What is the maximum ITT for continuous operation of the engine?

• A. 860 C
• B. 755 C
• C. 810 C
• D. 870 C

Answer: (B)

The correct answer is based on the operational limitations set forth in the TH-73A NATOPS manual for the engine. The maximum Interstage Turbine Temperature (ITT) for continuous operation is specified as 755 degrees Celsius. This temperature limit is critical for ensuring the engine operates efficiently and within safety parameters. Exceeding this limit can lead to accelerated wear and potential damage to engine components due to excessive heat.

In aviation training and operations, adhering to these limits is essential for maintaining engine health and ensuring safety during flight. The maximum ITT figure is derived from engine testing and is established to prevent thermal fatigue, maintain performance, and extend engine life. Therefore, understanding these operational limits is crucial for pilots and maintenance personnel to ensure adherence to safety standards and effective engine operation.