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High-Speed Schlieren Movies of the Flow About Reefed Parachute Models Towed at Supersonic Speeds Behind a Conical Body (4.875 Inches in Diameter). Drag Values Based on the Unreefed Diameter of 1.73 F. Porosity of Unreefed Parachute is 28 Percent.Flexible parachute models reefed to one-eighth, one-fourth, one-third, and four tenths of its diameter were towed at speeds of Mach 1.80, 2.00, 2.20 and 2.87. Towline lengths tested were 23.40, 24.38, 26.81, and 29.25 inches. High-speed Schlieren movies of the flow are shown.
Document ID
20070030948
Acquisition Source
Langley Research Center
Document Type
Video
External Source(s)
http://lisar.larc.nasa.gov/MOVIES/MEDIUM/LV-2007-00013.mov
http://lisar.larc.nasa.gov/MOVIES/LARGE/LV-2007-00013.mov
Date Acquired
August 24, 2013
Publication Date
June 28, 1960
Subject Category
Aerodynamics
Report/Patent Number
L-556
Report Number: L-556
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
SCHLIEREN PHOTOGRAPHY
CONICAL BODIES
TESTS
PARACHUTES
[Division] UPWTD
FLOW VISUALIZATION
SUPERSONIC SPEEDS
DRAG MEASUREMENT
DRAG CHUTES

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