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Show I Sparks From Lindbergh's j Engine Are Miles Long ; Statisticians may well bow to H. ' Kabezzana, research engineer, who has gone to the trouble of telling us the amount of Hashes delivered by the ' spark plugs in Colonel Lindbergh's j plane during his great flights- to I'aris, to Mexico City and throughout the j United States. Kabezzana says the plugs In the ; Spirit of St. Louis during those 34.!K)5 j miles delivered a total number of , sparks equal to an unbroken Hash of light 01 miles In length. A set of 13 j spark pings Is required in airplane j engines of the Spirit of St. Louis- type, j it was explained. j Kabezzana says automobile speedway speed-way runs are severe tests for engine parts, but they cannot compare with ' the terrific strain endured in trans- I oceanic and other nonstop (lights. Kven the slightest defect in any one insulator, electrode or assembly would spell the difference between success and disaster, he added. |