While the main drawing office was busy on development of the Wyvern, the project office initiated a number of interesting design studies.
One, designated W-37, was for a low-wing monoplane two-seat jet trainer. The idea was to introduce a programme of all-jet training, dispensing with the practice of giving ab initio training in piston-engined aircraft (this procedure was adopted later by the Royal Air Force, the first air force to do so, with the Jet Provost).