In 1955 Auster modified two T.7s, (along with WE563) for use in the Commonwealth Trans-Antartic Expedition, to be known as the Auster Antartic. Alterations included better radio equipment, a larger tail surface, use of floats or skis as required and a bright-orange high-vis scheme. After returning from the expedition this airframe was allocated the non-flying serial 7602M and was delegated to display status paving the way for her eventual arrival at Cosford during 1989.