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Aviation History
1958
1958 - 0380.PDF
396 FLIGHT, 21 March 1958 Helicopters of the World ... Hitler Helicopters Palo Alto. California.H-23C Production of this model for both U.S. Army and Navy began in 1955,and many H-23Cs are used for training at Camp Wolters, Texas. The U.S. Navyversion is designated HTE-2. The civil equivalent, which is in world-wide service,is the 12C. Accommodation is for three people, and the single two-bladed rotor hasthe Hiller "Rotormatic" cyclic-pitch con- trol affording very good stability. Recent12Cs are powered by the Franklin 6V-335-B giving 210 h.p. Military H-23Csstill have the Franklin 6V4-200-C33 giving 200 h.p. 9 Rotor diam., 35ft; length (over rotors),40ft 6in; empty weight, 1,737 lb; gross weight, 2,500 lb; max. speed at sea level, 87 m.p.h.;cruising speed, 71 m.p.h.; cruising range, 104 miles; service ceiling, 10,500ft. H-23D This is the latest military ver-sion, powered by a Lycoming VO-435-A1C giving 250 h.p. The complete transmissionsystem has been specifically designed for an overhaul life of 1,000 hr. Deliveriesbegan last December. Accommodation for three and general layout are unchanged.• Rotor diam., 35ft; empty weight, 1,780 Ib; gross weight, 2,700 lb; max. speed, 95 m.p.h.;cruising speed, 82 m.p.h.; cruising range, 205 miles; hovering ceiling (in ground effect),5,200ft; service ceiling, 13,200ft. Hitler VZ-1E. H-32 At least eleven H-32s have beendelivered to Fort Rucker, Alabama, for U.S. Army tests of tip-propelled helicop-ters, but no production order has been placed. The H-32 is a two-seat machine,developed from the Hornet of 1950, with two-bladed rotor powered by two 8RJ2Bramjets delivering about 45 h.p. each for a weight of 13 lb each. An anti-torquetail-rotor and horizontal stabilizers are fitted. Hiller are also working on the adap-tation of turbojets to tip-drive. Advantages include simplification of drive system andreduction of mechanical complexity and cost. The fuselage is made of steel tubingand Fibreglas. The U.S. Navy has also received three machines designatedHOE-1. The 8RJ2B is the only ramjet to have received C.A.A. certification.• Rotor diam., 23ft 8in; length, 23ft; empty weight, 544 lb; gross weight, 1,080 lb; fuelcapacity, 50 gal; cruising speed, 60 kt; rate of climb at sea level, 700ft/min; service ceiling,6,900ft; endurance, 25 min. Hiller X-18. Hiller YH-32. Hiller 12C. although the Army has shown interest.The rotor, with its stabilizing paddles, and the tail rotor can be quickly adjusted togive required responses for training or operational tasks.0 Rotor diam., 18ft 6in; max. length, 16ft 6in; height, 7ft 5in; empty weight, 270 lb;gross weight (including 60 lb of miscellaneous equipment), 526 lb; max. speed, 70 m.p.h.;cruising speed, 52 m.p.h.; cruising range, 27 miles; hovering ceiling (out of ground effect),4,700ft; max. rate of climb at sea level, 1,130ft/ min; fuel/oil mixture capacity, 2.5 gal. VZ-1E Flying Platform The companybuilt and flew the first flying platform in 1955, but are now making the three-engined VZ-1E platform for the U.S. Army as a ducted fan prototype. Larger andmore elaborate versions are foreseen. The platform in its present version consists ofa ducted fan of 8ft diameter driven by three four-cylinder outboard enginesdelivering 44 h.p. each. One man is carried standing on a small platform and controlis by shifting the man's weight in direction of desired translation. Some stabilizingcontrols are presumed to be fitted; and the two prototype machines have four adjust-able vanes in the efflux for this purpose. Further developments in twin-fan plat-forms and flying cranes are projected. • Fan duct diam., 8ft; no other figures havebeen released. X-18 Tilt Wing Free-flight tests of a6ft-span model of the Hiller tilt wing pro- ject have been completed at the NACA Hiller UC. XROE-1 Rotorcycle This remarkablelight-weight machine is reported to have behaved very well in the flight tests com-pleted last summer, though no production contract has yet been placed. Demonstra-tions and exhibitions on a world-wide scale are being prepared for both military andcivil purposes. It has a single two-bladed rotor and anti-torque rotor powered by aNelson H-59 two-stroke, four-cylinder engine giving 40 h.p.; and it can be rapidlydismantled and folded for stowage or for para-dropping in a container 14ft long and27in wide. It was designed for the U.S. Marine Corps under Navy contract, Hiller XROE-1. Langley Field Laboratory, including hover-ing and conversions. Results are reported to have been good. Construction of thefull-scale aircraft, based on a Chase C-122 fuselage, is nearing completion andfull tests might begin this year. Two Allison T40 turboprops with contrapropswill provide power, together with a pair of steering engines in the tail. The wing willtilt between the vertical and flying inci- dence; and the fuselage will provide suffi-cient space for a full test crew. The X-18 is under development for Air Research andDevelopment Command of U.S.A.F. No further details have been released.
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