Description

Controlling the proper fuel-air mixture is essential for the safe and efficient operation of gas turbine engines. If the mixture suddenly becomes too rich (i.e. too much fuel is added to the combustion chamber), excessive heat will be produced that could damage the engine. If fuel flow is rapidly reduced then the airflow could blow the flame out of the combustion chamber. 

The Fuel Metering Unit (FMU) regulates the fuel supply by controlling the fuel pump and monitoring various parameters. The goal is to maintain the desired fuel-air mixture ratio. This ensures that the engines receive the right amount of fuel at all times, optimizing their performance and fuel efficiency.