Bristol Siddeley BS.100
Prototype Bristol Siddeley BS.100 engine preserved at the Fleet Air Arm Museum in Yeovilton, UK. The BS.100 was a vectored thrust turbofan engine developed in the early 1960's and intended to power the proposed Hawker Siddeley P.1154 VSTOL fighter, a supersonic development of the P.1127 (precursor to the Harrier). This example is mounted upside down as it would have been during the testing programme to simplify access to the accessories and nozzle systems.
Similar in layout to the BS.53 Pegasus engine which powered the P.1127 (and subsequently Harrier), the BS.100 was much larger and more powerful being based on the Olympus 300 series core. It also incorporated Plenum Chamber Burning (PCB), a form of reheat where additional fuel was injected and ignited in the front bypass air nozzles. This produced a maximum thrust of 35,000 lbs which would have given the P.1154 supersonic performance.
The BS.100 was cancelled along with the P.1154 in February 1965 and ultimately the Rolls Royce Spey powered F-4K / F-4M Phantom was purchased from USA instead to fill the role the P.1154 was intended for.
Bristol Siddeley BS.100
Prototype Bristol Siddeley BS.100 engine preserved at the Fleet Air Arm Museum in Yeovilton, UK. The BS.100 was a vectored thrust turbofan engine developed in the early 1960's and intended to power the proposed Hawker Siddeley P.1154 VSTOL fighter, a supersonic development of the P.1127 (precursor to the Harrier). This example is mounted upside down as it would have been during the testing programme to simplify access to the accessories and nozzle systems.
Similar in layout to the BS.53 Pegasus engine which powered the P.1127 (and subsequently Harrier), the BS.100 was much larger and more powerful being based on the Olympus 300 series core. It also incorporated Plenum Chamber Burning (PCB), a form of reheat where additional fuel was injected and ignited in the front bypass air nozzles. This produced a maximum thrust of 35,000 lbs which would have given the P.1154 supersonic performance.
The BS.100 was cancelled along with the P.1154 in February 1965 and ultimately the Rolls Royce Spey powered F-4K / F-4M Phantom was purchased from USA instead to fill the role the P.1154 was intended for.