General Electric J31
| J31 | |
|---|---|
| General Electric J31 turbojet engine | |
| Type | Turbojet |
| National origin | United States |
| Manufacturer | General Electric |
| First run | April 1943 |
| Major applications | P-59 Airacomet Ryan FR Fireball |
| Number built | 241 |
| Developed from | General Electric I-A |
| Developed into | General Electric I-40/Allison J33 |
The General Electric J31 was the first jet engine to be mass-produced in the United States.