LFG V 39

V 39

Role	Training aircraft
National origin	Germany
Manufacturer	LFG (Luft-Fahrzeug-Gesellschaft)
First flight	1925 or earlier

The LFG V 39 was a simple biplane trainer built in Germany in the mid-1920s. It took part in the Round Germany Flight in the summer of 1925.

Design and development

The V 39 was a two bay biplane with constant chord wings mounted with slight stagger and a wide gap. The fabric covered wings had box spars and three-ply ribs.^[1] There were ailerons on both upper and lower wing, externally rod-connected. The upper wing was centrally supported with cabane struts.^[2]

The trainer was designed to be powered by a 75 kW (100 hp) Mercedes D.I or 89 kW (120 hp) D.II engine.^[1] It is known that the smaller engine at least was flown.^[2] The fuselage was deep bellied, flat sided, constructed from wood and covered with three-ply.^[1] There were two open, tandem cockpits, the rear one provided with vision enhancing trailing edge cut-outs in both upper and lower planes. The V 39's undercarriage was standard for the time, with mainwheels on a rigid axle supported by fuselage mounted V-struts and with a tailskid.^[2]

The V 39 was designed to combine modest performance with reliability and robustness with easy handling and a low landing speed.^[1]

Operational history

The V 39 was one of more than ninety aircraft to take part in the Round Germany Flight held in the summer of 1925.^[1]

Specifications

Data from Flight 28 May 1925 p.323^[1]

General characteristics

Length: 7.85 m (25 ft 9 in)
Wingspan: 12 m (39 ft 4 in)
Wing area: 40 m² (430 sq ft)
Empty weight: 803 kg (1,770 lb)
Gross weight: 1,130 kg (2,491 lb)
Powerplant: 1 × Mercedes D.I 6-cylinder water cooled upright inline, 75 kW (100 hp)
Propellers: 2-bladed ^[2]

Performance

Maximum speed: 125 km/h (78 mph; 67 kn)
Service ceiling: 3,800 m (12,500 ft)
Time to altitude: 8 min to 1,000 m (3,280 ft)
Landing speed: 55 km/h (34 mph)

References

Wikimedia Commons has media related to LFG Roland.

1 2 3 4 5 6 "The round-Germany flight". Flight. Vol. XVII no. 22. 28 May 1925. p. 323.
1 2 3 4 "The round-Germany flight. Technical equipment". Flight. Vol. XVII no. 24. 11 June 1925. p. 355.

Aircraft produced by Luft-Fahrzeug-Gesellschaft
LFG-Roland	LFG Roland Arrow C.I C.II C.III C.V C.VIII D.I D.II D.III D.IV D.V D.VI D.VII D.VIII D.IX D.XIII D.XIV D.XV D.XVI D.XVII Dr.I E.I G.I
LFG	W WD
LFG post WWI	V 1 V 2 V 3 V 8 V 13 V 19 V 20 Arkona V 26 V 36 V 39 V 40 V 42 V 44 V 52 V 58 V 59 V 60 V 61 V 101 Jasmund V 130 Strela

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