Design of Lodge Aero A-40, A-30, and A-20 spark plugs is discussed; early design of mica-insulated spark plug; used for high-compression engines. Model A-30 has patented heat-conducting copper sleeve between mica and steelalloy center pin; making plug for Rolls-Royce F type engine that will withstand great heat; A-20 used for engines of medium compression. (See also Aeroplane, vol. 37, no. 9, Aug. 28, 1929 (Aeronautical Eng. Supp.), p. 565, 4 figs.)


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    Title :

    The development of sparking plugs for aircraft engines


    Additional title:

    Flight


    Published in:

    Flight ; 21 , n 39


    Publication date :

    1929


    Size :

    3 pages


    Remarks:

    3 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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