Pratt & Whitney J48

J48
A Pratt & Whitney J48
Type Turbojet
National origin United Kingdom/United States
Manufacturer Pratt & Whitney
Major applications Grumman F9F Panther
Grumman F-9 Cougar
Lockheed F-94 Starfire
Number built 4,108
Developed from Rolls-Royce RB.44 Tay

The Pratt & Whitney J48 (company designation JT7 Turbo-Wasp) is a turbojet engine developed by Pratt & Whitney as a license-built version of the Rolls-Royce Tay. The Tay/J48 was an enlarged development of the Rolls-Royce Nene (Pratt & Whitney J42).