Daimler L20

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Daimler L20
Replica of a Klemm L20 in the Mercedes-Benz Museum Stuttgart
Type: Light sports and training aircraft
Design country:

German EmpireGerman Empire German Empire

Manufacturer:

Daimler Motor Company

First flight:

1924

Production time:

1924-1928

Number of pieces:

58

The Daimler L20 is a light sports and training aircraft produced by the German manufacturer Daimler-Motoren-Gesellschaft .

history

The Daimler L20 is an aircraft created between 1923 and 1924 by the designer Hanns Klemm . For the design, Klemm was able to secure the support of Martin Schrenk from the Stuttgart Aviation Technical Association . In addition, he was able to persuade Ferdinand Porsche to design the appropriate Daimler F 7502 aircraft engine. After the first flight of the prototypes D-608 (equipped with floats) and D-609, it was slightly improved for series production and renamed the L 20B. The aircraft achieved some records and spectacular flights. In 1928 Ernst Udet landed on the Zugspitz massif with the D-1122 and Friedrich Karl von Koenig-Warthausen set a flight world record with the D-1433 Kamerad (in the USA Huenefeld ) with a non-stop flight from Berlin to Moscow and then became the first solo flier in 1928 / 1929 the world. Despite the good sales success, Daimler stopped producing aircraft after the merger to form Daimler-Benz AG, and so Klemm continued to manufacture the machine under his own name as the Klemm L20 from 1927 . In 1927 it was further developed into the L25 . A total of at least 58 pieces were built in different versions, which differed mainly in the engine used.

construction

The Daimler L20 is a low- wing aircraft made of wood with a square fuselage cross-section and fabric covering. The wings and elevators could be folded in for road transport. An air-cooled two-cylinder boxer engine with an output of 16 kW was used to drive the propeller via the same planetary gear as in the L15 .

Technical specifications

Parameter Data
crew 1
Passengers 1
length 7.27 m
span 13.00 m
height 2.05 m
Wing area 20.0 m²
Wing extension 8.5
Empty mass 265 kg
Max. Takeoff mass 450 kg
Cruising speed 95 km / h
Top speed 105 km / h
Service ceiling 4100 m
Range 480 km
Engines a Daimler F 7502 with 16 kW (20 PS)

See also

literature

  • Marton Szigeti: Good star in the sky. Aircraft report Daimler L 20. In: Aviation classics, 03/2018, pp. 20–27.

Web links

Commons : Daimler L20  - collection of pictures, videos and audio files

Individual evidence

  1. German Postcard (1000aircraftphotos)
  2. FliegerRevue July 2010, pp. 56–59, Hanns Klemm breaks new ground
  3. Klemm L20 B (aviation museum) ( Memento from November 22, 2008 in the Internet Archive )