Disc woodpecker

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Disc woodpecker
Disc woodpecker
Type: Glider
Design country:

Germany Federal RepublicFederal Republic of Germany BR Germany

Manufacturer:

Scheiben-Flugzeugbau GmbH

First flight:

March 1953

Production time:

1953 to about 1960

Number of pieces:

about 50 (with amateur build)

Disc woodpecker

The Scheibe Specht is a two-seater glider made by the manufacturer Scheibe-Flugzeugbau , Dachau.

history

The Specht was designed by Egon Scheibe in the early 1950s as a simply constructed two-seater for beginners' training in accordance with the 1939 Building Regulations for Gliders (BVS). With a glide ratio of 20, the flight performance did not correspond to that of the Mü 13 E , which was built at the same time at Scheibe , but the woodpecker enabled the glider clubs, which were being set up after the war and the subsequent flight ban, a cost-effective entry into two-seater training. Accordingly, the acquisition of licenses and construction plans was possible. The prototype was in March 1953 Hans Zacher examined and on 5 April 1954, the LBA the type certificate issued. By the end of 1954, 30 aircraft had been produced.

construction

The woodpecker is a stripped shoulder-decker in mixed construction. The fuselage consists of a welded tubular steel frame with wooden moldings and fabric covering. The wing is made in a simplified wooden construction in two parts and with two spars. The two wing halves are not connected to each other, but simply fixed to the fuselage with two small bolts and held together by these and the V-struts. The force-absorbing plywood planking extends from the wing nose over the top of the wing to the rear spar. The ailerons are also covered with plywood throughout. The V-legs of the strut are made of profile steel tubing. The two closed seats are located one behind the other, with the rear seat being accessible through a separate fold-up door under the wing, which can also be left out. The woodpecker has a wide, covered main skid made of ash wood with a built-in wheel and a strut damper and a leaf spring spur. Additional tubular steel skids are installed under the wing tips.

use

The woodpecker was mainly used for the two-seat training of pilots. Previously, glider training was usually carried out with single-seat school gliders such as the SG 38 .

particularities

The small spoilers are only effective to a limited extent, which makes learning to do a clean side glide very recommendable. Furthermore, the ailerons are only effective to a very limited extent in aircraft tow, but this can be compensated for by using the rudder. The glide ratio is set at 15 rather than 20 in well-informed circles, which, analogous to the similar Ka 4 “Rhönstein” in southern Germany, also led to the name “Start and Landing Device Specht”. The Specht D-1252 was temporarily approved for lowering parachutists , which made it necessary to partially cover the left V-strut with aluminum sheet. The disc "Sparrowhawk" was essentially based on the woodpecker, but had a widened trunk that accommodated teachers and students side by side.

Technical specifications

Parameter Data
crew 1-2
length 7.42 m
span 13.50 m
Wing area 16.64 m²
Wing extension 10.37
Wing profile Mü 14%
Glide ratio 20th
Slightest sinking 0.8 m / s at 65 km / h
Empty mass 210 kg
Max. Payload 180 kg
Max. Takeoff mass 390 kg
Max. Wing loading 23.4 kg / m²
Minimum speed 50 km / h
Top speed 170 km / h

Preserved copies

See also

literature

  • Karlheinz Kens: Airplane types - type book of international aviation . 4th edition. Carl Lange Verlag, Duisburg 1963

Web links

Commons : Disk Woodpecker  - Collection of images, videos and audio files

Individual evidence

  1. ^ Dietmar Geistmann: Gliders in Germany . 2nd Edition. Motorbuch Verlag, Stuttgart 1994, p. 199 .
  2. ^ "Our aircraft" website from LSV Kreis Springe