Rolls Royce Trent 500 Engine: How Does It Work?

So how do aircraft engines work?  They start by pulling air into the front of the aircraft via a large blade fan.  Next, a compressor raises the air pressure and internal blades start spinning and squeezing the air.  Once compressed, the air is mixed with fuel and a spark lights the mixture, shooting jets of burning gas out the back and thrusting the aircraft forward.  The hot air then passes through the turbine, causing the compressor to spin.  Although this is a very simplified explanation, this is the basis of how all aircraft engines work.

Within the engine, there’s something called an integrated drive generator (IDG).  This component connects to the aircraft gearbox and converts the shaft power into constant frequency electrical power.  Inside the Trent 500, there are four IDGs that work together to meet the A340’s level of power requirements.  These are important because they act as a governor, keeping the aircraft at a stabilized speed.

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