TEMPERATURE AND SPECTRAL PROFILE OF FULL-SCALE PROPELLANT GRAINS
Abstract
Four types of observations were made of the radiant energy from Polaris second-stage propellant plumes at the Allegany Ballistics Laboratory. Observations were made of radiant emittance vs time, spectral radiance vs time, time-integrated spectral radiance, and visible light modulation of the flame. The flame spectrum was predominantly a continuum on which were superimposed weak lines of aluminum and sodium and weak bands of AlO. No spectral absorption zones were noted between 3600 and 6800A. Spectral distribution, or color, temperatures derived from spectral radiances measured for four range tests indicate an average burning temperature of 2430 K.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 22, 1964
- Accession Number
- AD0352827
Entities
People
- G. L. Knestrick
Organizations
- United States Naval Research Laboratory