The Heavy Conversion Unit (HCU) trained bomber crews who had finished an Operational Training Unit to fly the four-engined heavy bombers (Stirling, Halifax and Lancaster) before they joined a squadron.
Unit Accident Records: 1657 HCU 1657 Heavy Conversion Unit RAF ()
No Crash Cards Found
Unit Casualtues: 1657 HCU 1657 Heavy Conversion Unit RAF (9)
