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Aviation History
1960
1960 - 0728.PDF
728 FLIGHT, 27 May I960 HELICOPTERS OF THE WORLD . . . specifically for the aircraft. Primarily theYROE-1 is being developed for military applications, although a civil version is inprospect. Of the military applications the makers remark: "Immediate intelligenceand communications control can be ini- tiated in the fluid combat situation and withminimum logistic effort by employing Rotorcycles for airborne surveillance andinspection, light wire laying, courier work, and as an airborne communicationsstation. Rotorcycles may also be used to transport small but critical re-supply itemsand equipment; folded within a stream- lined pod, it may be air dropped from thelightest of military aircraft as a rescue or evacuation vehicle; used in force, assaulttroops and patrols can move unannounced into strategic enemy areas." • Rotor diam, 18ft 6in; empty weight, 3001b;gross weight, 4961b; max speed at s.L, 70 m.p.h.; cruising speed, 52 m.p.h.; max rate ofclimb at s.l., l,160ft/min; hovering ceiling in ground effect, 9,200ft; range at s.l. with 1701bpilot, 166 miles. 12E Having a military counterpart inthe H-23D Raven, the civil 12E is built to accommodate kit conversions for a tenper cent increase in horsepower and a cabin configuration kit conversion fromthree to four seats. The engine is a Lycoming VO-540 of 305 h.p. Equip-ment can include dual controls, quick- release cargo sling, hoist, stretchers,spray gear and flotation gear. • Rotor diam, 35ft 6in; fuselage length, 27ft;empty weight, 1,7001b; gross weight, 2,7001b; max speed at s.L, 95 m.p.h.; cruising speed formax range, 82 m.p.h.; max rate of climb, l,520ft/min; hovering ceiling in ground effect,9,500ft; range, 185 miles. Hughes Tool Company Culver City, California 269A This little helicopter is beingoffered at $22,500. The makers claim that it requires half an hour of maintenanceper flight-hour, uses 8-10 US gallons of fuel per flight-hour, and gives at least1,000 hr life for all wearing parts in all major components. A main rotor blade,they say, can be bought for less than $250. The Lycoming O-360 engine of 180 h.p.is installed beneath the two seats, and a vee-belt drive eliminates the need for aclutch. • Rotor diam, 25ft; length, 28ft; emptyweight, 8671b; gross weight, 1,5501b; cruising speed, 85 m.p.h.; range, 200-220 miles; hover-ing ceiling in ground effect, 6,000-13,500ft. Kaman Aircraft Corporation Bloomfield, Conn HU2K-1 Seasprite A utility, and pos-sibly anti-submarine, helicopter for the US Navy, this advanced aircraft has a GeneralElectric T58-6 turbine of 1,025 s.h.p. A remarkable feature is the retractable under-carriage, which is intended not only to benefit speed but to avoid the possibilityof the cable being tangled on rescue operations. Describing the HU2K-1 our contem-porary Aviation Week reports: "A vir- tually all-new helicopter, the HU2Kembodies few components from previous Kaman aircraft. Key design features are:all-aluminium construction, aluminium and glass fibre rotors, fully retractablelanding gear, flotation hull, maintenance provisions and a sophisticated avionicssystem designed for in-flight operating simplicity. The virtually all-aluminiumfuselage is of semi-monocoque design with a tub type flotation hull. Chief struc- tural member is a built-up, beaded-aluminium sheet centreline keel running aft to the pylon extension, separating thecabin deck from the belly to form a two- foot-deep flotation chamber that alsohouses main fuel tanks." The manufacturers have developed their.own automatic stabilization equipment and dead-reckoning navigation equipmentfor this helicopter in order to provide maximum flexibility in rescue work, all-weather operation and anti-submarine warfare. When coupled, the autostabiliza-tion equipment and "autonavigator" pro- vide complete hands-off control. • Rotor diam, 44ft; overall length, 52ft 2in;empty weight, 5,0521b; max gross weight, 9,1521b. K-17 This experimental aircraft is agas-turbine-powered, cold cycle, tip-jet helicopter. The turbine runs a compressor,and compressed air is passed through the rotor-tips. The system is thought to holdpromise of "an answer to the need for simplicity." The company is employingthe helicopter as a testbed in conjunction with the evolution and development of jet McDonnell Model 120 lifting another rotor propulsion. The engine is a Turbo-meca Turmo of 400 e.s.h.p. • Rotor diam, 35ft; empty weight, 9501b;gross weight, 2,0001b; max speed, 80 m.p.h. H-43B Huskie Powered with a Lycom-ing T53 turbine of 825 s.h.p., the Huskie is primarily intended for crash-rescuemissions. It features several well-known Kaman developments, including servo-flaps, intermeshing rotors, and in-flight tracking. Servo-flaps are small aileron-like controls mounted behind the rotary wings. They make possible lighter, moresensitive control as well as greater stability. The intermeshing rotors permit a sym-metrical design in which torque is in- herently equalized and balanced. All ofthe power of the engine can be translated into lift. In-flight tracking is a Kaman-developed system that enables the pilot to track either rotor by a simple switch in thecockpit. A production Huskie has established an Kaman H-43B Huskie Kellett KD-1 Monte-Copter Model 75 Tri-phibian Omega BS-12 Rotorwing Sportsman
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