A Photographic Study of Combustion and Knock in a Spark-Ignition Engine (1938)
NASA Technical Reports Server (NTRS) · leaf 11
Figure 8.—Enlargements of high-speed motion pictures show ing effect of different octane ratings on combustion knock. Air-fuel ratio, 14; A, first evidence of knock; engine speed, 500 r. p. in.; one spark plug. Octane ratings, 100, 65, and 50.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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