Question: Was RAF bomber was first flown at Bicester Airfield?
Sentence (from "Bicester Airfield"): Dating back to 1916, this military airfield is notable as the location of the first flight of the prototype Handley Page Halifax in 1939 and was later the home of No. 71 Maintenance Unit, RAF (Royal Air Force); the RAF finally left in 2004.
Relevant evidence: No