Community Research and Development Information Service - CORDIS


Synthesis report on Contract No BRPR-CT96-0206, 1 September 1996 to 30 April 2001

The project comprised six tasks:
- Task 1: Pitch-up
- Task 2: Quartering flight
- Task 3: Sideward flight tests
- Task 4: Tail shake
- Task 5: Tail rotor noise investigations
- Task 6: Helicopter rotor transfer functions for unsteady inputs on the controls

In spite of severe problems encountered during the wind tunnel experiments,
it was demonstrated that the wind tunnel is the appropriate tool to simulate complex interference phenomena as well as the complete helicopter trimmed as if it flew freely. Previous testing had focused only on isolated components.

The tests gave insight in the physics of the different phenomena addressed,
which is impossible during conventional full scale flight testing. In addition, valuable databases have been installed for the validation of flight mechanical prediction codes. Finally, the appropriateness of measurement techniques such as pressure sensors and particle Image velocimetry has been demonstrated.

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