Final answer:
The engine operating limit ITT at normal takeoff refers to the maximum allowable Interstage Turbine Temperature (ITT) during the takeoff phase of an aircraft.
Step-by-step explanation:
The engine operating limit ITT at normal takeoff refers to the maximum allowable Interstage Turbine Temperature (ITT) during the takeoff phase of an aircraft. ITT is a critical parameter for engine performance and it measures the temperature of the air leaving the turbine section of the engine.
It's important to keep the ITT within specified limits to ensure safe and efficient operation of the engine. The specific value of the engine operating limit ITT at normal takeoff can vary depending on the type of aircraft and engine used.
For example, a jet engine might have an operating limit ITT of 900 degrees Celsius at normal takeoff. This means that during takeoff, the ITT should not exceed 900 degrees Celsius to prevent any potential damage to the engine components and maintain optimal performance.