The Daimler L20, later known as the Klemm-Daimler L20, was one of the first light aircraft to be built in significant numbers. A two-seater with an engine of only 20 hp (15 kW), it demonstrated the ability of a small aircraft to cope with flights over the Alps in winter and to make transcontinental journeys of over 36,000 km.

Designer Hanns Klemm
First flight: 1924

General characteristics

Crew: two
Wingspan: 13.0 m (42 ft 8 in)
Wing area: 20.0 m2 (215 sq ft)
Empty weight: 265 kg (584 lb)
Gross weight: 450 kg (992 lb)
Wing loading: 22.5 kg/m2(4.60 lb/sqft)
Powerplant: 1 × Mercedes F7502a 885 cc, air-cooled flat twin, 15 kW (20 hp) 20 PS
Propellers: 2-bladed
Power loading: 30 kg/kW (50 lb/hp)

Performance

Maximum speed: 105 km/h (65 mph, 57 kn)
Range: 480 km (300 mi, 260 nmi)
Service ceiling: 4,100 m (13,500 ft)
Time to altitude: 12.6 min to 1,000 m (3,281 ft)
Landing speed: 42 km/h (26 mph)

The Aguinaga Museum of Mercedes-Benz

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