Flight, September 1939

To-day's Light Aeroplanes

HILLSON

   THE new Hillson Helvellyn trainer should now be ready for its first test flights. It is an open tandem two-seater cantilever monoplane of middle-wing design, with split flaps extending to the limits of the centre section. The engine is a 90 h.p. Cirrus Minor. The designer has attempted to produce a somewhat unorthodox machine which will be the best compromise for ab initio training work. It is designed to take a tricycle undercarriage as and when necessary, though the prototype has the normal type. The performance figures below are, of course, estimated:

Span 33ft.
Length 22ft.
Weight empty 600 lb.
All-up weight 1,500 fb.
Cruising speed (2,300 r.p.m.) 110 m.p.h.
Initial rate of climb 750 ft./min.
Range 550 miles.
Makers: F. Hills and Sons, Ltd., Trafford Park Road, Manchester, 17.