Albatros L 72
Albatros L 72 | |
---|---|
![]() An L 72 a with the serial number 10074 and the nickname "BZII" |
|
Type: | Cargo plane |
Design country: | |
Manufacturer: | |
First flight: |
1926 |
Number of pieces: |
3 |
The Albatros L 72 was a single-engine, double-decker transport aircraft made by the Berliner Albatros Flugzeugwerke in the 1920s. It was developed for Ullstein Verlag to transport newspapers between German cities. A single, revised sample was built for the Hamburg foreign newspaper . This machine was in operation in the North Sea Bathing Service.
construction
The L 72 was a single-engine biplane with a conventional configuration and wings of the same span. The metal wing had two box spars made of Dural, welded tubular steel ribs and a canvas covering. The identical upper and lower wings were connected to one another by N struts. In addition, the L 72 was the first German commercial aircraft to have slotted, retractable slats ( Lachmann flaps) and landing flaps coupled to them.
The hull consisted of a welded tubular steel frame, which was clad with sheet metal in the bow. The rest of the outer skin was stretched with canvas. The half-open pilot's cockpit was separated from the closed payload cabin . Both were accessible through separate side doors. As a cargo plane, the largest loading area for newspaper loads was 1.7 m². The discharge chute with a clear width of 40 × 56 cm was closed by a swiveling double seat. Another folding seat for 2 people was on the front wall.
The chassis had a continuous axle and had compression rubber suspension with oil damping. The tail wheel had a simple compression rubber suspension .
Versions
- L 72 a - two aircraft for Ullstein AG (D-888, serial number 10074; D-890, 10075)
- L 72 b - converted L 72 a, both of which received an enlarged wing area and modified flaps in the winter of 1926/1927
- L 72 c Albis - an airplane for the Hamburger Fremdblatt (D-1140, serial number 10108)
Technical specifications
Parameter | Data |
---|---|
crew | 2 |
Passengers | 4 or 400 kg freight |
length | 10.50 m |
span | 13.00 m |
height | 3.60 m |
Wing area | 44.5 m² |
Empty mass | 1345 kg |
Takeoff mass | 3090 kg |
Top speed | 160 km / h |
Cruising speed | 153 km / h |
Landing speed | 85 km / h |
Service ceiling | 3100 m |
Engines | a BMW IV - six-cylinder - line engine with 180 kW (240 hp) |
See also
Web links
- Albatros L 72c "Albis". Retrieved on September 11, 2017 (article onlassiker-der-luftfahrt.de).
- The Albatros L 72 cargo and transport aircraft.Retrieved on November 9, 2017 (contribution by the German Aviation History Working Group).
- histaviation.com ( Memento from November 4, 2013 in the Internet Archive ) (English)