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Arado Ar 77
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The Arado Ar 77 was a German twin-engined monoplane, designed as an advanced training aircraft, from 1934.
Design & development
The Ar 77 had a thick cantilevered wooden wing which was skinned with plywood on the under-surfaces and covered with fabric on the upper surfaces. The fuselage was built up from welded steel tubing covered with fabric. Tail surfaces were built up from steel tubing and were also fabric covered,not following Arado's trademark layout of a fin and rudder forward of the tailplane;instead the tailplane was high mounted on the fin and supported by steel tube 'N' struts. Elevators and rudder were covered with fabric, aerodynamically balanced in the Ar 77A and without aerodynamic balance horns in the Ar 77B. The fixed tailwheel undercarriage consisted of cantilevered oleo-pneumatic main-leg struts fitted with brakes and a tail-wheel under the rear fuselage. The four crew members, being Pilot, Navigator or Instructor, and two Students, were accommodated in a cabin with full length windows along the fuselage sides.[2]
The Arado Ar 77 was characterised by the relatively low placement of its engines in relationship to the wings. There was room for two people in the cockpit, and four other people, such as radio operators, in the fuselage. However, the Luftwaffe criticized the aircraft, instead, preferring the Focke-Wulf Fw 58.
Variants
Data from:[1]
- Ar 77a
- The first prototype crew trainer, constructed using Duralumin and wood.
- Ar 77b
- The second prototype constructed largely of wood
- Ar 77A
- The proposed production version of the Ar 77a
- Ar 77B
- A proposed version with tail surfaces that were not aerodynamically balanced, based on the Ar 77b.
Specifications (Ar 77A)
Data from Die Deutsche Luftrüstung 1933-1945[2]
General characteristics- Crew: 2
- Capacity: 2 students
- Length: Script error: No such module "convert".
- Wingspan: Script error: No such module "convert".
- Height: Script error: No such module "convert".
- Wing area: Script error: No such module "convert".
- Empty weight: Script error: No such module "convert".
- Max takeoff weight: Script error: No such module "convert".
- Fuel capacity: fuel Script error: No such module "convert". + oil Script error: No such module "convert".
- Powerplant: 2 × Argus As 10C 8-cylinder inverted-V air-cooled, Script error: No such module "convert". each
- Propellers: 2-bladed wooden propeller, Script error: No such module "convert". diameter
Performance
- Maximum speed: Script error: No such module "convert". at sea level
- Cruising speed: Script error: No such module "convert".
- Stall speed: Script error: No such module "convert".
- Range: Script error: No such module "convert".
- Service ceiling: Script error: No such module "convert".
- Rate of climb: Script error: No such module "convert".
- Time to altitude: Script error: No such module "convert". in 3.5 minutes
Notes
- ^ a b Green, William (2010). Aircraft of the Third Reich 1 (1st ed.). London: Aerospace Publishing Limited. p. 36. ISBN 978-1-900732-06-2.
- ^ a b Nowarra, Heinz J. (1993). Die Deutsche Luftrüstung 1933-1945 : Band 1 Flugzeugtypen AEG - Dornier (1st ed.). Germany: Bernard & Graefe Verlag. ISBN 978-3-7637-5465-6.
References
- Michael J. H. Taylor, Jane's Encyclopedia of Aviation. Studio Editions, London (1989)
- Nowarra, Heinz J. (1993). Die Deutsche Luftrüstung 1933-1945 : Band 1 Flugzeugtypen AEG - Dornier (1st ed.). Germany: Bernard & Graefe Verlag. ISBN 978-3-7637-5465-6.