J
- J.A.P.
- Almen
- J.A.P. - UK
- Jabiru Aircraft — Australia
- Jacobs — U.S.
- Jalbert-Loire
- Jameson
- Janowski
- Roché
- Jendrassik
- Johnson
- JPX - France
- Junkers — Germany
- Junkers
Read more about this topic: List Of Aircraft Engine Manufacturers
J
Read more about this topic: List Of Aircraft Engine Manufacturers