The 20" box fans in Arizona cost less than $20 each from Home Depot and Lowes (which was less than the cost of gas to get to some of the invitationals) so I am not sure that the cost is too high. Interestingly they are considered seasonal items so I got the last two when I purchased them in October. I did get 2 different brands but found that the blade voltage changed by less than 10% between the 2 fan brands.
On the other hand I have seen far more variability on the CD motor voltages (up to 100% difference) and I have only tried 5 different motors so far.
PHXcoach wrote:On the other hand I have seen far more variability on the CD motor voltages (up to 100% difference) and I have only tried 5 different motors so far.
That's nice to know the fans are consistent. And yeah, motors are super variable. At one of my competitions my slow speed voltage was more than twice as large as my high speed one (not gonna lie, I was super freaked out).