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Old 06-01-2012, 01:33 PM   #42 (permalink)
aerohead
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foreshortening

Quote:
Originally Posted by SvdM View Post
I have often also wondered about this. It does appear from the smoke trails of very many cars that one can drop into the 22° quicker than the template suggests. However, these cars are ultra smooth already and I can see how sticking close to the template would be a safer bet for the DIYer.

Another thing to consider is the small amount of foreshortening in all of these photographs, which might of course appear more confidently to veer away from the template, but in fact does a little less so.
I think it was Bicycle Bob who first pointed out,how a manufacturer might position the camera in the wind tunnel to make for the most 'flattering' smoke filament images over the aft-body.
Without really long telephoto images,with outlines appearing closer to 'true-length',it's very difficult to actually 'see' the airflow sink.
Good eye!
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