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Aviation History
1953
1953 - 0111.PDF
Hitler HTE-2. Hiller Hi-2 Hornet. McCULLOCH MC-4 • The McCulloch Motors Corporation, Aircraft Division, of Airport Boulevard, Los Angeles, 45, Cali fornia, produced their little tandem-rotored two-seater in 1951. The engine is a Franklin 6A4-200-C6, which drives a horizontal shaft through the upper fuselage, the rotors in turn being driven through right-angle reduction-gear units of 4.44:1 ratio. A vee- belt central drive links the engine to the main shaft. Rotor diameter, 23ft; weight empty, 1,453 lb; gross weight, 2,000 lb; maximum speed, 120 m.p.h.; cruising speed, 90 m.p.h.; service ceiling, 12,000ft. McDONNELL XH-20 • Though developed by the McDonnell Aircraft Corporation, of St. Louis, 3, Missouri, as long ago as 1947, this experimental ramjet helicopter is still undergoing develop ment. It has a two-blade rotor, each carrying at its tip a small ramjet burning Propane fuel, which is pre-heated before being ducted to the ramjets. SEIBEL S4-A and S4-B • These are products of the Helicopter Division of the Cessna Aircraft Company, Inc., of Wichita, Marquardt M-14. H0^ McDonnell XH-20 (below) Matra-Cantinieau M.C.101. Kansas. Bearing the U.S.A.F. designation YH-24, the S4-A has a single two-blade rotor driven by a 125 h.p. Lycoming O-290-D fan-cooled engine. The pilot is accommodated forward and the passenger or freight aft. Rotor diameter, 29ft ijin; weight empty, 960 lb; weight loaded, 1,500 lb; initial rate of climb, 713 ft/min. The Seibel S4-B is a trainer development with a redesigned forward fuselage and skid undercarriage. The engine is a Franklin 5A4-165-B3, giving a maximum speed of 80 m.p.h. and increasing the initial rate of climb to 1,300 ft/min. MATRA-CANTINIEAU M.C.IOI • This is the latest French helicopter and has been built by Jean Cantinieau. It is claimed that stability is increased and the mechanical parts simplified by the upper concentration of mass. A special form of "oscillating" hub is also said to confer very desirable properties. With an engine of 105 h.p. two people are carried, or, with 135 h.p., three people. Rotor diameter, 26ft 3m; weight empty, 880 lb; cruising speed, 62 m.p.h.; duration, 2 hr. Seibel S4-B.
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