In 1928 O. E. (later Sir Oliver) Simmonds designed and built the Spartan two-seat biplane. Outwardly conventional, but planned for "Spartan" economy (e.g. interchangeable wings and ailerons, and rudder interchangeable with elevator). At Southampton, Hampshire, produced 49 examples, mostly for export, but some for National Flying Services Ltd. One made many Arctic flights.
The first (of seven) Spartan II was completed in September 1932.
Engine: ADC Cirrus III, 95 hp
Spartan Srs II
Engine: Cirrus Hermes IV