The 3ft x 3ft Wind Tunnel
 

First run in 1952, the tunnel was driven by two centrifugal compressors with a maximum power input of 12000 hp [equivalent to 9 Megawatts]. Speed range was from 300 mph to a Mach number of 2.0 [twice the speed of sound]. This included a “transonic” capability, which made it unique in its early days of operation.
 

Test Section of the 3x3 Tunnel	Saunders Roe SR53 Model Tested, 1955

Relatively easy to use, the tunnel was operated intensively for thirty years until, surplus to requirements, it was closed in 1983.



 

The Group welcomes the support of former employees and anyone else who has interest
 

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