Flight, May 1931
THE CANADIAN "CUB"
A low-powered single-seater light 'plane, designed and built in Canada, which, fitted with a 40 h.p. A.B.C. "Scorpion II" engine, has demonstrated a very satisfactory performance
ALTHOUGH a "private" venture on the
part of two Englishmen, Mr. G. W. Saynor and Mr. R. N. Bell - formerly of the R.A.F. and late of the design staff of the Blackburn Aeroplane & Motor Co., Ltd., at Brough - the "Canadian Cub," which was recently designed and constructed by them in Montreal, is worthy of any first-class commercial production job. Its performance is remarkably good, having proved to be well behaved in the air, free from vices, and has performed all the usual aerobatic feats.
On one occasion it was flown from Montreal to Ottawa when the temperature was 18° below zero, and functioned perfectly all the way, while it has also been flown in a maximum temperature of 20° below zero. The "Cub" has been stressed by the AED at Ottawa for aerobatics to an all-up weight of 780 lbs., and has been approved by the AED. The "Cub" is a single-seater high-wing monoplane, at present fitted with a 40-h.p. A.B.C. "Scorpion II" engine, although it has been stressed to take an engine of up to 60 h.p., such as the "Salmson." With the "Scorpion," however, this machine has a maximum speed of 100 m.p.h. and a landing speed of about 44 m.p.h., while the service ceiling is 10,000 ft. and the initial rate of climb of 500 ft./min.
By giving the wings a pronounced sweep-back it has been possible to avoid a long nose in the fuselage - which generally obtains in machines having such a light engine as the "Scorpion." Thus, apart from any advantage that may be obtained as regards stability, the "Cub" possesses a pleasing well-balanced appearance, with its comparatively short monocoque fuselage of elliptical cross-section.
The pilot's cockpit is located immediately behind the wings, and an adjustable parachute-type alclad bucket seat maintains the height of the pilot's eye level with the trailing edge, providing excellent visibility both upwards and downwards.
Another feature of the "Cub" is that the centre section of the wing is built integral with the fuselage, and contains the main petrol tank of 7 1/2 gal. capacity, forming a rigid structure to which the main spars of the wings are attached. The wings, it will be observed, are braced by a pair of V struts on either side of the fuselage.
A sturdy undercarriage, equipped with "doughnut" wheels, is provided, and telescopic tubes connected by shock-absorbing cord rings form the springing gear for the tail-skid.
Apart from sport purposes, the "Cub" is, we should think, particularly suitable for advanced or Service training, and for solo flying for Club members who wish to increase their "hours."
The principal characteristics of the "Cub" are :- Span, 25 ft.; overall length, 18 ft.; overall height, 6 ft. 1 1/2 in.; wing area, 98 sq. ft.; weight empty, 483 lb.; disposable weight, 190 lb.; fuel and oil, 77 lb.; total loaded weight, 750 lb.; wing loading, 7.65 lb./sq. ft.; power loading, 18.8 lb./h.p.; speed range, 44-100 m.p.h.; rate of climb, 500 ft./min.; service ceiling, 10,000 ft.; range (4 hours), 320 miles.