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High Altitude Flight Test Of A 40 Foot Diameter 122 Meter Ringsail Parachute At A Deployment Mach Number Of 295
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Book Synopsis High-altitude Flight Test of a 40-foot-diameter (12.2-meter) Ringsail Parachute at a Deployment Mach Number of 2.95 by : Clinton V. Eckstrom
Download or read book High-altitude Flight Test of a 40-foot-diameter (12.2-meter) Ringsail Parachute at a Deployment Mach Number of 2.95 written by Clinton V. Eckstrom and published by . This book was released on 1970 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 40-foot-nominal-diameter (12.2-meter) modified ringsail parachute was flight tested as part of the NASA Supersonic High Altitude Parachute Experiment (SHAPE) program. The 41-pound (18.6-kg) test parachute system was deployed from a 239.5-pound (108.6-kg) instrumented payload by means of a deployment mortar when the payload was at a Mach number of 2.95 and a free-stream dynamic pressure of 9.2 lb/sq ft (440 N/m2). The parachute deployed properly with the canopy inflating to a near full open condition followed immediately by a partial collapse of the canopy and subsequent oscillations of the frontal area until the system had decelerated to a Mach number of about 1.5. The parachute then attained an inflated shape that provided full drag area. During the supersonic part of the test, the average axial-force coefficient C A, 0 varied from a minimum of about 0.24 at a Mach number of 2.7 to a maximum of 0.54 at a Mach number of 1.1. During descent under subsonic conditions, the average effective drag coefficient was 0.62 and parachute-payload oscillation angles averaged about ±10° with excursions to ±20°.--P. [i].
Book Synopsis High-altitude Flight Test of a Reefed 12.2-meter-diameter Disk-gap-band Parachute with Deployment at a Mach Number of 2.58 by : John S. Preisser
Download or read book High-altitude Flight Test of a Reefed 12.2-meter-diameter Disk-gap-band Parachute with Deployment at a Mach Number of 2.58 written by John S. Preisser and published by . This book was released on 1971 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: A reefed B.2-meter nominal-diameter (40-ft) disk-gap-band parachute was flight tested as part of the NASA Supersonic High Altitude Parachute Experiment (SHAPE) program. A three-stage rocket was used to drive an instrumented test payload to an altitude of 43.6 km (143 000 ft) and a Mach number of 2.58 where the parachute was deployed by means of a mortar. After a time delay of about 8.5 seconds, the parachute was disreefed at a Mach number of 0.99. The report contains an analysis of parachute inflation, drag, and stability for both the reefed and unreefed parts of the test. In addition, detailed descriptions of the test parachute, the reefing system, and the parachute packing procedurea are included.
Book Synopsis Flight Test of a 31.2-foot-diameter Modified Ringsail Parachute Deployed at a Mach Number of 1.39 and a Dynamic Pressure of 11.0 Pounds Per Square Foot by : John S. Preisser
Download or read book Flight Test of a 31.2-foot-diameter Modified Ringsail Parachute Deployed at a Mach Number of 1.39 and a Dynamic Pressure of 11.0 Pounds Per Square Foot written by John S. Preisser and published by . This book was released on 1967 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance of a 26-meter-diameter Ringsail Parachute in a Simulated Martian Environment by : Charles H. Whitlock
Download or read book Performance of a 26-meter-diameter Ringsail Parachute in a Simulated Martian Environment written by Charles H. Whitlock and published by . This book was released on 1967 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflation, drag, and stability characteristics of an 85.3-foot (26 meter) nominal diameter ringsail parachute deployed at a Mach number of 1.15 and at an altitude of 132,600 feet (40.42 kilometers) were obtained from the first flight test of the Planetary Entry Parachute Program. After deployment, the parachute inflated to the reefed condition. However, the canopy was unstable and produced low drag in the reefed condition. [remainder of summary illegible].
Book Synopsis Flight Test of a 31.2-foot-diameter Modified Ringsail Parachute Deployed at a Mach Number of 1.39 and a Dynamic Pressure of 11.0 Pounds Per Square Foot by :
Download or read book Flight Test of a 31.2-foot-diameter Modified Ringsail Parachute Deployed at a Mach Number of 1.39 and a Dynamic Pressure of 11.0 Pounds Per Square Foot written by and published by . This book was released on 1967 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Test of a 30-foot Nominal Diameter Disk-gap-band Parachute Deployed at a Mach Number of 1.56 and a Dynamic Pressure of 11.4 Pounds Per Square Foot by : Clinton V. Eckstrom
Download or read book Flight Test of a 30-foot Nominal Diameter Disk-gap-band Parachute Deployed at a Mach Number of 1.56 and a Dynamic Pressure of 11.4 Pounds Per Square Foot written by Clinton V. Eckstrom and published by . This book was released on 1967 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Tests of Cross, Modified Ringsail, and Disk-gap-band Parachutes from a Deployment Altitude of 3.05 Km /10,000 Ft/ by :
Download or read book Flight Tests of Cross, Modified Ringsail, and Disk-gap-band Parachutes from a Deployment Altitude of 3.05 Km /10,000 Ft/ written by and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-altitude Flight Test of a Reefed 12.2-meter-diameter Disk-gap-band Parachute with Deployment at a Mach Number of 2.58 by : John S. Preisser
Download or read book High-altitude Flight Test of a Reefed 12.2-meter-diameter Disk-gap-band Parachute with Deployment at a Mach Number of 2.58 written by John S. Preisser and published by . This book was released on 1971 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis HIGH-ALTITUDE PERFORMANCE OF A 64-FOOT-DIAMETER RING SAIL PARACHUTE by : Max C. Kurbjun
