Hi, Paul....I was doing some research for my radiator fan purchase, and

I came upon this website.

They sell the Spal fans, and their site states that the curved fans move

less air than straight

bladed fans, but are quieter.  Make sense?  Thanks in advance for your

comments.  Paul Conner,

Mobile, AL

Name: JayCorp

Technologies -

Specialty

Automotive and

   JayCorp Technologies - Specialty Automotive and Cellular

Accessories.htm          Cellular

Hi, again Paul....I see that my attachment did not work. Go to
www.jaycorptech.com  and click on the upper right Spal fan to see the
statement regarding the less efficient spiral fan versus the straight blade.
Sorry about that.  Paul Conner

 
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