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MAHAN CLASS DESTROYERS

 

The Mahan class were 18 standard fleet destroyers, all commissioned in 1936-1937. They had a new steam propulsion system, lighter and more efficient and soon a standard of USN destroyers. All Mahan class ships saw action in the Pacific, earning collectively 111 battle stars.

The Mahan class typically had a tripod foremast with a pole mainmast. To improve the anti-aircraft field of fire, their tripod foremast was constructed without nautical rigging. The Mahans were fitted with the first emergency generators. Gun crew shelters were built for the superimposed weapons, one shelter before the bridge and one atop the shelter deck aft.

The Mahan class destroyer's overall length was 341 feet 3 inches. They were powered by General Electric geared steam turbines that gave a maximum speed of 37 knots. Their wartime complement was approximately 250 officers and enlisted men.

In January 1945, as part of the anti-Kamikaze refit program, removal of the two waist torpedo tubes was authorized, providing enough weight margin to replace the two 40 mm twin mounts with quads. Ultimately only USS Lamson was modified to this configuration. In June, removal of the third centerline tube was authorized to make way for two 40 mm twin mounts abreast of the aft stack for a total of two quad and two twin mounts. All Oerlikons were removed except two mounts forward of the bridge, upgraded from singles to twins. Only Shaw received the twelve Bofors configuration, and when inclined after the refit she was found to be too top-heavy and had to land one of her 5-inch/38s. This largely negated the improved anti-aircraft armament and Commander Destroyers Pacific insisted she be reassigned to the Atlantic Fleet. All Mahan class ships receiving these AA modifications were to have additional directors installed with their new 40 mm mounts; these Mark 51s were to be replaced by new blind-firing GFFC Mark 63 installations with radar, but USS Shaw at minimum retained four Mark 51s.

There were some unique modifications to individual Mahan class destroyers, but the most noteworthy are the rebuilt USS Cassin and USS Downes. The original hulls were damaged beyond repair at Pearl Harbor and scrapped, but the machinery and main batteries were largely undamaged and installed in two new-built hulls at Mare Island. These rebuilt ships retained only two quadruple torpedo tubes (both mounted on the centerline above the main deck) and had six rather than five Oerlikons (four rather than three on the bridge), but otherwise had the same four 5-inch/38s and two twin Bofors of a typical Mahan class in 1943/1944. These ships also had a new British-style bridge like those being mounted on 5-inch destroyer escorts, rebuilt 1,850 ton "leaders", and the new Sumner class destroyers. These were also the only two Mahans to mount the Mark 37 director for their 5-inch guns.
 

USS Cassin (DD-372) was commissioned on April 21, 1937. After reconstruction, USS Cassin was fitted with a SC radar, a SG and Mk 12.22 radars. During World War II, Cassin served in the Atlantic theater, participating in the Neutrality Patrol, the invasion of North Africa, the invasion of Sicily, and the invasion of Italy. She also took part in the Normandy landings and the invasion of southern France.
Cassin was heavily damaged during the Normandy landings when she was hit by a German shore battery. She was repaired and returned to service in 1944. She earned six battle stars for her service during World War II. After the war,USS Cassin served as a training ship and was eventually decommissioned in 1946.

 

We accept commissions to build any ships of the Mahan class in two sizes: 28.5" long (1/144 scale) and A 41" long (1/100 scale). An USS Cassin model will be completed soon.
 

Learn more about the Mahan class ship here: https://en.wikipedia.org/wiki/Mahan-class_destroyer