Accession Number : AD0767876

Title :   An Apparatus for Measuring Small Variations in Thrust.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Lorrigan,Monte Tom

Report Date : JUN 1971

Pagination or Media Count : 52

Abstract : The report describes a development of instrumentation and techniques for evaluating performance of small convergent-divergent nozzles with a precision of at least 0.99. The nozzles tested were mounted on a pendulum thrust chamber. During testing the thrust chamber would deflect an aluminum strip on which was mounted a strain gage used to evaluate thrust for various chamber pressures. A throat area of approximately 1/2 sq in was used. Thrust values of 29-30.5 foot pounds were obtained at a chamber pressure of 110 in Hg gage. Two of the nozzles were submerged 0%, 20%, and 40% of overall nozzle length. (Author)

Descriptors :   (*CONVERGENT DIVERGENT NOZZLES, THRUST), (*ROCKET NOZZLES, THRUST), COMBUSTION CHAMBERS, COMBUSTION CHAMBER GASES, NOZZLE THROATS, NOZZLE AREA RATIO, INSTRUMENTATION, THESES

Subject Categories : Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE