Accession Number : AD0661941

Title :   STATO-REACTEUR ET FUSEE: DETERMINATION DE LA POUSSEE EN VOL (FLIGHT MEASUREMENTS OF RAMJET AND ROCKET THRUST),

Corporate Author : ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s) : Bourgarel,C. ; Beslon,J.

Report Date : APR 1958

Pagination or Media Count : 87

Abstract : The report deals with the measurement of ramjet and rocket thrust in flight. Certain simplifying assumptions are made, the principal ones being: (a) that the flow is unidimensional; (b) that the specific heats of the gas are the same before and after combustion; (c) that the flow is adiabatic before combustion; and (d) that in the sections of the air inlet where there are no shock waves the flow is isentropic. The three main methods of measuring thrust that are discussed are the strain-gauge method, the thermodynamic method and the aerodynamic method. The effect of the fuel/air ratio and of altitude and Mach number are also discussed. A number of charts are included giving some results obtained in actual flight. (Author)

Descriptors :   (*THRUST, FLIGHT TESTING), (*RAMJET ENGINES, THRUST), (*ROCKET ENGINES, THRUST), MEASUREMENT, ONE DIMENSIONAL FLOW, ADIABATIC GAS FLOW, MACH NUMBER, ALTITUDE, COMBUSTION

Subject Categories : Jet and Gas Turbine Engines
      Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE