In 1941, Short proposed the development of a new variant of the Stirling, the "S.36", which was nicknamed "The Super Stirling" in a company publication. This aircraft would have featured a wing span of 135 ft 9 in (41.38 m), four Bristol Centaurus radials and a maximum takeoff weight of 104,000 lb (47,174 kg). The projected performance estimates included a speed of 300 mph (483 km/h) and a 4,000 mile (6,437 km) range, along with a weapons load of over , or over . The defensive armament of the S.36 was to be an assortment of ten .50 BMG machine guns that were set into three turrets.