124:, to spend a semester designing a competitor. Fiedler and Schwarz invited Tasso Proppe, experienced in glider building, to manage the new workshop. Schwarz himself took charge of the project after Fiedler's return to the Akaflieg and it was not until the autumn of 1936 that the Ru.3 made its first flight, piloted by Hanns Schwarz. Later, other pilots including Proppe and a commercial pilot named Trudel flew the aircraft, which they found fast and very manoeuvrable, as required for combat practice.
106:, best known as locomotive builder was one; another, less familiar was the Ruhrtaler Maschinenfabrik Schwarz and Dyckerhoff who built small Diesel engined locomotives for underground use in the mining industry. They became involved in aviation through the enthusiasm of Hanns Schwarz, son of the founder of the firm.
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on each side from the upper longerons to the wing spar and by further struts from the spar at the centre of the wing. The open cockpit placed the pilot on the line of the outer trailing edge, looking forward between wing and fuselage. Both upper and lower fuselage cross sections were rounded and the
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On 1 November 1936 representatives of the Reich Air
Ministry attended a demonstration of its capabilities. The morning session was a success but during an afternoon exhibition of the Ru.3's flight characteristics Schwarz got into a
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designed to take pilots to combat standards. Initial flying tests showed promise but the owner of
Ruhrtaler cancelled all aeronautical activity after his son was killed whilst demonstrating the Ru.3 to the Air Ministry.
230:. There was also a small tailskid. The Ru.3 was unarmed but instead was fitted with a camera for recording success or otherwise in combat simulations with another aircraft.
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legs which leant inward to the upper longerons at the same points as the wing struts. Each axle was attached to a pair of V-struts, hinged on the fuselage underside and
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had been approached but their work progressed very slowly despite the likely order for 180 aircraft. Meanwhile, Ruhrtaler had persuaded Willy
Fiedler, a member of the
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and was killed. His father immediately cancelled all aeronautical activity in his firm. The contract for an advanced trainer had gone to the
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was mounted on steel bearers attached to the forward end of the fuselage frame. It produced 99 kW (133 hp) and drove a two blade
190:. Its fuel tank was in the fuselage aft of the engine firewall. The wing was held a little above the fuselage by a short, outward leaning
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The expansion of the German aircraft industry from 1932 attracted several industrial concerns not previously involved in aviation.
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Around 1933, a manoeuvrable high performance single-seat advanced trainer was needed to train fighter pilots for combat.
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was unswept. The tips were elliptical and there was a wide but shallow cut-out to assist the pilot's upward view.
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and vertical tail had straight edges and rounded tips, with the tailplane mounted at mid-fuselage height. Both
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formed an almost rectangular quadrilateral, with the upper side slightly wider than the underside. Its
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aircraft of mixed construction. Its one piece wing was built around a single wooden
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were broad at the base, the latter extending to the keel and moving in a small
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covering forward of it forming a torsion resistant box. Elsewhere the wing was
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were hinged on an auxiliary spar and extended to the wing tips. In plan the
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394:] (in German). Baden-Baden: Modellsport Verlag GMBH. pp. 116–120.
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was a steel tube lattice structure, largely fabric covered. Four
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sides appeared faceted, shaped by stringers. The tapered
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Kens (2011) Dimensions and weights are approximate.
392:Historic German Aircraft before 1945 volume 1
388:Historische Deutsche Flugzeug bis 1945 band 1
8:
299:inverted, 99.2 kW (133.0 hp)135 PS
329:210 km/h (130 mph, 110 kn)
323:240 km/h (150 mph, 130 kn)
139:The Ruhrtaler Ru.3 was a single engine,
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422:1930s German military trainer aircraft
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341:62 kg/m (13 lb/sq ft)
267:10.0 m (32 ft 10 in)
163:was swept back at about 9° but the
89:was a German advanced single-seat
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273:13.0 m (140 sq ft)
261:6.8 m (22 ft 4 in)
222:mainwheels were mounted on long
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335:4,600 m (15,100 ft)
27:Advanced single-seat trainer
285:800 kg (1,764 lb)
279:600 kg (1,323 lb)
50:Ruhrtaler Maschinenfabrik,
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216:conventional undercarriage
182:B four cylinder inverted
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386:Kens, Karlheinz (2011).
350:0.12 kW/kg (0.076 hp/lb)
246:General characteristics
214:The Ru.3 had a fixed,
136:after trials in 1935.
98:Design and development
122:Stuttgart University
401:978-3-923142-39-2
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333:Service ceiling:
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293:Argus 8B serie 3
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134:Focke-Wulf Fw 56
120:associated with
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29:Type of aircraft
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305:2-bladed fixed
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36:National origin
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19:Ruhrtaler Ru.3
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321:Maximum speed:
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295:four cylinder
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234:Specifications
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153:fabric covered
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87:Ruhrtaler Ru.3
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61:Willy Fiedler
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161:leading edge
141:parasol wing
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75:Number built
69:Autumn 1936
314:Performance
303:Propellers:
289:Powerplant:
360:References
346:Power/mass
271:Wing area:
192:lift strut
180:Argus As 8
265:Wingspan:
239:Data from
228:faired in
211:cut-out.
197:tailplane
188:propeller
176:longerons
147:, with a
115:Stuttgart
58:Designer
416:Category
209:elevator
172:fuselage
157:ailerons
118:Akaflieg
104:Henschel
259:Length:
220:spatted
218:. The
149:plywood
91:trainer
52:Mülheim
41:Germany
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297:inline
205:rudder
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307:pitch
253:Crew:
111:Klemm
24:Role
396:ISBN
291:1 ×
203:and
170:Its
145:spar
130:spin
85:The
255:One
201:fin
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368:^
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