Albatros L 73
| Albatros L 73 | |
|---|---|
 The D-961 “Brandenburg” in 1927 at the inauguration of the Stettin airfield . Second from the left of the Stockholm municipal council Yngve Larsson |
|
| Type: | Airliner |
| Design country: | |
| Manufacturer: | |
| First flight: |
1926 |
| Number of pieces: |
4th |
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The Albatros L 73 was a twin-engine, as biplane out deliberate airliner of Berlin Albatros Aircraft Works from the 1920s. It became known as the "sleeper plane".
history
Albatros began developing a passenger aircraft suitable for night flights in 1926. It was given a closed cabin with eight seats that could be converted into four beds. In order to reduce air resistance, the hull and engine pods were designed in the shape of a boat.
Various BMW engines, located between the upper and lower wing, served as drive . The first two aircraft initially received Junkers L-5 engines, but were converted to BMW Va engines in 1928 .
The first flight of the L 73 took place in 1926, and from the following year it operated the night connection between Berlin and Königsberg . The routes from Berlin to Vienna and Malmö were added later .
All four machines built were initially owned by Luft Hansa . The D-961 Brandenburg crashed on May 28, 1928 near Babekuhl . Luft Hansa sold two aircraft to Bulgaria in 1931 , the fourth, the D-960 Prussia , was decommissioned in 1932 and handed over to the German Aviation Research Institute in 1933 .
Technical specifications
| Parameter | Data |
|---|---|
| crew | 2 |
| Passengers | 8th |
| length | 14.60 m |
| span | 19.70 m |
| height | 4.70 m |
| Wing area | 92 m² |
| Empty weight | 2910 kg |
| Takeoff weight | 4600 kg |
| Cruising speed | 158 km / h |
| Top speed | 180 km / h |
| Service ceiling | 3000 m |
| Range | 600 km |
| Engines | two six-cylinder in-line BMW IV engines with 235 kW (320 hp) each |
See also
literature
- Horst W. Laumanns: German airliners since 1919. Motorbuch Verlag, ISBN 978-3-613-02975-0 .
