SUPERSONIC PARACHUTE RESEARCH
Abstract
Supersonic vehicles require aerodynamic deceleration systems that will function efficiently and predictably at supersonic speeds over a wide range of altitudes. Deceleration from supersonic speeds at high altitudes involves problems that require new approaches. To meet these greater requirements, extensive applied research is being conducted in the field of aerodynamic deceleration. This research is expected to provide information for designing adequate deceleration devices that will perform consistently so that recovery trajectories can be predicted. Parachute canopies are being investigated since parachutes normally provide a high ratio of aerodynamic drag to weight and bulk. Reliable data exist for Guide-Surface and Flat Circular Ribbon parachute canopies at transonic speeds and dynamic pressures as great as 2500 lb/sq ft. At supersonic speeds, however, inflation has been erratic, drag forces reduced, and materials failed at a fraction of rated strength. Probable causes for this erratic behavior are discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1962
- Accession Number
- AD0282208
Entities
People
- Rudi J. Berndt