Effect of ground proximity gave normally expected losses in lift at zero and very low forward speeds; at higher forward speeds ground effects were favorable; at low forward speeds, out of ground effect, model encountered large losses in lift and large nose-up pitching moments with model at low angles of attack and jet deflected 90° or 75° (angles required for VTOL performance and very low forward speeds).


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Investigation of interference of deflected jet with free stream and ground on aerodynamic characteristics of semispan delta-wing VTOL model


    Additional title:

    NASA -- Tech Notes


    Contributors:


    Publication date :

    1961


    Size :

    93 pages


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English


    Keywords :