MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 118
e firing order isalteruate — e.g. 1-3-5-2-4. The usual limitation is ninecylinders in a row. Larger engines of this type havetwo, three, or more rows working on a two or threethrow crankshaft. Radial engines are dry sump, or pressure lubri-cated. They are air cooled by means of fins and… … Horizontally Opposed Extremely popular in the light airplane field, thehorizontally opposed engine, as the name impUes, hastwo banks of cyUnders working on the same crankshaftwhich lie directly opposite to each other in the horizontal plane. The outstanding advantage of this motor type is itsflat,…
Airplanes
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