To establish recommended gap settings for aircraft piston engine spark plugs. To standardize gap settings for spark plugs for commercial applications for all types of aircraft piston engines.
SAE ARP716C-1988 history
1994SAE ARP716C-1994 GAP SETTINGS FOR AIRCRAFT PISTON ENGINE SPARK PLUGS
1988SAE ARP716C-1988 Gap Settings for Aircraft Piston Engine Spark Plugs
1981SAE ARP716B-1981 GAP SETTINGS FOR AIRCRAFT PISTON ENGINE SPARK PLUGS
1963SAE ARP716A-1963 GAP SETTINGS FOR AIRCRAFT PISTON ENGINE SPARK PLUGS
1962SAE ARP716-1962 GAP SETTINGS FOR AIRCRAFT PISTON ENGINE SPARK PLUGS