Airflow in drive case

[Gordon JC Pearce]

On Sat, 2006-06-17 at 22:02 -0700, dwight elvey wrote:

> I have even measured air flowing back towards the fin's output, right in 
> front
> of a fan and not much more than 8 inches away. Before understanding the 
> flow,

I can well believe that - airflow is a funny thing.  I've observed
raindrops blowing up the bonnet of a friend's Landrover, running down
the side, and then flowing *forwards* back to the front again.  This is
at 50mph into a strongish headwind!

Gordon.