Abstract

The European Transonic Windtunnel (ETW) provides the capability for achieving full scale flight Reynolds numbers by testing at high pressures (up to 4.5 bar) and at cryogenic temperatures down to 110 K. Within the scope of the “HiReTT” European research programme a modern transport aircraft configuration has been tested over a large range of Reynolds numbers. The programme has included a sting supported test series together with a complementary series of tests using twin sting supports. ETW’s Twin Sting Rig (TSR) capability has been improved by developing an enhanced version incorporating twin six component balances. This paper describes the development and calibration of the support system, the design and manufacture of model related components, and provides an overview of the complete programme of wind tunnel tests.

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