- Armstrong Siddeley Adder
The Armstrong-Siddeley Adder was an early British
turbojet engine developed by theArmstrong Siddeley company and first run in November 1948.The Adder, a pure-jet derivative of the
Armstrong Siddeley Mamba , was originally developed as an expendable engine to power the Jindivik 1 target drone. The engine was then developed into a longer-life engine before evolving into the more-powerfulArmstrong Siddeley Viper .The Adder was flight tested in the tail of the Avro Lancaster III "SW342", the aircraft also having been previously modified and used for icing trials of the Mamba by Armstrong Siddeley's Flight Test Department at
Bitteswell .pecifications (Adder)
jetspecs
type=Turbojet
length=73.3 in
diameter=28 in
weight=550 lb
compressor=Axial Flow
combustion=
turbine=
fueltype=
oilsystem=
power=
thrust=1,050 lb
compression=
aircon=
turbinetemp=
fuelcon=
specfuelcon=
power/weight=
thrust/weight=References
* "Turbine Test Beds" by Brian Turpin - Part one - "Aeroplane Monthly" February 1980 issue
ee also
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