Will someone help me understand how or why 5 bladed fans have their blades clocked at non symmetrical degrees? A recent posting by Mikey, where he is selling an AC 5 blade fan, shows it with what I have guesstimated are the clocking degrees of the blades to be; #1 is at 12:00 or 360 degrees, #2 is at about 2:30 or 070 degrees, #3 is at about 4:30 or another 140 degrees, #4 is at about 7:00 or another 230 degrees and #5 is at 9:00 for 270 degrees. That leave the #5 to #1 blade with another 90 degrees or back to 360 degrees. My thought is the fan assembly looks to be unbalanced as the blades, which appear to be all the same size, are not equally distributed. 4 blade fans have the blades equally distributed, what am I missing?