Accession Number:

AD0625775

Title:

PULSE TESTING OF AN APACHE AND CAJUN SOLID ROCKET MOTOR FOR RESONANCE.

Descriptive Note:

Rept. for Feb-Oct 65,

Corporate Author:

THIOKOL CHEMICAL CORP ELKTON MD

Personal Author(s):

• Edwards,John W.
• Mallick,John

Report Date:

1965-11-30

Pagination or Media Count:

14.0

Abstract:

The possibility of inducing combustion instability in the Apache and Cajun solid propellant rocket motors was investigated by introducing an acoustic disturbance pulse tubes loaded with black powder were fired. One Apache and one Cajun rocket motor were tested. The reduced data show that the acoustic disturbances introduced into the motors by the firing of the pulse tubes rapidly dampened out. Since the scope of the testing was limited, it is not possible to conclude absolutely that the Apache or Cajun will never resonate however, the probability of resonance is very slight. Author

Descriptors:

• *COMBUSTION
• CAPTIVE TESTS
• SOLID PROPELLANT ROCKET ENGINES
• STABILITY
• BURNING RATE
• RESONANT FREQUENCY

Subject Categories:

• Combustion and Ignition
• Solid Propellant Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE