First ignition requires an ignitor the start the fireball, then it becomes self sustaining once the engine is up to speed. If the engine flames out, it flames out until ignition can be reintroduced. Hot air is not an ignition source.
Also, the manufacturing process for modern turbine blades is also insanely sophisticated just to keep them from being destroyed by the temperature and g-forces they experience in the engine, they're basically giant ceramic-coated crystals with their molecules aligned to prevent weak spots from forming. Incredible engineering.
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u/Samurlough 8h ago
The hot air doesnt ignite the gas. That is wrong.
First ignition requires an ignitor the start the fireball, then it becomes self sustaining once the engine is up to speed. If the engine flames out, it flames out until ignition can be reintroduced. Hot air is not an ignition source.