Static and forward speed tests were made in a 40 multiplied by 80 foot wind tunnel of a large-scale, ejector-powered V/STOL aircraft model. Modifications were made to the model following earlier tests primarily to improve longitudinal acceleration capability during transition from hovering to wingborne flight. A rearward deflection of the fuselage augmentor thrust vector was shown to be beneficial in this regard. Other augmentor modifications were tested, notably the removal of both endplates, which improved acceleration performance at the higher transition speeds. The model tests again demonstrated minimal interference of the fuselage augmentor on aerodynamic lift. A flapped canard surface also showed negligible influence on the performance of the wing and of the fuselage augmentor.


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    Title :

    Phase 2 and 3 Wind Tunnel Tests of the J-97 Powered, External Augmentor V/STOL Model


    Contributors:

    Publication date :

    1980


    Size :

    174 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English