158:, this strut supported the leading edge of the lower wing when the wings were disconnected from the root and folded back alongside the fuselage, hinging on the rear spars. The wing root was strengthened by an inverted V-strut from its spars to the upper fuselage longeron. The upper centre section was formed by an aerofoil section fuel tank, held over the upper fuselage by three pairs of struts, the forward-most leaning rearwards to the forward spar and the others, in parallel, outwards to the rear spars. Only the lower wing was mounted with
26:
247:
The M.N.5 was then flown by both civil and service pilots, who remarked on its good handling and manoeuvrability. The
Department of Aeronautics, looking for a replacement for its Hanriots, was enthusiastic and the construction of a second prototype to speed development was proposed. Unfortunately,
118:
and the M.N.5. The latter was designed by Józef
Medwecki and Zygmund Nowakowski, both of whom worked for Samolot. With the company's help, two M.N.5 airframes were built, one for static load testing and the other for flight.
110:, the group that encouraged Polish air-mindedness put out a call for suitable designs, powered by a 60 kW (80 hp) engine, that would be cheap to buy and to run. Three designs received development contracts, the
248:
as
Samolot was in the process of liquidation, another builder had to be found. The Ministry proposed PZL who were developing the PZL 5 and showed no interest in helping a competitor, so no more N.M.5s were built.
150:
but in addition a long steel tube strut, larger in diameter than the others, ran in the plane of the forward spars from the top of the interplane strut down to the lower spar just outboard of the
188:
connected by frames, though the forward part was reinforced with steel tubes. Its covering, including rounded decking, was plywood. There were two
244:. Early testing revealed some stability problems which were overcome by moving the engine forward 300 mm (11.8 in) in a longer nose.
134:
access. The equal span upper and lower wings were both in two parts with rectangular plans out to blunted tips. They were built around pairs of
483:
478:
94:
initially aimed at the club market, though there was also some military interest. It performed well but lacked a constructor after
451:
212:
264:, served them for many years. It took part in many rallies and competed in regional and national championships.
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in tandem, fitted with dual control. The instructor sat in front under the wing and the student just aft of the
106:
The increasing number of Polish aeroclubs in the early 1930s called for a suitable training aircraft.
347:
173:
139:
216:
159:
443:
436:
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formed a V-strut on each side. Its short tailskid had a vertical, rubber cord shock absorber.
8:
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with mainwheels on cranked half-axles hinged from the fuselage underside centreline; a
135:
473:
447:
91:
37:
196:. Behind the pupil's cockpit there was a third seat under a detachable ply cover.
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301:
7.3 m (23 ft 11 in) (initially 7.0 m (23 ft 0 in))
467:
351:
193:
177:
223:
181:
155:
169:. With wings folded, the M.N.5 was 3 m (9 ft 10 in) wide.
127:
234:
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146:. Upper and lower wings were braced together with conventional N-form
219:, each identical to each other and to the rudder, keeping costs down.
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became insolvent in 1930, so only one was completed.
375:
145 km/h (90 mph, 78 kn) at sea level
172:The M.N.5 was powered by a 60 kW (80 hp)
435:
240:It flew for the first time on 21 August 1932 from
215:could be adjusted in flight. There were separate
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162:; it also carried the M.N.5's full span, narrow
203:was steel-framed and fabric-covered with a
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381:110 km/h (68 mph, 59 kn)
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399:65 km/h (40 mph; 35 kn)
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184:. The mostly wooden fuselage had four
62:Józef Medwecki and Zygmund Nowakowski
442:. London: Putnam Publishing. p.
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260:aeroclub in 1931 and, registered as
222:The M.N.5 had a wide track, divided
207:that extended down to the keel. The
484:1930s Polish civil trainer aircraft
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256:The lone example was bought by the
130:and a large interplane gap to ease
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14:
495:
313:2.85 m (9 ft 4 in)
267:
199:Its curved and slightly pointed
24:
479:Single-engined tractor aircraft
319:23 m (250 sq ft)
307:9 m (29 ft 6 in)
1:
403:
393:4,800 m (15,700 ft)
88:Medwecki and Nowakowski M.N.5
122:The wood-framed M.N.5 was a
7:
340:780 kg (1,720 lb)
295:One or two passengers/pupil
10:
500:
348:Armstrong Siddeley Genet I
438:Polish Aircraft 1893-1939
354:, 60 kW (80 hp)
334:410 kg (904 lb)
233:from the stub wing and a
138:and largely covered with
90:was an economical Polish
23:
18:
174:Armstrong Siddeley Genet
280:General characteristics
154:. As well as replacing
102:Design and development
142:, together with some
434:Cynk, Jerzy (1971).
252:Operational history
213:angle of incidence
124:single bay biplane
148:interplane struts
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83:
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391:Service ceiling:
368:
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92:trainer aircraft
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41:Type of aircraft
38:trainer aircraft
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70:21 August 1930
48:National origin
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397:Landing speed:
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373:Maximum speed:
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268:Specifications
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180:enclosed by a
176:five-cylinder
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453:0-370-00085-4
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379:Cruise speed:
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338:Gross weight:
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332:Empty weight:
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328:Göttingen 593
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242:Poznań-Ławica
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224:undercarriage
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194:trailing edge
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178:radial engine
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67:First flight
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350:5-cxylinder
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182:Townend ring
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156:flying wires
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87:
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76:Number built
366:Performance
358:Propellers:
344:Powerplant:
275:Cynk (1971)
468:Categories
404:References
385:Endurance:
317:Wing area:
235:radius arm
231:oleo strut
305:Wingspan:
293:Capacity:
289:One pilot
273:Data from
217:elevators
209:tailplane
201:empennage
186:longerons
59:Designer
474:Biplanes
360:2-bladed
190:cockpits
167:ailerons
160:dihedral
116:Sido S.1
444:348-380
324:Airfoil
311:Height:
299:Length:
258:Vilnius
228:Vickers
144:plywood
132:cockpit
128:stagger
96:Samolot
450:
352:radial
262:SP-AEH
205:rudder
140:fabric
114:, the
53:Poland
36:Civil
19:M.N.5
287:Crew:
164:chord
136:spars
126:with
112:PZL 5
33:Role
448:ISBN
387:4 hr
346:1 ×
152:root
108:LOPP
86:The
211:'s
470::
446:.
412:^
80:1
456:.
326::
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