| He 51 | |
|---|---|
 | |
| General information | |
| Type | Biplane fighter-bomber |
| Manufacturer | Heinkel |
| Designer | |
| Status | Retired |
| Primary user | Luftwaffe |
| Number built | 700[1] |
| History | |
| Introduction date | July 1934 |
| First flight | May 1933 |
| Retired | 1939 (Luftwaffe) 1952 (Spanish Air Force) |
| Developed from | Heinkel He 49 |
The Heinkel He 51 was a German single-seat biplane fighter aircraft. A seaplane variant and a ground-attack version were also developed. It was a development of the earlier He 49.