| Albatros L.57 | |
|---|---|
| Role | Six passenger airliner |
| National origin | Germany |
| Manufacturer | Albatros Flugzeugwerke |
| First flight | 1922 |
The Albatros L.57 was
Design and development
editAfter the 1918 Armistice the German aircraft industry was heavily controlled by the [[Allies] and there was a period during which all construction was banned and large numbers of military machines destroyed but by June 1920 20 manufactures had been given clearance to resume some activities. Any production had to be agreed by the Committee of Guaranties and was close scrutiny of each proposed type to ensure it was a true civil aircraft, not a military type in disguise.[1]
Design of the L.57 was started in 1920 and construction of four was under way when the factory was inspected in February 1921; as a result all material was confiscated. One L.57 was required to be delivered to France but it is not known if it ever flew. Despite this, in November Albatros were offering the L.57 to Denmark as a military transport. In May 1922 an Albatros type (unspecified but probably the L.57) had been approved as a civilian. Approval of its bigger successor, the L.58, did not come until June 1923 but despite the gap there is no solid (R&R describe this as an "enigmatic" period is Albatros' history) evidence that an L.57 was completed or flown.[1] (In agreement with the NACA report)
NACA report names the built aircraft L.58 (they describe the L.57 as unbuilt*), 16 m span The dimensions broadly agree with Lailes, though not Flight, even when overhang removed.
- some illegally built, according to R&R, p.54. R&R has more on the L.57 pp.89-90.
18 m span and two versions with Falcon the L.58a
German Wki: article + useful ref book: like histav, the L.58 and L.58a are compared and spans given as 18 m.
14.17 m was span of L57, which had noticeably lower AR.(Ref 1)
[1] L'aeroplane
Another L'Aerophile source : https://gallica.bnf.fr/ark:/12148/bpt6k6554866j/f322
https://www.flightglobal.com/pdfarchive/view/1922/1922%20-%200587.html Flight]
Lailes 1922 Choice from 3 German engines, no RR
ONE FOR THE LONG TERM, BACK TO THE HANGER PERHAPS?
Specifications (BMW engine)
edit
Data from Les Ailes, March 1922[3]
General characteristics
- Crew: Two, pilot and mechanic
- Capacity: Six passengers
- Length: 10.41 m (34 ft 2 in)
- Wingspan: 16 m (52 ft 6 in) including aileron tips
- Height: 4 m (13 ft 1 in)
- Wing area: 35 m2 (380 sq ft)
- Gross weight: 1,910 kg (4,211 lb)
- Useful load: 160 kg (350 lb)
- Fuel capacity: 159 kg (351 lb)
- Powerplant: 1 × BMW IIIa water-cooled, six cylinder inline, 138 kW (185 hp)
- Propellers: 2-bladed
Performance
- Maximum speed: 154 km/h (96 mph, 83 kn) at sea level
- Endurance: 4 hr
- Service ceiling: 3,960 m (12,990 ft)
- Time to altitude: 8 min to 1,000 metres (3,300 ft)
References
edit- ^ a b Cite error: The named reference
R&Rwas invoked but never defined (see the help page). - ^ "An Albatros commercial machine". Flight. XII (50): 1251. 9 November 1920.
- ^ Lémonon, E-H (2 March 1922). "Le monoplan Albatros". Les Ailes (37): 2–3.
Category:German airliners 1920–1929 Category:Albatros aircraft