In 1935, Sir John Carden and L. E. Baynes designed a single-seat powered sailplane, known as the Scud, one example of which was built by Abbots-Baynes Aircraft Ltd at Farnham, Surrey. When the two designers founded the Carden-Baynes Aircraft Ltd at Heston, Middlesex in 1936, they embarked on another project, the ultralight Bee, flown on 3 April 1937. This was a side-by-side two-seater, powered by two 40hp Carden Ford SPI converted car engines driving pusher propellers. All activities ceased in the 1930s when Heston was requisitioned by the Air Ministry.