Why do propellors have white markings on their tips?
1 Answer
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It is so you will see a circle when they are turning. Without contrasting bright tips turning propellers are invisible, and pose a grave risk for someone who is deaf, wearing heavy hearing protection, or distracted by other noises.
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1$\begingroup$ @J..., excellent video! Do you mind if I add that to my answer for completeness? (It was late last night when I answered...) $\endgroup$ Mar 3, 2021 at 15:36
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1$\begingroup$ Sure. It's not mine - I just grabbed a link from shutterstock. $\endgroup$– J...Mar 3, 2021 at 15:38
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$\begingroup$ On second thought, I think links are discouraged in answers because they can expire and break. $\endgroup$ Mar 3, 2021 at 17:04
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$\begingroup$ Yes, but that's largely if the substance of the answer is contained in the link. In this case it's just supporting material - the answer stands alone without it. That said, there are also some nice stills in the dupe so... $\endgroup$– J...Mar 3, 2021 at 18:11