Quote Originally Posted by mcoffey View Post
Good stuff Martin, but this kind of confuses me. How good something have 0 pressure when it's moving the maximum amount air?

andyc
I didn't show you in the pictures, but I am adding restriction to get at the middle points and the static pressure point.

I should probably add one more test at the bottom on a radiator. I'm just finding that my anemometer looses accuracy below 10cfm. So on fans like this noisblocker, I start hitting that minimum 10cfm wall at around 9Volts. It'll probably work ok for the stronger fans though.