Maximum Start EGT is what?

Prepare for the P-8A Poseidon Operating Limitations Exam with flashcards and multiple-choice questions. Each question comes with hints and detailed explanations. Enhance your aviation knowledge and ace your exam!

Multiple Choice

Maximum Start EGT is what?

Explanation:
During engine start, the exhaust gas temperature is watched to protect the turbine from thermal damage while the engine is spooling up. The limit set for a safe start is 725 C, which is the maximum allowable EGT you may see during the start sequence. If the EGT approaches or reaches that value, the start should be terminated or the fuel cut off per procedure to prevent overstressing the turbine blades. The other numbers aren’t used as the start limit because they either exceed the published maximum (735 C and 750 C) or are not the defined cap for a safe start (700 C is below the actual limit). So, the correct maximum start EGT is 725 C.

During engine start, the exhaust gas temperature is watched to protect the turbine from thermal damage while the engine is spooling up. The limit set for a safe start is 725 C, which is the maximum allowable EGT you may see during the start sequence. If the EGT approaches or reaches that value, the start should be terminated or the fuel cut off per procedure to prevent overstressing the turbine blades. The other numbers aren’t used as the start limit because they either exceed the published maximum (735 C and 750 C) or are not the defined cap for a safe start (700 C is below the actual limit). So, the correct maximum start EGT is 725 C.

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