Journal of the Society of Motion Picture and Television Engineers (1950-1954)

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Fig. 9. Schlieren photographs of combustion of natural gas in cylinder of Cooper Bessemer GMV engine, exposed at 20,000 frames/sec. Order of exposure is from : to 20, through Row A, then through Row B, and so on. The igniting spark occurrec at unrecorded time at the position shown by S in frame A-3. First visible flame appear as dark area in vicinity of ignition spark at about frame C-4, and is clearly visible a F in frame E-3. Flame traverses chamber and disappears throughout remaininj frames of series. 142 February 1953 Journal of the SMPTE VoL 60