This design is based on the Supermarine Spitfire (D-B, serial number W3185) flown by Douglas Bader CBE DSO & Bar, DFC & Bar. Bader joined the RAF in 1928, and in December 1931, while attempting some aerobatics, he crashed suffering severe injuries that required both his legs were amputated—one above and one below the knee. He recovered, was fitted with prosthetic legs, retook flight training, passed his check flights and then requested reactivation as a pilot however was retired on medical grounds much to his disappointment. After the outbreak of the World War II in 1939, however, Douglas Bader returned to the RAF and was accepted as a pilot. During World War II he was credited with 22 aerial victories, four shared victories, six probables, one shared probable and 11 enemy aircraft damaged.

In August 1941, Bader bailed out of Spitfire W3185 over German-occupied France and was captured. Over the next few years, he made so many escape attempts that the Germans threatened to take away his legs. Due to these numerous escape attempts he was finally dispatched to the "escape-proof" Colditz Castle where he remained until 15 April 1945 when it was liberated by the US Army. Bader passed away September 5th, 1982, aged 72.