In October 1942, this Heinkel He 100D-4 Trop (Werknummer unknown) was found on Martuba airfield (LG 4). It was restored to flying condition by mechanics of 3 Squadron RAAF and given the serial number HK849. The plane received standard RAF camouflage used for planes in Africa: Dark Earth and Middle Stone on upper surfaces and sides, lower surfaces were painted with Azure Blue.
This He 100 was flown on 2 November 1942 by Squadron Leader Bobby Gibbes. Robert Henry Maxwell (Bobby) Gibbes DSO, DFC & Bar, OAM was a leading Australian fighter ace of World War II. He was officially credited with shooting down 10¼ enemy aircraft, although his score is often reported as 12 destroyed. Born in rural New South Wales, Gibbes worked as a jackaroo and salesman before joining the Royal Australian Air Force (RAAF) in February 1940. Posted to the Middle East in May 1941, he became commanding officer of No. 3 Squadron RAAF during the North African campaign, where his leadership and fighting skills earned him the Distinguished Service Order and the Distinguished Flying Cross and Bar. Besides Gibbes, 'Dora' was also flown by Flight Lieutenant Ron Watt. On 8 December 1942, HK849 was handed over to Gazala where it was piloted mainly by Pilot Officer Reg Pfeiffer.