Description

A "hot start" in any variant of a jet engine refers to the circumstance where the manufacturer defined limiting temperature for start has been exceeded. This temperature limit will be expressed as one of turbine inlet temperature (TIT), exhaust gas temperature (EGT) or interstage turbine temperature (ITT) as appropriate to the engine. The start temperature limit varies by manufacturer and engine type and can be less than, equal to or greater than the normal maximum operating temperature for the engine in question.