https://en.wikipedia.org/wiki/Heinkel_HE_12
General characteristics
- Crew: Two, pilot and radio operator
- Capacity: 200 kg (440 lb) of mail
- Length: 11.56 m (37 ft 11 in)
- Wingspan: 16.7958 m (55 ft 1.25 in)
- Height: 4.60 m (15 ft 1 in)
- Wing area: 48.5 m2 (522 sq ft)
- Empty weight: 1,580 kg (3,483 lb)
- Gross weight: 2,600 kg (5,732 lb)
- Powerplant: 1 × Pratt & Whitney Hornet 9-cyl. air-cooled radial piston engine, 370 kW (500 hp)
Performance
- Maximum speed: 134 km/h (83 mph; 72 kn)
- Cruise speed: 192 km/h; 103 kn (119 mph)
- Service ceiling: 3,800 m (12,500 ft)