Aircraft Data Sheet: Wyvern TF MK 2, T MK 3 & S MK 4

First flight:	22nd March 1949. (Armstrong Siddeley Python)
Span:	13.41m/44ft 0ins.
Length:	12.88m/42ft 3ins
Max weight:	11,113kg/24,500lb
Max level speed:	333knots/616kph
Power plant:	One 4,110shp/3,065kW Armstrong-Siddeley Python
Total built:	111 including prototypes

In view of the problems with the Eagle engine it was decided to install one of the new turboprop engines. Two were available: The 4,030shp/3,005kW Rolls-Royce Clyde and the 4,110shp/3,065kW Armstrong-Siddeley Python, both units were tested and the Python selected.

The programme continued to be bedevilled with problems and it was not until 1953 that the first Wyverns entered service, The type saw action at Suez in 1956 but was eventually withdrawn from service in 1958.