When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Have you ever noticed that the radiator fan does not have the pale parts equidistant (angularly)?
So I tell myself that there must be a good reason? But what !
thank you for the link, and in addition I have my answer for the balancing:The fan blades are spaced such that the center of mass is placed exactly on the fan axis to minimize fan vibration
In aerospace we call the noise phenomenon a "one per rev harmonic".
Equally spaced blades when traveling over a strake or other obstruction may create a noise harmonic,
All Chevy fans are ASSYMETRIC for that very reason.
In aerospace we call the noise phenomenon a "one per rev harmonic".
Equally spaced blades when traveling over a strake or other obstruction may create a noise harmonic,
All Chevy fans are ASSYMETRIC for that very reason.
Unk
Well....except the 69' 427/400 fan.....which sounds like seven dump trucks screaming in first gear through your cul de sac.......
Radiator fan is not balancing
