The Ford Barn

Joop · 07-05-2011, 05:12 AM

Found this on the internet.

Air through the radiator is the important consideration. That is where the heat transfer occurs. Meauring the air flow into the radiator that results from the turning fan is the test to run. That was done and reported in the Spring issue of the Model A Times. Page 7 contains a chart tht shows the results of three fans, the 2 blade, the 4 blade, and the 6 blade.
In front of the radiator the air speed (mph) created by the fan was measured as:
blades--------2----------4------6
500rpm---4.8--------4.5-----3.0mph
1000rpm--9.0--------9.6-----8.5mph
1500rpm--14----------14-----13.5mph
Now, Check this out and tell me which cools your A best wheather in a parade or on the road. If you are overheating it is not because of your 2 blade fan. Have these test results been contridicted as invalad? If so tell me where and by who!

07-05-2011, 05:12 AM	#12
Joop Senior Member Join Date: May 2010 Location: Glendale, AZ Posts: 3,062	Re: Plastic fan replacements Found this on the internet. Air through the radiator is the important consideration. That is where the heat transfer occurs. Meauring the air flow into the radiator that results from the turning fan is the test to run. That was done and reported in the Spring issue of the Model A Times. Page 7 contains a chart tht shows the results of three fans, the 2 blade, the 4 blade, and the 6 blade. In front of the radiator the air speed (mph) created by the fan was measured as: blades--------2----------4------6 500rpm---4.8--------4.5-----3.0mph 1000rpm--9.0--------9.6-----8.5mph 1500rpm--14----------14-----13.5mph Now, Check this out and tell me which cools your A best wheather in a parade or on the road. If you are overheating it is not because of your 2 blade fan. Have these test results been contridicted as invalad? If so tell me where and by who!