The most CFM in a 120mm fan....

[sitka]

Hovercraft=using a gas powered leaf blower at the end of the runway when a Lancaster Bomber taxied out and did a run-up and a tornado touched down a few feet away. Man forget the noise, I was really scared when that happened.

 

[dxkj]

dang dude, I dont know if Im going to be breaking any local noise laws then... maybe I should stay below the 1000CFM level...