A test was conducted in the 16-ft supersonic tunnel to obtain drag, inflation, and stability characteristics of a metal ballute, a cloth ballute, and three hemisflo parachutes (5-, 10-, and 15-percent porosity). The cloth and metal ballutes were investigated at Mach numbers of 2.5 and 2.9, respectively, at a dynamic pressure of 120 psfa. The hemisflo parachutes were investigated at a Mach number of 2.6 at a dynamic pressure of 120 psfa. The drag coefficient of the hemisflo parachutes decreased as canopy porosity increased. There was no discernible effect of canopy porosity on stability of the parachutes. %Author)
Aerodynamic Characteristics of Ballutes and Hemisflo Parachutes at Mach Numbers of 2.5, 2.6, and 2.9
1965
31 pages
Report
Keine Angabe
Englisch
Aircraft , Balloons , Drag parachutes , Supersonic characteristics , Wind tunnel models , Deceleration , Supersonic flow , Inflatable structures , Hemispherical shells , Release mechanisms , Nylon , Stainless steel , Conical bodies , Mounting brackets , Porosity , Failure (Mechanics) , Force (Mechanics) , Aerodynamic loading , Deployment , Drag , Stability , Oscillation , Performance (Engineering) , Ballutes , Steel 1050
Aerodynamic characteristics of parachutes at mach numbers from 1.6 to 3
Engineering Index Backfile | 1961
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