[TR] Push or pull

Randall tr3driver at ca.rr.com
Tue Oct 23 21:53:40 MDT 2007


> My adversary insisted 
> I was wrong and refused to discuss it further.  

Ask him if it matters which way a nut goes on a bolt.  Since the fan
effectively screws through the air, it's the same issue.

However, oddly enough, some fan makers do say to turn the blades around when
configuring as a pusher instead of a puller (in addition to reversing shaft
rotation by swapping the wires).  Apparently their fans are more efficient
when turning in a particular direction.

Randall


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