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Aviation History
1930
UNTITLED0 - 0986.PDF
•FLIGHT, AUGUST 22, 1930 1 THE "HENDY" 302 A Low-Wing Cabin Monoplane with Cirrus-Hermes Engine FROM whatever pointof view one regardsit, the " Hendy " 302 monoplane, produced for the King's Cup Air Race, is a machine of more than usual interest. Aerodynamically, it is characterised by high efficiency, both in the matter of minimum drag and high L/D and high kL max. Structurally, it is simple, robust and rigid, at the cost, perhaps, of a slightly in- creased structure weight. And as a practical aeroplane for the private owner it is comfortable, roomy and well- behaved. In fact, put quite briefly, there is very little in the " Hendy " 302 that one could reasonably wish to have altered. Before giving a description of the actual machine, a few notes dealing with the people who produced it may be of assistance to those of our readers to whom the Henderson Aircraft Com- pany is something of an unknown quantity. Mr. Basil B. Henderson was, for technical staff at Hamble. close down the Hamble works position and formed, with Mr. confused with Mr. F. G. Miles "HENDY" Cirrus " Hermes Length, o.a.Wing Span Areas Wing A Herons Tailplane Elevator Fin Rudder Weights Tare Gross* Performance Max. Speed near ground.. 132 m.p.k. (213 km. jh. Cruising Speed (at 1,900 r.p.m.) . . Minimum Speed Initial Rate of Climb Time to 5,000 ft. (1,525 m.) Service Ceiling * This is the C. of A. gross weight granted for the King's Cup Race. The designed C. of A. weight is 1,600 Ib. (726 kg.) for Aerobatics and 1,900 Ib. (862 kg.) for Normal. 302 ' Engine ft. in. .. 22 10.. 35 00 sq. ft. .. 1630150 15-3 10-2 4-0 8-0 Ib. 1,045 1,700 metres 6-9610-67 sq. m. 15151-39 1-42 0-950-36 0-74 H-475 773 several years, on the Avro When that firm decided to , Mr. Henderson resigned his H. A. Miles (who is not to be of the Southern Aircraft Co.), the Henderson Aircraft Co. A small shed was obtained at the Shoreham aerodrome, and in this, Henderson and Miles set to work. Mr. Hen- derson had for some time been pondering an idea for a new type of wing spar construction, and now was the opportunity to test out the idea on an actual machine. Funds were not too plentiful, and something unambitious was indicated. Mr. Hender- son chose the type of machine which could be built at the smallest cost, while yet definitely proving the sound- ness or otherwise of Mr. Henderson's idea for a new spar. That machine was the little " Hobo," a single- seater low-wing monoplane with A. B.C. "Scorpion" engine. After many vicissi- tudes, the machine was completed and flown, and not only did it prove quite successful as a single-seater machine, but it showed that the new type of wing spar did in practice what Mr. Henderson had calculated that it should do. The spar was very rigid, and not only gave very little deflection under bending loads but, what was more important still, proved, as had been hoped, that the Henderson form of construction gave a wing very strong in torsion. 112 m.p.h. (180 km.jh.) 37 m.p.h. (60 km.jh.) 850 ft./win. (4-32 m.jsec.) 7 • 1 minute 16,000 ft. (4,880 m.) THE "HENDY" 302 Details of the wing construction. Note the lattice type drag bracingof the main spars. (FLIGHT Photos.) . : ..:: ~ 938 ;^:':^v;:'* "'""•~: 'r -:
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