| JT12 | |
|---|---|
 A Cutaway JT12A Turbojet | |
| Type | Turbojet |
| National origin | United States |
| Manufacturer | Pratt & Whitney |
| First run | 1957 |
| Major applications | North American Sabreliner |
| Number built | 800+[1] |
| Variants | Pratt & Whitney T73 |
ThePratt & Whitney JT12 (US military designationJ60) is a smallturbojet engine. ThePratt & Whitney T73 (Pratt & Whitney JFTD12) is a related turboshaft engine.[2]
The J60 conception and project design began in July 1957 at United Aircraft of Canada (nowPratt & Whitney Canada) inMontreal. The project design details were transferred to the main P&W company inEast Hartford and in May 1958, the first prototype, with military designation YJ60-P-1 commenced testing.
Flight tests were completed in early 1959; followed by the delivery of the new JT12A-5 engines in July 1959. These were for the twoCanadair CL-41 prototype trainers with a rating of 12.9 kN (2,900 lb st). The modified JT12A-3 turbojets with a basic rating of 14.69 kN (3,300 lb st) were tested in the two LockheedXV-4A HummingbirdVTOL research aircraft. The next version, JT12A-21, had an afterburner which delivered a maximum thrust of 17.91 kN (4,025 lb st).
Data from Aircraft engines of the World 1966/67[4]
Related development
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