Aircraft Fuel Metering Systems

This manual describes basic aircraft fuel and fuel metering systems. For enthusiastic pilots and mechanics, the text begins with a description of all the key characteristics of an aircraft fuel system. It then explains the operation of standard aircraft carburetors, pressure carburetors (similar to GM "Throttle Body Injection" systems), and fuel injection systems. Carburetors may seem antique and quaint to modern pilots, but they continue to be used in aircraft because of low-cost (compared to fuel injection) and simplicity. Homebuilders, especially, will need to understand the operation and maintenance of standard aircraft carburetors.