Glossary

What are transonic airfoils, and what is the active clearance control? Check out our technical dictionary and find out more about engine technology terms – from active clearance control to velocity triangle.

Nickel-cadmium Nickel-plating Nitriding Nitrocarburizing Noise Normalizing Normal turbine stage

Noise

The so-called jet noise is generated by the exhaust gas jet which is accelerated in a tapered jet pipe nozzle. Engines without afterburner are fitted with a fixed cross-section jet pipe, engines with afterburner a variable jet pipe.