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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
Date Acquired
August 24, 2013
Publication Date
June 28, 1960
Subject Category
Aerodynamics
Report/Patent 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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