Armstrong Siddeley Stentor
| Stentor | |
|---|---|
| Stentor rocket engine showing the large main nozzle (top) and the smaller cruise nozzle (bottom) | |
| Type | Rocket engine |
| National origin | United Kingdom |
| Manufacturer | Armstrong Siddeley |
| First run | c.1960 |
| Major applications | Blue Steel missile |
The Armstrong Siddeley Stentor, latterly Bristol Siddeley BSSt.1 Stentor, was a two-chamber HTP rocket engine used to power the Blue Steel stand-off missile carried by Britain's V bomber force. The high thrust chamber was used for the first 29 seconds, after which it was shut down and a smaller cruise chamber was used for the rest of the powered flight.