<VV> Electric Fans

[Padgett]

>  And if they're put off by that then my "scam alert" warning goes 
> off.  I'm not saying it IS a scam, just that their not wanting to provide 
> data and not supporting us getting data on our own as, at best, 
> unprofessional.

While I agree with this viewpoint, at the same time I am a proponent of 
electric fans. 40 years on just about all cooling today is done with 
electric fans and the size/form factor needed is now available.

Advantage: An electric fan is "on demand". When not needed it is not 
drawing any power. When it is (such as at a stop light after coming off an 
interstate when the blower is at minimum speed). The other advantage is 
that when peak power is needed (passing), the power is drawn from the 
stored power in the battery rather than the engine.

Disadvantage: The peak flow is probably not as high.

I suspect that the best answer would be a combo: perhaps a much smaller 
pulley to slow down/ reduce the HP of the stock fan at speed and an 
electric "auxiliary" to make up the difference at high load and when idling.

Would like to know what happened in the test but is not necessarily an 
either/or decision, a hybrid answer has advantages also.

Now just for a nut thought, an a/c clutch can handle 10 hp but would add 
rotational mass.

Padgett