Re: Canadian Fans -Reply

[Steve Wickland x3128 <wickland@eng.adaptec.com>]

John Crawley wrote:
> 
> The 5-blade fan info. seems to have been taken from some research that
> I did on cooling. The air conditioning instructors in the college that I work
> in told me that 5-bladed asymmetrical fans cool better than symmetrical 6
> blades fans because they set up a moving vortex of air rather then a
> whirl wind drawing from one place. They are installed to keep fan noise
> down as the moving vortex is quieter than a stable one but they cool
> better since the air is drawn from more than one spot on a rad. They do
> not move more air they just move it differently. True or not I do not know .
> . . any comments? What I do know is that I use a Volvo fan  on my TIGER
> with a full surround rad should and have never had it over-heat including
> pulling my fully loaded tent trailer up hill, in stop and go traffic through
> construction at 115 F. Works for me.
> Godspeed
> Jc


John,
The 6 bladed Ford fan that everyone is talking about is not symetric.  I
really don't know how it would compare to the 5 blade fan though.
Steve W.