If you’ve ever watched or been on an aircraft sitting on the runway, you might notice the engines begin to hum and spin just before the plane moves. This process is called spooling up, and it’s a ...

close-up of jet engine nacelle with a strake on the side - Dinujaya/Shutterstock There are many components that go into a jet engine, from combustors to compressors to those gigantic fans that are a ...