The Casa Grande class was a class of landing ship dock(LSD) used by the Royal Navy and the United States Navy during the Second World War.
The LSD concept was developed from a British staff requirement for a type of self-propelled drydock to transport beaching craft over long distances.
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. Later, a landing deck for helicopters was added and the class was transformed in landing platform docks (LPD).
The USS San Marcos LSD 25 was laid down in 1944 an served the US Navy until 1971, when she was transferred to the Spanish Armada.
She was decomissioned in 1988 and scrapped in 1989.
A Bell 212 was the most common helicopter carried by the ship.
Original model by Lazarus, adapted and uploaded with permission by Antonio Díaz and Alberto García. (jagl04
