Ng: Gas generator rotation speed indication. Ng is an indication of the power output of the engine. The pilots and technicians reference the Ng speed to determine the engine power setting.

What are the four types of turbine engines?

There are four different types of turbine engines – turbojet, turboprop, turbofan and turboshaft.
Turbojet. A turbojet engine was first developed in Germany and England prior to World War II and is the simplest of all jet engines. Turboprop. Turbofan. Turboshaft.

Is ng the same as N1?

Instead, propeller RPM and torque are used to set power while N1 is used to monitor system health and control engine starts (note N1 and NG are generally interchangeable values for turboprop engines).

Interstage Turbine Temperature (ITT) is the temperature of the exhaust gases between the high pressure and the low pressure turbines. The gas temperature is measured by a number of thermocouples mounted in the exhaust stream and is presented on a flight deck gauge in either degrees Fahrenheit or degrees Celcius.