What is the minimum N1 at low idle?

The minimum N1 at low idle for the T-54A systems is 61. This value is significant because it represents the minimum required speed of the engine's high-pressure compressor at idle conditions, ensuring that the engine operates efficiently and safely. Operating below this threshold could lead to unstable engine performance, risk of compressor stall, or insufficient thrust for normal operations.

Understanding the importance of maintaining this minimum N1 is crucial for pilots and maintenance personnel in ensuring the reliability of the aircraft's engine, particularly during critical phases such as startup and shutdown. This specification helps to establish safe operational parameters and is part of broader engine performance metrics that ensure longevity and optimal performance of the T-54A systems.