A real-time piloted simulation at the NASA Dryden Flight Research Facility was used to study the feasibility of launching a research aircraft from a high-altitude balloon. In the study, the simulated aircraft was launched in a nosedown attitude at zero airspeed from 110,000 ft. After launch, the pilot flew the aircraft through a near-maximum-lift pullout and then through a zoom climb to a trimmed, l-g flight condition at the test altitude. The study included parametric variations to measure the effects of launch altitude, gross weight, Mach number limit, and parachute size on the test altitude attained. The aerodynamic model of the simulated aircraft was based on flight test results, low Reynolds number windtunnel tests, and computational models; the model included significant Mach number and Reynolds number effects at high altitude. A small parachute was included in the simulation to limit Mach number during the pullout to avoid adverse transonic effects and their resultant energy losses. A small rocket motor was included in the simulation and was investigated for boosting the aircraft to a higher test altitude. In the study, a test altitude of approximately 95,000 ft was attained without rocket boost, and a test altitude in excess of 100,000 ft was attained using small rocket boost.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    High-altitude balloon-launched aircraft - A piloted simulation study


    Contributors:

    Conference:

    AIAA, AHS, and ASEE, Aerospace Design Conference ; 1993 ; Irvine, CA, United States


    Publication date :

    1993-02-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Piloted simulation study of a balloon-assisted deployment of an aircraft at high altitude

    Murray, James / Moes, Timothy / Norlin, Ken et al. | NTRS | 1992



    DLR HABLEG - High Altitude Balloon Launched Experimental Glider

    Wlach, S. / Schwarzbach, M. / Laiacker, M. | TIBKAT | 2015


    Dynamics simulation of folding wing UAVs launched from a high-altitude balloon platform

    Zhang, Hangyue / Yang, Yanchu / Cai, Rong | SAGE Publications | 2023


    Method for estimating altitude performance of balloon launched rockets

    Jones, Jr., M.J. | Engineering Index Backfile | 1955