Yes, your fan is very close to what mine is.
As for the blades being splayed, I am not sure of the reasoning but it sure pulls the air. No issues with balance. I also do not notice any increase in noise using this type of fan.
Jim
Yes, your fan is very close to what mine is.
For noise. The different gaps help keep fan noise down.Jims65cyclone wrote: ↑Wed Nov 01, 2023 4:56 pmThis is an aside, but what was the purpose of the non-symmetrical placement of the blades on those fans? Seems like it would throw the balance out of whack.
Jim
I'd bet you'd loose that money Jim. it can be balanced & not be symmetrical. It's the way the blades are placed, they counter balance each other. lots of vehicles were built with these.Jims65cyclone wrote: ↑Wed Nov 01, 2023 8:04 pmIt still seems out of balance. If you ran a screw driver through the center hole and held it sideways, I'd bet money the three blades would sink to the bottom. Bolt that to the front of an engine and spin it at a couple thousand rpm, I'd expect it to tear something up. Is it counterbalanced some way?
Jim
Obviously it must be balanced or there'd be millions of them out there flying apart. There must be some counter balance weights built into the two-blade side of the fan. However they did it, it works.