On 2007-12-05, Airbus wrote:
Well, I must admit I don't have much experience with large radial engines.
Moreover, I accept the argument that some AC ramp lighting at night can produce
stroboscopic effects with props - I have not seen it myself, even though I
frequently fly at night, but I do accept the principle - if you get your plane
in the right position with respect to line-frequency, AC lighting at night you
should see stroboscopic effects, which will include "backwards turning"
illusdion, depending on your prop speed. So I stand corrected on this.

I've seen it plenty of times.

Not caused by lighting, but you can see the strobing effect in this
video I shot, caused by the frame rate of the video camera (note, the
strobing is at 50Hz since the source video is PAL):

http://www.youtube.com/watch?v=Nf5unfWZLDA

--
From the sunny Isle of Man.
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