Thomas,

Nice research.

I found my notes on inclined radiators, they state

1. 0-20/30* will decrease cooling and increase drag.

2. Over 30* things improve.

3. At approx 55* cooling effectiveness is 30% greater than non-inclined rads

and drag is less by 20%.

 

George; do you have the source for that info? It may be a good idea to verify this information.  I don’t recall the specifics; but what I do recall is that the conclusion was configuration dependant, and should not be taken as generally applicable.  Sorry, but I don’t remember what the factors were; maybe something about the configuration of the core.

Or maybe my memory just isn’t right.  Worth checking.

All