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Sunset on the western flank of Cells 1 & 2. The Silenced Exhaust can be seen to the left.
03|03|07 © Simon Cornwell 2007


Cell 2 was originally designed for conducting connected tests on gas turbine systems including reheated military engines. It is currently configured to test the full scale reheat and nozzle systems of military engines using an engine simulator.


The Cell working section designated for engine/rig installation is 3.7m in diameter and 35m in length or which approximately 2m in diameter and 8m in length is currently available for engine installation.


The Cell is connected to a central Air House which provides up to 200 Kg/s flow of air at 750 KpaG pressure, and temperatures (controlled by intercooling and precooling) from 70°C to 220°C.

Elevated temperatures can be achieved by the use of two 1.5 MW electric heaters and/or a 3 MW indirect gas heater which deliver 25Kg/s of non-vitiated air at temperatures of up to 300°C, or by the use of a direct kerosene heater to give 70 Kg/s of air at 950°C.

Lower temperatures can be achieved by the use of a precooler (water cooled) which can supply 90 Kg/s of air at 30°C.

A similar test chamber of identical proportions, Cell 1, has the same capabilities as Cell 2, but is also suitable for free jet testing and is equipped with a means of varying the incidence of a range of supersonic blowing nozzles.

Special Features

The Cell has four independently controlled fuel systems three of which can provide hot fuel to 150°C.

A speically designed camera enclosure sited with the cell provides a unique view of the nozzle and jet pipe interior showing the Reheat combustion conditions.

Summary Of Data

Inlet Air Temperature Range Maximum Massflow Chamber Size (Working Section) Fuel Systems Independent Air Streams Altitude Primary Use
Diameter Length
30-950 °C 200 Kg/s 3.7m 35m 4 (3 hot) 2 10670m
(35,000 ft)
Full Engine or Reheat Rig

© DERA 1995-2001
Taken from a DERA Brochure