Europa-List: windscreen de-fogging

[Fred Klein <fklein@orcasonline.com>]

Gentlemen,

I'm attempting to select a couple of computer fans to be mounted louvers in the
top of the instrument panel module for the purpose of de-fogging the 
windscreen...I'm
uncertain as to what cfm ratings or sizes will do the job.

If anyone can pass on their experience w/ what amount of airflow is 
sufficient...or
insufficient...I'd be grateful

I suspect that my local climate in the Pacific NW of the US is similar to 
conditions
in UK.

Thanks in advance,

Fred
A-194