APR power 1 engine is limited to how many minutes?

• A. 5 minutes
• B. 10 minutes
• C. 15 minutes
• D. 20 minutes

Answer: (B)

High-thrust, short-duration settings are limited to protect the engine from overheating and excessive wear. APR power one is such a mode: it gives you a quick performance boost, but you can hold it only for a fixed, brief window to keep temperatures and mechanical stresses within safe limits. Among the options, the middle value represents that actual limit, balancing the need for a burst of power with the safety margins of the engine. Using less than that full window doesn’t fully leverage the capability, while extending beyond it risks overheating and reduced engine life.