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179:. Flown by Kazimierz Kalina, it won in the 1st Polish Light Aircraft Contest in October 1929, and flown by Worledge it took the 7th place in the 2nd Contest the following year. In 1929 it was bought by a private owner Pawłowski, who crashed it that year. Next it was repaired and bought by Captain
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The prototype, with a workshop number SL-4, was built in 1926 and first flown on
October 5, 1926 in Warsaw. During landing, a fuel pipe broke and the aircraft burned, injuring the military pilot Kazimierz Kalina. The pilot, however, expressed a good opinion on its handling, so the second modified
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was rectangular in cross-section, plywood-covered. In the JD-2bis, the fuselage was aluminium covered in an engine section. Wings were two-piece, rectangular with straight tips, two-spar, covered with canvas and plywood (in front section), supported with twin struts. Conventional
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The
Ministry of Communication planned to build 10 aircraft for regional aero clubs, also Poznań and Cracov Aero Clubs planned to order JD-2bis, but these planes were not realized. JD-2bis was a difficult to fly machine, with low stability, it was however liked by some pilots.
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paramilitary organization. It had changed fuselage front, wing tips and a tail fin (SL-14 and 15, registration numbers: SP-ACD and ACF). In 1930 there was built one more JD-2bis (SL-20, SP-ADP). It was later fitted with a stronger radial engine 80 hp
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Academic Aero Club and it crashed on 18 August 1930 in Lwów, injuring a pilot M. Pakuła. The other one, SP-ACF, built for Warsaw
Academic Aero Club, crashed on 16 March 1930, killing pilot K. Trzetrzewiński.
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The second prototype SL-6 was flown on June 26, 1927. Its handling was however not too good, it was also 90 kg heavier, than estimated. It was given a registration P-PSLA, from 1929: SP-ACA.
238:, with individual windshields and twin controls. A safety cage of steel pipes was above the front cockpit (JD-2) or before the front cockpit (JD-2bis). It had a fixed
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in front, air-cooled. Two-blade fixed wooden propeller Szomański. A fuel tank was in a fuselage front. Cruise fuel consumption 17 L/h.
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The last JD-2bis, SP-ADP, nicknamed "Adepcia" (a female name created from its registration letters), was built for the aviator
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flying it, took the 3rd place in the 3rd Polish Light
Aircraft Contest. It was written off in August 1936.
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The JD-2 was the first aircraft constructed by the
Aviation Section of the Mechanic Students' Club of the
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aircraf(SL-6) t was bui6), and one more airframe for static trials (SL-5).
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In 1929 two more aircraft of an improved variant, the
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were built for aero clubs, with a financial help of
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Aircraft of comparable role, configuration, and era
221:The JD-2 was a wooden construction low-wing braced
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225:, conventional in layout, with open cockpits. A
456:(in Polish). Warsaw: WKiŁ. pp. 281–283.
245:45 hp (34 kW) 6-cylinder Anzani
175:The second JD-2 (SP-ACA) was used by the
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454:Polskie konstrukcje lotnicze 1893-1939
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381:40.5 kg/m (8.3 lb/sq ft)
369:450 km (280 mi, 240 nmi)
357:116 km/h (72 mph, 63 kn)
351:130 km/h (81 mph, 70 kn)
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363:68 km/h (42 mph, 37 kn)
260:Polskie konstrukcje lotnicze 1893-1939
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132:design team). The main designer was
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292:9.7 m (31 ft 10 in)
286:5.95 m (19 ft 6 in)
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304:13.5 m (145 sq ft)
186:The JD-2bis SP-ACD was built for
471:Photo and drawing at Ugolok Neba
298:2.8 m (9 ft 2 in)
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501:Single-engined tractor aircraft
126:Warsaw University of Technology
48:Warsaw University of Technology
336:2-bladed fixed-pitch propeller
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1:
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280:1 / 211 kg (465 lb)
112:was a Polish sports plane of
506:Aircraft first flown in 1926
375:2,200 m (7,200 ft)
198:. In September–October 1930
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491:1920s Polish sport aircraft
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316:546 kg (1,204 lb)
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330:, 34 kW (45 hp)
310:335 kg (739 lb)
240:conventional landing gear
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394:130 m (427 ft)
165:Armstrong Siddeley Genet
452:Glass, Andrzej (1977).
388:80 m (262 ft)
265:General characteristics
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120:Design and development
253:Specifications (JD-2)
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128:(later a home of the
328:radial piston engine
171:Operational history
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89:Primary user
496:Low-wing aircraft
181:Zbigniew Babiński
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373:Service ceiling:
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177:Warsaw Aero Club
134:Jerzy Drzewiecki
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68:October 5, 1926
59:Jerzy Drzewiecki
38:Type of aircraft
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73:Introduction
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98:Number built
36:Sports plane
342:Performance
334:Propellers:
326:6-cylinder
320:Powerplant:
210:Description
485:Categories
418:References
302:Wing area:
50:workshops
290:Wingspan:
278:Capacity:
258:Data from
232:empennage
223:monoplane
55:Designer
399:See also
227:fuselage
81:Retired
296:Height:
284:Length:
156:JD-2bis
92:Poland
410:PWS-51
367:Range:
324:Anzani
236:tandem
144:team.
272:Crew:
84:1936
76:1927
33:Role
19:JD-2
322:1 ×
188:Lwów
160:LOPP
138:1925
114:1926
110:JD-2
108:The
142:RWD
130:RWD
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102:5
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