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Albatros L 73

The Albatros L 73, a twin-engined biplane airliner from Germany in the 1920s, had a traditional design with a sleek, boat-like fuselage and engine nacelles.

All four planes of this model were used by Deutsche Luft Hansa, with one (Brandenburg, D-961) crashing near Babekuhl on May 28, 1928.

Subsequently, these aircraft were sold to the Bulgarian Air Force to be used as bomber trainers.





14.6 m (47 ft 11 in)


19.7 m (64 ft 8 in)


4.7 m (15 ft 5 in)

Wing area

92 m2 (990 sq ft)

Empty weight

2,914 kg (6,424 lb)

Gross weight

4,610 kg (10,163 lb)


2 × BMW IV, 6-cylinder,

Water cooled Inline engine,

180 kW (240 hp) each


Maximum speed

145 km/h (90 mph, 78 kn)


540 km (340 mi, 290 nmi)

Service ceiling

3,000 m (9,800 ft)

Time to altitude

14 minutes to 1,000 m (3,300 ft).

German & Austro-Hungarian aircraft manufacturers 1908–1918-T C Treadwell.
German Aircraft of the First World War-Peter Gray & Owen Thetford.
Flugzeug Publications, Die Deutsche Luftwaffe 1914 – Heute.
The World’s Great Bombers: 1914 to the Present Day-C Chant.
Windsock Worldwide Vol.25, No.5 – September October 2009.
Albatros Aircraft of WWI Vol.1: Early Two-Seaters-Jack Herris.
Albatros Aircraft of WWI Vol.2: Late Two-Seaters-Jack Herris.
Albatros Aircraft of WWI Vol.3: Bombers, Seaplanes J Types-Jack Herris.
Albatros Aircraft of WWI Vol.4: Fighters-Jack Herris.


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