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Attempting to start a Lycoming T53 Turbine Engine after Maintenance. Three attempts and all were aborted. Enjoy, like and subscribe! @helicopterpov #aviation #pilotlife #helicopter #turbine Was it a hot start or a torching start? In gas turbine engines, both hot starts and torching starts refer to abnormal starting conditions, but they are distinct in nature: 1. Hot Start: Definition: A hot start occurs when the temperature within the engine’s combustion section (measured by the Exhaust Gas Temperature, or EGT) exceeds the acceptable limits during startup. Cause: It typically happens because there is too much fuel entering the combustion chamber relative to the amount of airflow available, resulting in higher-than-normal temperatures. Consequences: A hot start can damage engine components like turbine blades, combustion liners, or other internal parts due to excessive heat. Indicators: High EGT during startup, possible warnings from the engine control system, and potential overheating in the engine. 2. Torching Start: Definition: A torching start occurs when excess fuel ignites outside of the combustion chamber, often leading to visible flames or fire escaping from the engine’s exhaust or intakes. Cause: This can happen if unburned fuel accumulates in the engine, and then ignites later, often due to delayed ignition or improper fuel flow management during the start sequence. Consequences: Torching starts can lead to damage from fire and may pose a safety hazard to ground personnel. However, the internal components may not experience the same overheating as in a hot start.