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Aviation History
1960
1960 - 0730.PDF
730 FLIGHT, 21 May I960 HELICOPTERS OF THE WORLD miles. Internal cargo capacity is 405 cu ft.A 5,0001b-capacity automatic touchdown- release cargo sling can carry external loadsand provision is made for a 6001b-capacity hydraulically operated hoist. Military ver-sions have automatic stabilization equip- ment. The rotor blades are all metal andthe engine is a Wright Cyclone C989HE2 (1,525 h.p. for take-off).9 Rotor diam, 56ft; overall length, 65ft 10in; empty weight, 7,6751b; gross weight, up to13,6001b; max speed, 123 m.p.h.; cruising speed, 98 m.p.h.; rate of climb at s.L, 1,100ft/min; service ceiling, 10,500ft; hovering ceiling in ground effect, 4,900ft; range, 260 miles. S-60 Skycrane This "crane" helicopterutilizes the principal components of the S-56. Though piston-engined, it is re-garded as the prototype of a whole family of turbine-powered cranes capable ofcarrying loads up to 50 tons. There is a cabin in the nose for the pilot and co-pilot.Several slinging points are located on the under-side of the fuselage and an experi-mental "passenger pod" has been developed. • Rotor diam, 72ft; empty weight, 19,6001b;max gross weight, 34,5001b; hovering ceiling in ground effect, 6,800ft. S-61 This autumn should see the first flight of the S-61—a boat-hull helicopter fr~ carrying up to 28 passengers and poweredwith two General Electric T58-8s of 1,250 s.h.p. max. The basic airframe is that ofthe HSS-2, later described. • Rotor diam, 62ft; fuselage length, 58ft llin;empty weight, 10,2591b; gross weight, 18,7001b; cruising speed, 135 m.p.h. at 8.1.;range with max fuel, 285 miles. HSS-2 Now in production for the USNavy as an anti-submarine helicopter, this arriphibian, powered with two GeneralElectric T58 shaft turbines, will, according to Aviation Week, have "nuclear depthbomb as well as conventional warfare capability." It will be capable of single-engine operation with full load. Anti-icing equipment is provided for the rotor bladesand advanced submarine detection gear and an improved navigation system isinstalled. Points of note are the 6001b- capacity rescue hoist and the fully auto-matic blade-folding equipment for carrier stowage. A 6,0001b-capacity automatictouchdown-release cargo sling can be installed to carry external loads. S-62 This was the first boat-hull amphi-bious helicopter to fly (1958). Essentially it embodies the mechanical components ofthe S-55 with gas-turbine Dower (one General Electric T58-GE-6 shaft turbine)and the new hull. Typical accommodation is for 10-12 passengers. The V bottom ofthe hull is designed to cushion impacts when alighting on water and to throw sprayoutwards and downwards. • Rotor diam, 53ft; overall length, 62ft 3in; Vertol 107 prototype f v Vertol YHC-1B Chinook mock-up (foreground) with Vertol H-21C basic weight, 4,5501b; gross weight, 7,5001b:max speed, 117 m.p.h.; cruising speed, 9g m.p.h.; hovering ceiling out of ground effect8,000ft; service ceiling, 15,700ft; range, 230 miles. S-64 A twin-engined crane helicopterthis type will have two General Electric T64s or Pratt & Whitney JT4s orPratt & Whitney JT12s, driving a six-blade rotor of 72ft diameter.. It will be capableof lifting at least eight tons. Umbaugh Aircraft Corporatior / '_i . Hagerstown, Md Umbaugh-18 The address given aboveis, in fact, that of the Fairchild Engine & Airplane Corporation, which is now pro-ducing this little two-seat autogiro. It is intended to market the aircraft at $9,995and it is said that maintenance cost will be about six cents a mile when the aircraft isflown 300 hours a year. The Lycoming 180 h.p. engine drives a pusher propellerand lift is provided by a three-blade rotor, the blades of which are pre-rotated forvertical take-off. Maximum speed is quoted as about 126 m.p.h. and cruisingspeed on 65 per cent power as 100 m.p.h. Range is about 350 miles and serviceceiling 15,000ft. Vertol Division, Boeing: Airplane Company Morton, Perm Model 107 A commercial forerunner ofthe US Army's much larger YHC-1B Chinook, the type has been adopted byNew York Airways in a form which will differ from the prototype, which has beenflying, as a private venture, since 1958. Full particulars of the production-typecommercial 107 have not been given, but it is designed to cruise in excess of 150m.p.h. with 25 passengers. At the time of writing there is still a possibility that,instead of General Electric T58 shaft turbines, the New York Airways' machineswill have Napier Gazelles, installed in external pods. Fuselage length and all-upweight would be increased. The president of the American airline has said: "Withthese machines commercial revenues could for the first time offset all operatingcharges 'including taxes' and produce a fair return on the capital investment. Thisshould be true on short-haul, high fre- quency routes where the service meets apublic demand." • Rotor diam, 50ft; fuselage length, 44ft 7in;empty weight, 11,0001b; gross weight, 18,4001b; max cruising speed, 150 m.p.h.; hoveringceiling (in ground effect), 7,800ft. YHC-1B Chinook The first aircraft of thistype should fly early in 1961. A mock-up is depicted. Powered by two LycomingYT55 shaft turbines of 1,940 h.p., the Chinook is designed to have an averagemission cruise speed of 150 m.p.h. There is a rear ramp-type opening as well as aforward door. There will be provision for carrying 33 combat troops or 24 stretcherpatients. An auxiliary power unit will operate all the helicopter's systems (elec-trical and hydraulic) and there will be dual stability systems—the "universal auto-matic flight control system" developed by the Signal Corps and the Vertol developed"stability augmentation system." The loading ramp can be removed for flight topermit parachute dropping or free-drop delivery, or permit the transport of "over-length loads." • Length (blades folded), 51ft; empty weight,15,4591b; gross weight, 23,5001b; max speed, 175 m.p.h.; hovering ceiling (in ground effecO,12,900ft; service ceiling, 18,900ft; range (witn: reserves), 200 n.m. °
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