USAF Bioenvironmental Noise Data Handbook. Volume 13. MA-1 Manifold Set, Hydraulic Jacking.
Abstract
The MA-1 Manifold Set is designed to provide a power source for driving hydraulic aircraft jacks. This report provides measured and extrapolated data defining the bioacoustic environments produced by this unit operating outdoors on a concrete apron at normal rated/loaded conditions. Near-field data are reported for 37 locations in a wide variety of physical and psychoacoustic measures: overall and band sound pressure levels, C-weighted and A-weighted sound levels, preferred speech interference level, perceived noise level, and limiting times for total daily exposure of personnel with and without standard Air Force ear protectors. Far-field data measured at 36 locations are normalized to standard meteorological conditions and extrapolated from 5 to 800 meters to derive sets of equal-value contours for these same seven acoustic measures as functions of angle and distance from the source. Refer to Volume 1 of this handbook, 'USAF Bioenvironmental Noise Data Handbook, Vol 1: Organization, Content and Application', AMRL-TR-75-50(1) 1975, for discussion of the objective and design of the handbook, the types of data presented, measurement prcedures, instrumentation, data proessing, definitions of quantities, symbols, equations, applications, limitations, etc.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1975
- Accession Number
- ADA029587
Entities
People
- Carl G. Toler
- Henry Mohlman
- John N. Cole
- Nick A. Farinacci
- Robert T. England
Organizations
- Air Force Research Laboratory