USS Rankin (AKA-103)
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LCM - Landing Craft, Mechanized
LCM Model

Landing Craft, Mechanized (MARK 6) LCM(6)
A Higgins type LCM(3) with 6' added to the hull amidships. Other characteristics are similar to LCM(3), below.

Landing Craft, Mechanized (Mark 3) LCM(3)

Operational Use
Designed to land motor vehicles or one medium (30-ton) tank directly on a beach.
Description
Two designs are in use, the HIGGINS type constituting the majority. Recent changes include addition of machine guns and magnesyn compass, higher bulwark, and slight rearrangement aft.
Capacity
One 30-ton tank or 60,000 lb. of cargo, or 60 troops. BUREAU type (few in number) carries 120,000 lb. of cargo.
Endurance
850 miles @ 6 ¼ kts.; 500 miles @ 7 ¼ kts.; 140 miles @ fullspeed.
Speed, 8 kts. (loaded); 11 kts. (normal load).
Dimensions
Length, 50'0" overall.  Beam, 14' 1"
Displacement
Light, 52,000 lb. Draft, 3'0 forward, 4'0 aft. Loaded, 52 tons.
Armament
Two .50-caliber Machine Guns.
Armor
¼" HIS sides to control station. British are fitting bullet-proof mattresses.
Crew
4; coxswain, engineer, 2 crew
Propulsion
Two 110-225 hp. Diesels of different designs; twin screws.



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Click Here for information about a model LCM-3 that you can build

From ONI 226, Allied Landing Craft and Ships, published in June 1944 by the Division of Naval Intelligence:
LCM ONI 226
2/22/12
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