T-stage

T-stage is a British term for a compressor used in a particular concept for a variable cycle combat engine. The T-stage is part of the HP rotor in this concept.^[1]

A US concept for a variable cycle combat engine also uses a similar compressor arrangement as part of the HP rotor. It is called a core driven fan stage (CDFS) by General Electric Aviation in their Variable Cycle Engine (VCE) which ran in 1981.^[2]

Alternative concepts including an LP driven stage are shown in the US patent "Variable Cycle Gas Turbine Engines" filed in 1975.^[3]

References

^ The Impact Of Advanced Engine Technology On Combat Aircraft Performance, Hodder and Sim, Figure 2, AGARD CP 572, 1996, ISBN 92-836-0025-8
^ Flight International,20 March 1982, p.669
^ US patent 4,064,692

[1] The Impact Of Advanced Engine Technology On Combat Aircraft Performance, Hodder and Sim, Figure 2, AGARD CP 572, 1996, ISBN 92-836-0025-8

[2] Flight International,20 March 1982, p.669

[3] US patent 4,064,692

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