Bristol Siddeley Orpheus

Orpheus
Orpheus on display at the Flugausstellung Hermeskeil
Type Turbojet
National origin United Kingdom
Manufacturer Bristol Siddeley
First run 1957
Major applications Fiat G.91
Folland Gnat
Fuji T-1
HAL HF-24 Marut
Developed into Rolls-Royce Pegasus

The Bristol Siddeley Orpheus is a single-spool turbojet developed by Bristol Siddeley for various light fighter/trainer applications such as the Folland Gnat and the Fiat G.91. Later, the Orpheus formed the core of the first Bristol Pegasus vectored thrust turbofan used in the Harrier family.