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Aviation History
1961
1961 - 0618.PDF
628 diluted to facilitate starting in extreme cold. The inside of the windscreen can also be heated by hot air. De-icing fluid is con- tained in a 6 Imp gal tank with a secondary supply in a tank holding 0.6 Imp gal. • Rotor diam, 47ft; length, 40ft 9in; emptyweight, 3,9251b; gross weight, 4,9601b; max speed at s.l., 124 m.p.h.; max vertical rate ofclimb, l,280ft/min; hovering ceiling, 9,840ft; max range at 87 m.p.h., 240 miles. USSR Mi-1 Moskvich Mi-4 VWLINTERNATIONAL SURVEY Motoimport Przemyslowa 26, Warsaw SM-1 Essentially similar to the Soviet- built version, this Polish Mi-1 as offered by Motoimport can be equipped for agricul- tural, ambulance or executive work. The four-seat executive version has an enlarged forward fuselage. A fluid de-icing system is provided for the rotors and the windscreen can also be de-iced by fluid spread over the glass by the wiper. Engine oil may be Kamov Ka-15 A two-seat utility helicopter, the Ka-15 has two contra-rotating co-axial three-blade rotors driven by an AI-14V engine of 275 h.p. Most of the structure is metal, with metal and plywood covering. • Rotor diam, 32ft 8in; cruising speed,78 m.p.h.; hovering ceiling, 2,200ft; service ceiling, 9,800ft. Ka-18 This is a development of theKa-15 having a lengthened and redesigned forward fuselage, with a cabin accommodat-ing four persons instead of two. The structure is a welded steel-tube truss witha monocoque tail boom, and the fuselage is dural-skinned. • Rotor diam, 32ft 8in; empty weight,2,2701b; gross weight, 3,3001b; cruising speed, 80 m.p.h, approx. Mikhail Mil Mi-1 The latest development of thisvery extensively used helicopter is a refined version named the Moskvich. It is illus-trated in an accompanying photograph. Day and night all-weather capabilities arereported, and the cabin, seating the pilot and three passengers, is soundproofed.Hydraulically controlled all-metal rotor blades are fitted. The common passengerversion of the Mi-1 has three to four seats and the agricultural version carries about8801b of chemicals in tanks one on each side of the fuselage. For ambulaice dutiespanniers for stretcher cases can be simi- larly disposed. In the mail-carrying rolealso auxiliary panniers are used. The engine is an AI-26V giving 575 h.p. for take-off. Mi-3 A development of the Mi-1, having four-blade rotor and modified fuselage. Mi-6 Yak-24K FLIGHT, 11 May , >6l Mi-4 This very successful med: un-sized helicopter is now meeting with sue ess in the export market. The normal mil arymodel can accommodate the Soviet eqi va. lent of the jeep, a small car, a 75mm . nti-tank gun, or two motor-cycle sidecar c >m- binations. Fourteen armed soldiers areanother possible load and a passe ger version supplied to Austria can seat iu to16. The variant used by Aeroflot is kr >wn as the Mi-4P and seats ten passengers v hileproviding ample space for luggage, his version is characterized by square—insteadof round—windows, and there is no under- slung gondola for the navigator, as on themilitary machine. In one agricultural version the gondola is used as a distributingpoint for chemicals. Ka-18 The standard powerplant of the Mi-4series is the ASh-82V developing 1,700 h.p. Provision is made for blind- and night-flying, and there is an anti-icing system, as on the smaller Mi types. The four-bladedmain rotor has hydraulic servo control. A notable feature of the metal fuselage,especially from the military aspect, is the clamshell doors at the rear. 0 Rotor diam, 68ft 11 in; gross weight,15,8731b; disposable load, 2,645-3,5271b; max speed, 116 m.p.h.; ceiling, 19,750ft. Mi-6 The world's largest helicopter, theMi-6 is powered by two Soloviev TB-2BM shaft turbines each of 4,635 h.p. These werespecially designed for this application and are mounted atop the forward fuselage.Wings are fitted to unload the five-blade rotor, which is said to measure well over100ft in diameter. Gross weight is believed to be at least 70,0001b. The most recentlypublicized version is fitted, as shown in the accompanying picture, with wings whichunload the main rotor. Several records stand to the credit of this huge helicopter,including a speed of about 167 m.p.h. over 100km. closed circuit. A 10,000kgload has been lifted to over 16,000ft. Yakovlev Yak-24 Little new information con-cerning this tandem-rotor helicopter has been received since our previous review.The latest known version is the Yak-24K, apparently developed for Aeroflot andhaving luxury accommodation for nine passengers. Very large windows are fittedand auto-stabilization is reported to be a feature. The standard powerplant of theYak-24 is two ASh-82V 14-cylinder radial engines each of 1,700 h.p. In miliurymodels at least there is a loading rarnp for wheeled or track vehicles and heavy milinryequipment. The cabin measures some "3ft in length and will accommodate two loriesor jeeps, a twin 14.5mm anti-aircraft gin, with its crew, or as many as 40 troops. • Gross weight, 32,OOO-36,OOOlb; crui ngspeed, over 120 m.p.h. (continued on page 635)
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