Wind-tunnel tests have been made of 1/4-scale and 1/2-scale models of the Galileo Probe conical ribbon-parachute at flight conditions. For the Galileo mission, the parachute is deployed behind a blunt shape at transonic speed. The investigation was initiated to verify the solutions to the delayed main-parachute opening with squidding that was observed in the 1982 Galileo Probe system balloon drop test. In addition to varying model scale, the forebody shape, angle of attack, dynamic pressure, Mach number, and canopy trailing distance behind the forebody were varied to determine their effect on parachute performance. Both steady-state and deployment tests were conducted. Parachute drag was measured and was seen to degrade severely at canopy trailing distances of 5.5 and 7 forebody diameters. Performance was shown to be good at the trailing distances of 9 and 11 diameters. A second balloon drop test demonstrated the desired parachute performance at the system level.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Transonic wind-tunnel investigation of the Galileo Probe parachute configuration


    Contributors:

    Publication date :

    1984-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :



    Transonic wind-tunnel tests of a lifting parachute model

    Foughner, J. T., Jr. / Reed, J. F. / Wynne, E. C. | NTRS | 1976


    Transonic Wind-Tunnel Tests of a Lifting Parachute Model

    J. T. Foughner / J. F. Reed / E. C. Wynne | NTIS | 1976


    Wind tunnel tests to evaluate a lifting transonic parachute

    RYCHNOVSKY, R. / EVERETT, R. | AIAA | 1975


    Parachute design for Galileo Jupiter entry probe

    RODIER, R. / THUSS, R. / TERHUNE, J. | AIAA | 1981