AircraftB-24A, LB-30BB-24A, LB-30BB-24A, LB-30BFamilyB-24 LiberatorClassHeavy bomberChangesFirst production airframe, ordered in 1939 before the XB-24 flew, with aerodynamic improvements over the prototype.Produced20Service193119321933193419351936193719381939194019411942194319441945United Kingdom · Atlantic≈ Sep 1941 – Dec 1943Modifications 2193119321933193419351936193719381939194019411942194319441945Liberator I20≈ Sep 1941 – Dec 1943B-24A