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Aviation History
1963
1963 - 1310.PDF
•^^MshJr* Boeing-Vertol CH-113 (107 Model II) Boeing Vertol CH-47A Chinook VTOL aircraft.. . skidding during engine run-up on a wet surface, dual ignition, a larger (22ft) rotor and pontoons. Rotor diom. 20ft; fuselage length, 11 ft 4in; height, 6ft 3in; gross weight, 5001b; empty weight, 2471b; max speed, 85 m.p.h.; cruising speed, 60 m.p.h.; min speed in level flight, 14 m.p.h.; max rate of climb at s.l., 2,000ft/min; normal range, 100 miles. B-9 Little Zipster First true helicopter built by Bensen, the Little Zipster has co axial rotors driven by a 70 h.p. Keikhaefer Mercury engine. The only controls are an overhead stick to move the tilting head, rudder pedals and a twist-grip throttle. Difficulties in producing an inexpensive transmission and automatic rotor governor have delayed production. Rotor di'am. upper 22ft. lower 20ft; gross weight. ?00fb; cruising speed, 60 m.p.h.; normal range, 100 miles. B-11 Gyro-Copter This new version of the Gyro-Copter has a 22ft teetering rotor which is driven by a 7.5 h.p. West Bend "kart" engine not only for spin-up but during flight. This engine can be started and operated independently of the main 72 h.p. McCulloch which drives the propeller, and drives the rotor through an overrunning clutch at a 12.4:1 ratio. A new gimbal tilting-head azimuth control is claimed to give hands-off stability; other changes include metal tail surfaces instead of wood, a propeller of increased diameter (50in), dual ignition, and the introduction of a nosewheel arrester to supplement the brake. Optional extras include a floor-type control column, flat-bottom floats and cross-wind landing gear. Rotor diam, 22ft; gross weight, 6251b; empty weight' 2851b. B-13 Latest Bensen design, the B-13 is a single-seat helicopter of conventional "tail-rotor" configuration, powered by a 70 h.p. outboard motor. It has been de signed for inexpensive assembly and opera tion by amateurs, and has an all-bolted structure. The prototype flew on March 4, and the B-13 should be made available in kit form during the next twelve months. The Boeing Company Vertol Division, Morton, Pennsylvania 107 Model II Boeing's twin-turbine tan dem-rotor commercial helicopter got off to a disappointing start with New York Air ways last year and is still awaiting clearance for all-weather operation. Despite this, NYA have taken delivery of their fifth 107 Model II and are to lease two more from Pan American to operate a new service between the heliport on top of the PanAm building in the centre of New York City and the PanAm passenger terminal at Idlewild. The standard 107 Model II is available either as a 25-seat airliner, with roll-out rear container for 1,5001b of baggage, or as 136 FLIGHT International, 25 July 1963 a utility model with rear loading ramp instead of the baggage container. Each version is powered by two 1,250 s.h.p. General Electric CT58-U0-1 or Bristol Siddeley Gnome H.1200 turbines, which drive the three-blade rotors through inter connected shafts, so that either engine can drive both rotors in an emergency. The fuselage is sealed to permit water landing and take-off, and the sponsons at the rear serve as both stabilizers on the water and fuel tanks. Orders for the 107 Model II include ten for Kawasaki Aircraft, Boeing's licensee in Japan, six for search and rescue duties with the RCAF under the designation CH-113, 12 for transport duties with the Canadian Army under the designation CH-113A and nine Gnome-powered aircraft for the Royal Swedish Air Force and Navy. The military models all have increased fuel capacity. The Swedish naval aircraft will have equip ment for anti-submarine, mine counter- measures and towing duties. The following data apply specifically to the commercial 107 Model II. Rotor diam, each 50ft; length of fuselage, 44ft 7in; height, 16ft I0in; gross weight, /9,0001b; empty weight, 10,6001b; overage cruising speed, 150-155 m.p.h.; hovering ceiling In ground effect, 10,800ft; range with 6,6001b payhai (utility), Il5miles. CH-46A Sea Knight This assault trans port version of the 107 Model II is in production for the US Marine Corps. It is powered by two 1,250 s.h.p. General Electric T58-GE-8 turboshafts and has equipment for all-weather operation. Pow ered blade folding will simplify handling on board ship and a new integrated loading system will permit loading in as little as 8min under field conditions. The CH-46A is designed to carry a crew of three and 17 fully-equipped troops or 4,0001b of cargo over a combat radius of 115 miles at 150 m.p.h. In a rescue role it will be able to retrieve 20 persons up to 105 miles from its base. The first CH-46A flew in October 1962. In the following month the original order for 14 was supplemented by a repeat order. CH-47A Chinook First flown on Septem ber 21,1961, the Chinook is a scaled-up and considerably redesigned derivative of the 107 Model II, with a maximum payload of nearly 14,0001b for short-range combat-area operations in all weathers. More normal payloads include three tons of freight, 33 troops, 27 paratroops or 24 litters, and the Chinook has been designed to carry any component of the helicopter-transportable version of the Pershing missile system. The CH-47A is powered by two 2,650 s.h.p. Lycoming T55-L-7 turboshafts, and carries its fuel inside fairings on each side of the fuselage. Like the fuselage itself, these fairings are sealed to provide buoyancy for operation from water. The rear loading ramp can be left open in flight. Including five YCH-47A(originallyYHC-lB) develop ment aircraft, the US Army has ordered a total of 52 Chinooks. Several had been delivered by the spring of this year for testing and pilot training. Rotor diam, 59ft t$b length of fuselage, Slf1'-"",^'. 18ft 6 in; gross weight, 33,0001b; empty weight, n J'*1'; max speed, 175 m.p.h.; cruising speed, ISO "rj':jjr rote of climb at s.l., 2,340ft/min; hovering ceiling^M"' ground effect, 8,3i0ft; radius of action with e.w payload, 115 miles.
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