Aural Warnings: NR less than or equal to _______ RPM.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Mission Helicopter-65E Test with flashcards and multiple choice questions. Each question has hints and explanations. Get ready for your exam!

Multiple Choice

Aural Warnings: NR less than or equal to _______ RPM.

Explanation:
Low rotor speed alerts are meant to warn the crew before NR reaches a dangerous level, so there’s time to take corrective action and recover rotor speed. In the MH-65E, the aural warning is set to trigger at 345 RPM. This sits below normal operating rotor speeds but well above the point where rotor authority could be lost, giving a practical warning window to adjust power and rotor loading. Setting the threshold higher would cause nuisance warnings during normal dips, while setting it lower would leave less time to react. Hence 345 RPM is the appropriate threshold for this helicopter.

Low rotor speed alerts are meant to warn the crew before NR reaches a dangerous level, so there’s time to take corrective action and recover rotor speed. In the MH-65E, the aural warning is set to trigger at 345 RPM. This sits below normal operating rotor speeds but well above the point where rotor authority could be lost, giving a practical warning window to adjust power and rotor loading. Setting the threshold higher would cause nuisance warnings during normal dips, while setting it lower would leave less time to react. Hence 345 RPM is the appropriate threshold for this helicopter.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy