| ASh-73 | |
|---|---|
| Type | Radial engine |
| National origin | Soviet Union |
| Manufacturer | Shvetsov (OKB-19) |
| First run | 1946 |
| Major applications | Beriev Be-6 Tupolev Tu-4 |
| Number built | 14,310 |
| Developed from | Shvetsov M-71 |
The Shvetsov ASh-73 was an 18-cylinder, air-cooled, radial aircraft engine produced between 1947 and 1957 in the Soviet Union. It was primarily used as the powerplant for the Tupolev Tu-4 heavy bomber, an unlicensed, reverse engineered copy of the American Boeing B-29 Superfortress.