Duxford AUTUMN AIRSHOW 2010

[Xplumberlives]

And of course the OTHER ADVANTAGE of being on THE MOUND is that you can't hear the BLOODY TANNOYS!

[Cluny]

Yes they were even more annoying than usual this time .
For Thumper

[Thumper]

Thanks, nice video. Haven't seen her at all this year. Hopefully won't be sold and I get a second chance next year to see her again

[10680]

Nicw vids Cluny. It has to do with the rotation speed of the props and the frames per second of the filming. Just like a car wheel appears to go backwards, then forwards and then backwards as it accelerates. As the throttles are on different settings, you'll see the props do different things. (I think).

Isn't it more do do with your eyes?

You view at 50Hz. 50 per second. If the speed is slightly faster (slower?) you see it in a slighter different position each time. ie. 12 o'clock, 11 o'clock, 10 o'clock... but if appearing faster you don't notice. If at exactly 50Hz can appears to be still. Or something like that. Maybe at 24 frames per second that has a similar effect.

[RLN]

Exactly, that's why things are filmed at 24 frames /sec, so that you see them normally.