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Free flight investigation of large all-flexible parawings and performance comparison with small parawings to provide land-landing capability for manned spacecraft
A free-flight test program to determine the deployment characteristics of all-flexible parawings was conducted. Both single-keel and twin-keel parawings having a wing area of 4000 square feet with a five-stage reefing system were tested by use of a bomb-type instrumented test vehicle. Several twin-keel-parawing tests were also made by using an instrumented controllable sled-type test vehicle. The systems were launched from either a C-130 or a C-119 carrier airplane, and a programer parachute was used to bring the test vehicle to a proper dynamic pressure and near-vertical flight path prior to deployment of the parawing system. The free-flight deployment loads data are presented in the form of time histories of individual suspension-line loads and total loads.
A free-flight investigation of two radio-controlled models with parawings, a glider configuration and an airplane (powered) configuration, was made to evaluate the performance, stability, and methods of controlling parawing vehicles. The flight tests showed that the models were stable and could be controlled either by shifting the center of gravity or by using conventional elevator and rudder control surfaces. Static wind-tunnel force-test data were also obtained.
Wind tunnel studies of flight characteristics of model parawing utility vehicle
Performance, static stability, and control characteristics of flexible parawing
Wind tunnel and flight tests to determine aerodynamic characteristics and rigging control of flexible parawing for lifting body spacecraft
Longitudinal and lateral stability and control characteristics of tension-structure parawings
Effects of camber and twist on aerodynamic characteristics of parawings
Pressure distributions on 3 rigid wings simulating parawings with varied canopy curvature and leading edge sweep at mach 2.29 to 4.65
Low speed wind sweep effect on parawings with equal-length leading edges & keel - aerodynamic characteristics
Deployment studies of a dynamically and elastically scaled model of an inflatable parawing, deployed from a capsule mounted with rotational freedom in a wind tunnel
Low-subsonic flight characteristics of model supersonic aircraft configuration with parawing as a landing aid
Low-speed longitudinal aerodynamic investigation of parawings as auxiliary lifting devices for supersonic aircraft configuration
Configurations, structures, materials, advantages and applications for parawings
Effects of canopy shape on parawing aerodynamic characteristics
Effects of aspect ratio and canopy shape on longitudinal and lateral aerodynamic characteristics of parawings having 50 degree sweepback leading edges
Deployment of parawings for recovery of boosters and nonlifting spacecraft