Aviation engines, design - construction - operation and repair; a complete, practical treatise outlining clearly the elements of internal combustion engineering with special reference to the design, construction, operation and repair of airplane power plants; also the auxiliary engine systems, such as lubrication, carburetion, ignition and cooling. It includes complete instructions for engine repairing and systematic location of troubles, tool equipment and use of tools, also outlines the latest mechanical processes (1917)
Pagé, Victor Wilfred, 1885-1947 · New York, The Norman W. Henley Publishing Company · leaf 196
ls sometimes used are glass, Spark-Plug Design and Use 195 steatite (which is a form of soapstone) and lava. Micaand porcelain are the two common materials used becausethey give the best results. Glass is liable to crack, whilelava or the soapstone insulating bushings absorb oil.The. spark gap of… … #8-32 \./4mm..75 p.) I inHex-USm-m.Across Flats 16.9 Threads per inch : 1.5millimeters pitchRoot diameter 633 inch.: I6.09.millimetersPitch diameter 678* inch: 17. ?2+02millimetersOutside diameter?77inch •-18.2 millimeters Fig. 73.—Standard Airplane Engine Plug Suggested by S. A. E. Standards…
Airplanes
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