What is the maximum start duration for T-6 engine to avoid damage?

The maximum start duration for the T-6 engine is set at 20 seconds to prevent damage. This time limit is crucial because exceeding it can lead to overheating in the engine's starter motor and related components. During the start sequence, the engine requires a specific amount of time to ignite and stabilize, and if this duration is exceeded, the starter can overheat, potentially resulting in failure and additional maintenance issues. Following the established operational limits ensures the longevity and reliable performance of the engine, aligning with safety and operational guidelines.