MMT4-FB is part of the MicroTran software suite, which is an aircraft flight simulator for commercial pilots. MMT4-FB stands for Multi-Mode Turbofan Flight-Base. It is a flight base model developed specifically for multi-mode turbine engines, in order to train pilots on the operation and maintenance of these engines. MMT4-FB provides realistic visuals, flight parameters, and engine performance data for simulating a variety of scenarios including startup, climb, cruise, descent and shutdown of the engine. The MMT4-FB system also provides insight into the physics behind the operation of a multi-mode turbofan engine and allows users to practice adjusting parameters and settings in order to achieve optimal performance.