WNF 342 (plane)

ドブルホフ WNF 342

• A use: Experiment helicopter
• A designer: Friedrich phone ドブルホフ (Frederich von Doblhoff)
• A manufacturer: Wiener ノイシュタット aviation (Wiener-Neustadter Flugzeugwerke)
• Maiden flight: 1943
• The number of the production: Three planes

Indication

ドブルホフ WNF 342 (Doblhoff WNF 342) is the first helicopter which let taking off and landing succeed by the rotor drive type using the tip jet.

Table of contents

Development

WNF-342 was designed for the German navy which required machine parts for the reconnaissance that I could manage by small vessels and U-boat [¹].

A normal reciprocating engine drove the both sides of the air compressor which supplied air (be mixed with fuel) to a thrust chamber at the rotor tip through the promotion-type propeller (produces the race to a rudder) of the narrow path, a rotor head and a hollow rotor blade.

Derivation type

As for the V-1 machine of the prototype of the V1/V2's first: model, output 60HP (45kW), the V-two machine were equipped with a product made in Walter micron engine of output 90HP (67kW). Make the first flight in 1943 [²]; with a V4 machine in Zell アム ゼー by the alliance national military 鹵獲 [1].

The prototype of the second model to have the rotor of the large diameter V3. I fall during a test flight.

With コレクティブピッチ control and the cyclic control that are new as for the last body produced V4 was a double seats type [^{explanation required}]. After having test-piloted 25 hours, left 鹵獲 in the United States Armed Forces [³] and you were loaded in a carrier leaper as part of Rusty strategy on July 19, 1945 and were sent to the United States [2].

Existence machine

• A V4 machine is stored in Smithsonian Museum of the United States of America.

Essential points

(V4) Illustrated Encyclopedia of Aircraft^[2]

• A crew: Two people
• Full length:
• Overall width:
• Overall height:
• A main rotor diameter: 10.00m (32 ft 9 ³⁄4 in)
• A main rotor turn area: 78.54^m2 (845.42 ft²)
• Emptiness weight: 430 kg (948 lb)
• Gross weight: 640 kg (1411 lb)
• Maximum takeoff weight:
• An engine: 1* BMW- ブラモ Sh 14A air-cooling star type engine, 104kW (140 hp)
• The maximum speed: 48km/h (30mph)
• Cruising speed:
• A flying range:
• Cruising altitude:
• The rate of climb:

Allied item

• List of helicopters

Source

1. ^ "Doblhoff." Hubschrauber Museum. August 15, 2009 reading.
2. ^ ^{a b} Orbis 1985, pp. 1454–1455
3. ^ Apostolo, Giorgio. The Illustrated Encyclopedia of Helicopters, pp. 18, 126. Bonanza Books, New York, 1984. ISBN 0-517-43935-2.

• The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. 

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