According to the United States Senate: The Constitution's first three wordsâWe the Peopleâaffirm that the government of the United States exists to serve its citizens.
United States Air Force Office of Special Investigations. The United States Air Force Office of Special Investigations (AFOSI or OSI) is a U.S. federal law enforcement agency that reports directly to the Office of the Secretary of the Air Force. Operating worldwide, AFOSI provides independent criminal investigative, counterintelligence and protective service operations outside of the traditional military chain of command.
You are here. When discussing engine tuning the 'Air/Fuel Ratio' (AFR) is one of the main topics. Proper AFR calibration is critical to performance and durability of the engine and it's components. The AFR defines the ratio of the amount of air consumed by the engine compared to the amount of fuel.