes

  1. 1 2 3 4 5 6 Gardiner (ed.). Conway's All the World's Fighting Ships, 1922–1946. p. 161.
  2. ↑ Fighting Ships of World War II. p. 304.

References

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