Landing Craft Support

Landing Craft Support
United States Navy, Lt. Erik Reynolds · Public domain · source
Name	Landing Craft Support
Type	Landing craft
Operator	United States Navy, Royal Navy, Royal Australian Navy
Builder	Various shipyards
Laid down	1940s
Launched	1940s
Fate	Various

Landing Craft Support Landing Craft Support were a class of small amphibious vessels employed during World War II and the early Cold War era for fire support during amphibious warfare operations such as the Allied invasion of Normandy, the Battle of Okinawa, and the Battle of Leyte Gulf. Designed to provide direct naval gunfire and close-in protection for infantry assault, these craft operated alongside amphibious vehicles, escort carriers, and destroyer escorts in contested littoral zones. Their development involved coordination between the United States Navy, the British Admiralty, and industrial concerns like Bethlehem Steel and Sun Shipbuilding to meet the demands of combined-arms operations in the Pacific Theater and the European Theatre of World War II.

Design and Specifications

The basic hull form derived from Landing Craft, Vehicle, Personnel designs and featured shallow draft, a bow ramp, and reinforced deck structure to support weapon mounts for engagements near beaches during Operation Torch and Operation Husky. Typical dimensions matched those of large landing craft produced by Jeffrey Manufacturing Company and Monmouth Shipbuilding, with displacement, length, beam, and draft tailored for operations in the Mediterranean Sea, English Channel, and the Philippine Sea. Propulsion systems used diesel engines supplied by firms such as General Motors and Fairbanks-Morse, providing speed and maneuverability essential for close fire missions in waters contested during the Battle of Iwo Jima and the Leyte campaign. Hull construction emphasized compartmentalization and damage control arrangements influenced by lessons from USS Cole (DD-155) style incidents and Convoy PQ 17 losses.

Armament and Modifications

Primary armament typically included multiple automatic guns adapted from Destroyer and Patrol Torpedo boat inventories, with common mounts derived from systems used on Escort Carrier escorts and Corvette classes. Weapons suites often combined 40 mm Bofors, 20 mm Oerlikon, and multiple .50 caliber machine guns, while some units received heavier firepower such as 3"/50 caliber guns taken from decommissioned Clemson-class destroyer stocks or modified Sloop ordnance. Modifications during Operation Overlord and Pacific operations added smoke generators influenced by tactics of Combined Operations and radar sets sourced from SCR-268 and SG radar programs to improve night engagements during actions like Operation Dragoon. Later cold-war refits introduced improved communications from AN/PRC-10 type inventories and stabilization measures developed alongside LST and LCI modernization efforts.

Operational History

Landing Craft Support units first saw extensive service in Operation Torch and the North African campaign, providing suppressive fire during landings at ports such as Algiers and Oran. In the Italian Campaign and during Operation Husky they supported assaults on beaches near Sicily and Salerno, coordinating with Royal Navy destroyers and Army assault formations drawn from 1st Infantry Division and 82nd Airborne Division. In the Pacific Theater they were integral to island-hopping operations including the Philippines campaign (1944–45), the Battle of Iwo Jima, and the Battle of Okinawa, working with Task Force 58, Seventh Fleet, and Underwater Demolition Teams to suppress enemy fortifications and conduct casualty evacuation. Postwar deployments placed craft in Korean War coastal operations, supporting Incheon landing style missions and coastal interdiction alongside United Nations Command naval forces.

Variants and Conversions

Variants included purpose-built LCS boats, conversions from Landing Craft Infantry and Landing Craft Mechanized hulls, and specialized adaptations such as rocket-equipped support craft used in Operation Forager. Some were converted into command and control platforms with fittings from Escort Destroyer control systems, while others were adapted into patrol craft in the Interwar period and early Cold War coastal surveillance programs. Experimental modifications paralleled developments in Naval Amphibious Doctrine and were tested during exercises with units like Fleet Marine Force and Amphibious Training Command, influencing later designs such as modern Mk V Special Operations Craft and Patrol Coastal craft.

Crews and Organization

Crews were typically small, drawn from United States Navy Reserve personnel, regular Royal Navy ratings, and in some cases Royal Australian Navy sailors, organized into divisions mirroring staffing patterns from Destroyer and Minesweeper complements. Command structures integrated with amphibious task groups under leaders from United States Pacific Fleet and Allied Naval Forces Mediterranean, often reporting to amphibious force commanders such as those from Amphibious Corps, Pacific Fleet and associated Marine Corps expeditionary units. Specialized roles onboard covered gunnery sourced from Naval Gunfire Liaison Party procedures, communications linked to Signal Corps doctrines, and medical aid provided in coordination with Fleet Hospital detachments during operations like Operation Cartwheel.

Preservation and Surviving Vessels

A few examples survive as museum exhibits and memorials in maritime collections managed by institutions such as the National Museum of the United States Navy, the Imperial War Museum, and regional naval museums in San Diego, Portsmouth, and Sydney. Preservation efforts involve partnerships with organizations like Naval Historical Foundation and volunteer groups modeled on USS Constitution Museum stewardship, focusing on hull restoration, ordnance safety, and historical interpretation related to operations including D-Day and Iwo Jima. Surviving hulls and artifacts contribute to public understanding alongside exhibits on LST-1-class landing ship, LCI(L), and other amphibious types.

Category:Amphibious warfare vessels