An American in the RCAF with No. 424 Squadron, Jim Keys and crew flew “Dipsy Doodle” prior to completing most of their operations in “Gallopin Gerty”. Peter Engbrecht was the mid-upper gunner and Gordon Gillanders manned the rear turret. The two formed what was undoubtedly the most successful gunnery team in the Royal Canadian Air Force during World War II, accounting for nine “confirmed” and two “probable” enemy fighter aircraft. During a raid to Bourg-Leopold in Belgium on the night of 27/28 May 1944, “Dipsy Doodle” was attacked fourteen times by enemy night-fighters nearly all operating in threes. Two of the attacking fighters were shot down by Engbrecht and Gillanders.