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Aviation History
1934
1934 - 0743.PDF
JULY 19, 1934. FLIGHT. 745 greater than the handicappers expected and the King's Cup came into his company's possession. It is interesting to learn that although the cross-section of the fuselage has been increased by two square feet in the " S.T.10," the altered shape of the nose giving a better entry, particularly underneath, has resulted in an increase in speed cf over 10 in.p.h. Part of this increase is due TO an alteration in the fore and aft attitude of the machine during flight. Thes? facts make the machine doublv interesting because it is one of the select few built for the ordinary user wherein the designer's-ideas have resulted in beating the handicappsrs in a lace. The " S.T.10," as it flew in the race, has a fixed under- IN THE OFFICE : Mr. H. J. Stieger, designer of the " S.T.10,". and Managing Director of General Aircraft Ltd., is here standing In the cockpit of the machine before the race started. Seated is Fit. Lt. H. M. Schofield, General Man- ager and Chief Pilot of the company. He flew the" S.T.10 "throughout the race. Flight Photo.) carriage, but nevertheless the two Pobjoy " Niagara " engines of only 90 h.p. each pull it through the air at 144 m.p.h. That speed, for only 45 h.p. per person, is no mean achievement, but the performance.of tho "S.T.i 1 " will be even more spectacular. This will be the model with the retractable undercarriage and it will have an easy cruising speed of 150 m.p.h. The cabin of both models is very light and airy and the windows, which extend right to the rear behind the passengers' seats, completely obviate any feel in.'* the occupants might otherwise have of being shut in. Being a two-engined machine the outlook for thy pilot is admirable, and it is worth noting that botli Fit. Lt. Schofield and Mr. Gardner, who was flying an " S.T.6," were able to get through the bad weather which held up other people. Structually, the " S.T.10 " does not differ very greatly from the "S.T.4," which was described in Flight for April 22, 1932. The Monospar arrangement of both the wings and the fuselage has, of course, been retained, but the latest model has a considerably deeper cabin with the passengers sitting higher in it, and the fuel is now carried in a tank beneath the floor. As much as possible of the whole btructure is built up from steel tubes or drawn steel channels of various sec- tions, and, naturally, the whole is assembled in jigs, so that replacement of any part is a simple matter. As our sketches show, the front portion of the fusel- age is rather like a " hip-bath " of steel tubes. This forms the cabin and carries both the wings and the undercarriage. The rear portion is built up round a Monospar girder braced with kingpost and wire stays for torsional rigidity. The wing stubs are struc- tures carrying the engines and the outer struts of the undercarriage, and form the fixed hinge for the outer sections of the wings, which fold inwards when the trailing edge flaps of the stubs are folded up. The wings themselves are mainly built of steel and are covered with doped fabric. The single spar is a deep girder built up from strip steel drawn into CONSTRUCTIONAL DETAILS of the Monospar " S.T.10." The lettering shows the parts of the main structure to which the small sketches refer. This new model has only one door to the cabin but the whole top opens up as well, making getting in and out a very simple and easy matter.
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