Modern Airplne Engine Anatomy

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Piston engine totaly are used mainly to power the vast numbers of light aircraft and microlights,as well as crop-sprayers and crop-dusters, small helicopters,and fire-bombers(which dump water on larg fires). Virtually all heavier aircraft are now powered by jet engines. Modern piston aero-engine work on the same basic principles as the engine used by the wright brothers in the first powered flight in 1903. However , today's engines are more sophisticated than earlier engines. For example modern aero-engines may be use a two-stroke or a four-stroke combustion cycle; they may have from one to nine air-or water-cooled cylinders,which may be arranged horizontally,in-line, in V formation,or propeller either directly or through a reduction gearbox.One of the more unconventional types of modern aero-engine is the rotary engine shown here,which has a trilobate (three-sided) rotor spinning in a chamber shaped like a fat figure-of-eight.

 Now See The Picture
                                                           Engine 1

Engine 2