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Measurements of sonic booms generated by an airplane flying at Mach 3.5 and 4.8Sonic booms generated by the X-15 airplane flying at Mach numbers of 3.5 and 4.8 were measured. The experimental results agreed within 12 percent with results obtained from theoretical methods. No unusual phenomena related to overpressure were encountered. Scaled data from the X-15 airplane for Mach 4.8 agreed with data for an SR-71 airplane operating at lower Mach numbers and similar altitudes. The simple technique used to scale the data on the basis of airplane lift was satisfactory for comparing X-15 and SR-71 sonic boom signatures.
Document ID
19740026373
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Green, K. S. (NASA Flight Research Center Edwards, CA, United States)
Putnam, T. W. (NASA Flight Research Center Edwards, CA, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1974
Subject Category
Aircraft
Report/Patent Number
NASA-TM-X-3126
H-838
Report Number: NASA-TM-X-3126
Report Number: H-838
Accession Number
74N34486
Funding Number(s)
PROJECT: RTOP 501-24-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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