The B III was a biplane designed for touring and sports flying, and aimed at low landing speed rather than high top speed. Of wooden construction, the oval fuselage was covered with plywood, while the wing and tail surfaces were covered with fabric. Powerplant was a 60 hp Wright (Lawrence) L-4 three-cylinder air-cooled radial engine. It first flew in 1925, and reportedly was later used by the Nationalsozialistisches Fliegerkorps (National Socialist Flyers Corps), a flying "club" used to mask the training of future military pilots. Its fate is unknown.
Span: 26 ft 10.8 in (8.20 m)
Length: 19 ft 5.5 in (5.93 m)
Wing area: 192.67 sq.ft (17.90 sq.m)
Empty weight: 650 lb (295 kg)
Loaded weight: 1,179 lb (535 kg)
Max speed: 84 mph (135 kmh)
Landing speed: 37 mph (60 kmh)
Climb: to 3,281 ft (1,000 m) 5 min
Range: 497 mls (800 km)."
03/31/2011. Remarks by Dan Shumaker: "The Alster is the river which flows through Hamburg, so the type name Alsterkind means something like 'child of the Alster river'."