Spectrophotometric Method of Diagnosing Liquid‐Fuel Rocket Engines

A method and equipment for optical diagnostics of liquid‐fuel; rocket engines (LR) is described. Experimental data on minimum detactable concentrations of such metals as Fe, Al, Mn, and Ni in the plume have been obtained. The radiation spectra of the plume of the engines of stages II and III of the Proton carrier rocket (CR) and of the full‐scale oxygen‐kerosene LR have been measured.