Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
A mechanism that automatically synchronizes all propellers of a
multiengine, propeller-driven aircraft so that they rotate at the
same speed. Propeller synchronization serves mainly to increase the
comfort of crew and passengers, since its primary purpose is to
reduce the "beats" generated by propellers that are turning at
slightly different speeds. These beats can become very irritating
to persons inside the aircraft after a time. Synchronization is not
normally necessary for proper operation of the aircraft. Some
aircraft provide a visual indicator of propeller synchronization in
the cockpit. Pilots can use this indicator to decide whether or not
to engage propeller synchronization, or to help them synchronize
propeller speeds manually.
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