Accession Number:

AD0261374

Title:

THE NEUTRALIZATION OF ION-ROCKET BEAMS

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C

Personal Author(s):

Report Date:

1961-08-01

Pagination or Media Count:

1.0

Abstract:

AD-2 1 3749N2 AD-261 375Div. 1U 16 Aug 61 OTS price 1.00 National Aeronautics and Space Administr tion, Washington, D. C. SOUND PRESSURES AND CORRELATION OF NOISE ON THE FUSELAGE OF A JET AIRCRAFT IN FLIGHT, by Russell D. Shattuck. Aug 61, 32p. incl. illus. tables NASA technical note no. D-1086 Unclassified reportAlso available from NASA, Wash. 25, D. C., as NASA Technical note D-1086. DESCRIPTORS Jet plane oi , Fus lages, Pressure, Flight testing, Boundary layer, Jet engine noise, Flight, Velocity, Jet bombers, Acoustics, Microphones, Sound, Jet planes, Measurement. Open-ended Terms B-57. T s r co uc l itu es of 10,000, 20,000, and 30,000 feet at speeds of Mach 0.4, 0.6, and 0.8. It was found that the sound pressure levels on the aft fuselage of a jet aircraft in flight can be estimated using an equation involving the tru airsp d an th fr e air d n ity. The cross-correlation coefficient over a spacing of 2.5 feet was generalized with Strouhal number. The spectrum of the noise in flight is comparatively flat up to 10,000 cycles per second. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE