What is the maximum ITT range for 5 seconds, in degrees Celsius?

• A. 800 to 850
• B. 871 to 1,000
• C. 900 to 950
• D. 950 to 1,100

Answer: (B)

The maximum Interstage Turbine Temperature (ITT) range for a duration of 5 seconds is recognized in aviation operations as critical during engine start and certain phases of operation. The correct range of 871 to 1,000 degrees Celsius reflects the operational limits that are set by manufacturers to ensure engine integrity and performance during these transient conditions.

This range is crucial for pilots and technicians to understand because exceeding these temperatures can lead to potential damage to engine components, affecting reliability and safety. The specified limit of 871 to 1,000 degrees Celsius specifically allows for a short burst of high-temperature operation, accommodating power demands while still being within safe operating parameters.

Understanding the ITT limits is vital not just for compliance with technical manuals but also for overall flight safety and operational efficiency.