Napier Scorpion
| Country of origin | United Kingdom |
|---|---|
| Manufacturer | Napier |
| Application | aircraft booster |
| Liquid-fuel engine | |
| Propellant | hydrogen peroxide / kerosene |
| Performance | |
| Thrust | 4,000 lbf (17.8 kN) |
The Napier Scorpion was a British liquid-fuelled rocket engine developed and manufactured by Napier. It used hydrogen peroxide / kerosene propellant chemistry.[1]
Scorpion
The first Scorpion NSc.1 was successfully flight-tested in an Canberra.[2]
Double Scorpion
| File:Double Scorpion, RAF Museum London.jpg
Double Scorpion, RAF Museum London
|
|
| Manufacturer | Napier |
|---|---|
| Application | aircraft booster |
| Predecessor | Napier Scorpion |
| Liquid-fuel engine | |
| Propellant | hydrogen peroxide / kerosene |
| Configuration | |
| Chamber | two |
| Performance | |
| Thrust | 8,000 lbf (35.6 kN) |
| Dimensions | |
| Length | 856mm (33.7in) |
| Diameter | 584mm (23in) |
| Dry weight | 98kg (216lb) |
| Application | aircraft booster |
|---|---|
| Predecessor | Napier Double Scorpion |
| Liquid-fuel engine | |
| Propellant | hydrogen peroxide / kerosene |
| Configuration | |
| Chamber | three, independently fired |
| Performance | |
| Thrust | 12,000 lbf (53.4 kN) |
From 1956 the Double Scorpion NScD.1 [3] was fitted experimentally to two Canberra light bombers, to improve high altitude performance.[2][4]
A world altitude record of 70,300 feet (21,427 m) was set by Canberra WK163 on 28 August 1957.[5] This was on the eve of cancellation of manned aircraft programmes by the 1957 Defence White Paper.
The Double Scorpion was also considered for use in the English Electric P.1A interceptor (which gave rise to the Lightning).[2] The company Aerojet General was chosen for United States production.[6]
Cancellation
The Scorpion project was cancelled in February 1959, at a reported total cost of £1.25 million.[7]
Notes and references
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Aviation rocket engines and rocket motors
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| Liquid fuel |
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| Hybrid Propellant | ||
| Solid Propellant | ||
| Related articles | ||
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