Download or read book HIGH-ALTITUDE PERFORMANCE OF A 64-FOOT-DIAMETER RING SAIL PARACHUTE written by Max C. Kurbjun and published by . This book was released on 1959 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Test of a 40 Foot Nominal Diameter Disk-gap-band Parachute Deployed at a Mach Number of 3.31 and a Dynamic Pressure of 10.6 Pounds Per Square Foot by : Clinton V. Eckstrom
Download or read book Flight Test of a 40 Foot Nominal Diameter Disk-gap-band Parachute Deployed at a Mach Number of 3.31 and a Dynamic Pressure of 10.6 Pounds Per Square Foot written by Clinton V. Eckstrom and published by . This book was released on 1970 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-altitude Test of a Reefed 12.2-meter-diameter Disk-gap-band Parachute with Deployment at a Mach Number of 2.58 by : John S. Preisser
Download or read book High-altitude Test of a Reefed 12.2-meter-diameter Disk-gap-band Parachute with Deployment at a Mach Number of 2.58 written by John S. Preisser and published by . This book was released on 1971 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Test of a 40-foot-nominal-diameter Disk-gap-band Parachute Deployed at a Mach Number of 2.72 and a Dynamic Pressure of 9.7 Pounds Per Square Foot by : Clinton V. Eckstrom
Download or read book Flight Test of a 40-foot-nominal-diameter Disk-gap-band Parachute Deployed at a Mach Number of 2.72 and a Dynamic Pressure of 9.7 Pounds Per Square Foot written by Clinton V. Eckstrom and published by . This book was released on 1968 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inflation and Performance of Three Parachute Configurations from Supersonic Flight Tests in a Low-density Environment by : Charles H. Whitlock
Download or read book Inflation and Performance of Three Parachute Configurations from Supersonic Flight Tests in a Low-density Environment written by Charles H. Whitlock and published by . This book was released on 1969 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten flight tests of modified-ringsail, disk-gap-band, and cross parachute configurations with deployment at Mach numbers and dynamic pressures corresponding to conditions expected during entry into a Martian atmosphere have been completed. Comparison of flight results indicates that theoretical snatch force values were never exceeded when the deployment techniques of these tests were used. Opening loads showed no definite trend with Mach number. Values for filling times compared favorably with generally accepted empirical curves based on 15-percent geometric porosity. Canopy stability was good when Mach numbers were below 1.4 for the modified-ringsail and disk-gap-band configurations.
Book Synopsis An Investigation of the Initial Century Series Ringsail Parachute by : Leland C. Norman
Download or read book An Investigation of the Initial Century Series Ringsail Parachute written by Leland C. Norman and published by . This book was released on 1970 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of a Parachute Load Distribution Measuring System During Low Altitude Drop Tests by : I. S. Hoffman
Download or read book Evaluation of a Parachute Load Distribution Measuring System During Low Altitude Drop Tests written by I. S. Hoffman and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: In conjunction with the low-altitude preflight drop test phase of the NASA Supersonic High-Altitude Parachute Experiments (SHAPE) program, canopy-load-distributed measurements were made on each of three types of parachute during deployment (by means of a mortar) from an aircraft-dropped payload. Loads were measured with miniature load cells at various locations on the canopies and in the suspension lines of 30- and 40-foot-diameter (9.14 and 12.19 meters) parachutes, with a total of seven measurements of this type being made on each of seven instrumented parachute drops. Out of a total of 49 such individuual measurement attempts, there were six individual load-cell problems, which included one of lead-wire breakage during parachute deployment. Total parachute load measurements were also made during each test by means of a tensionmeter in the main riser line. In addition, for the total parachute instrumentation program, data from approximately 40 percent of the channels were not obtained due apparently to onboard telemetry malfunction.
Book Synopsis High Altitude Flight Test of a Disk-gap-band Parachute Deployed Behind a Bluff Body at a Mach Number of 2.69 by : Clinton V. Eckstrom
Download or read book High Altitude Flight Test of a Disk-gap-band Parachute Deployed Behind a Bluff Body at a Mach Number of 2.69 written by Clinton V. Eckstrom and published by . This book was released on 1972 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of the Characteristics of 6-foot Drogue-stabilization Ribbon Parachutes at High Altitudes and Low Supersonic Speeds by : Clinton T. Johnson
Download or read book Investigation of the Characteristics of 6-foot Drogue-stabilization Ribbon Parachutes at High Altitudes and Low Supersonic Speeds written by Clinton T. Johnson and published by . This book was released on 1960 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance data are presented for two types of ribbon parachutes. The parachutes were forcibly deployed from an air-launched test vehicle at altitudes from 55,000 feet to 70,000 feet and at Mach numbers between 0.92 and 1.52. Opening shock, steady-state drag performance, and canopy-porosity effects are evaluated with respect to Mach number and dynamic pressure. The conical canopy design appears to function far better than the flat canopy at supersonic deployment speeds. The relatively high-porosity conical design improves the parachute stability, with the added benefit of a low opening shock. The drag efficiency of the conical canopy is equivalent to that of the flat canopy having 50-percent-lower porosity. Riser elasticity and length also appear to be important parameters affecting the parachute stability. Reducing the weight of the test vehicle by a factor of one-third had a negligible effect on the stability and drag characteristics of the parachute.
