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Aviation History
1957
1957 - 1902.PDF
CZECHS AND POLES An East European Miscellany ON these pages we present a selection of photographs ofrecent products of die aircraft industries of Czechoslovakiaand Poland. Most of the aircraft built in these countries are of Soviet origin, one of the most important being the LIM-2(Mig-15), powered by the Nene-derived WK-1 engine and built at the former P.Z.L. plants located at Warsaw and Mielec(picture 5). Both Poland and Czechoslovakia use military and civil 11-14transports. Photographs show a standard example in service with L.O.T. (11), the Polish airline which will operate these aircraftinto London before April 1 next, and one of the first Avia 14s to be completed in Czechoslovakia, and bearing military markings(10). Standard trainer of the Czech Air Force is the Russian Yak-11,built as the C-ll (14). Bulk delivery began just one year ago. The C-ll weighs 5,512 lb loaded, has a span of 30ft lOin and cruises atabout 205 m.p.h. on the power of an ASh-21 radial of 700 h.p. The C-11U (13) is also in service in small numbers, having alengthened fuselage and a nosewheel. To replace the obsolete Czech C.2B (Ar 96B), Ing. Tomasdesigned the TOM-8 multi-purpose basic trainer (2), which can be equipped with bombs and fixed guns. The sole prototype weighs3,043 lb loaded, has a span of 34ft 5iin and cruises at about 133 m.p.h. (maximum, 174) on its 235 h.p. M-208C engine.Generally similar in function is the Polish TS-8 Bies (illustrated in our May 31 issue), and a replacement for the Bies is the TS-11Iskra, of which a sketch appears here (4). Powered by a Polish turbojet of some 1,700 lb thrust, the TS-11 has been designed bySoltyk; the prototype should fly in 1959 and be capable of 530 m.p.h. The Soviet An-2 (1) is a large and capacious biplane with a1,000 h.p. engine; a picture shows one of a number used in Poland for parachute training and a host of other domestic duties.Standard Polish ambulance is the locally-built Yak-12M (3), also of Russian design, which replaces the CSS-13S (licence-producedPo-2). A notable Czech design is the Ld 60 Brigadyr (Agricolta), pictured in a crop-spraying role (6). Powered by a 220 h.p. PragaDoris B engine, the Ld 60 weighs only 3,020 lb loaded, yet it lifts a payload of 1,180 lb and has excellent short-field and slow-flyingqualities. A new Polish light aircraft is the S-4 Kania 2 (12), which firstflew on September 12 at Mielec, and has since performed very well. Intended as a replacement for the CSS-13, the Kania 2 hasa 125 h.p. M-11D engine and a speed range from 35 to 111 m.p.h., making it well suited to club duties (including parachuting andglider towing). The Czech Blanik sailplane (8) is well known— the "Cadillac of St. Yan"—but relatively new is the Herkuleswinch, now on test in Mk III form (9). Self-propelled, this has a kerosine-burning Tatra T-108 engine, rated at 134 h.p., consum- ing only about 0.084 Imp. gal per launch. Herkules III can takea high-performance sailplane to from 1,400 to 1,900ft in under one minute.Finally, the little Czech HC--2 helicopter (7) is a two-seater, equipped with full navigation aids and instrumentation. Poweredby an 80 h.p. Praga DH flat-four, the HC-2 can perform a wide range of duties. Gross weight is 1,279 Ib, useful load 463 lb,main-rotor diameter 28.86ft and top speed 78 m.p.h.
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