The Consolidated B-24 Liberator was, designed by Consolidated Aircraft Company of San Diego, California. Its mass production was brought into full force by 1943 with the aid of the Ford Motor Company through its newly constructed Willow Run facility, where peak production had reached one B-24 per hour and 650 per month in 1944. The B-24 ended World War 2 as the most produced Allied heavy bomber in history, and the most produced American military aircraft at over 18,000 units. The B-24J was very similar to the B-24H, but shortages of the Emerson nose turret required use of a modified, hydraulically powered Consolidated A-6 turret in most J model aircraft built at Consolidated's San Diego and Fort Worth factories. The B-24J featured an improved autopilot and a bombsight. B-24H sub-assemblies made by Ford and constructed by other companies and any model with a C-1 or M-1 retrofit, were all designated B-24J. The J model was the only version to be built by all five factories involved in B-24 production. Total of 6,678 B-24J were produced.

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