TEMPERATURE AND SPECTRAL PROFILE OF FULL-SCALE PROPELLANT GRAINS
NAVAL RESEARCH LAB WASHINGTON DC
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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.
- Nuclear Physics and Elementary Particle Physics
- Solid Propellant Rocket Engines
- Solid Rocket Propellants