Bill Freeman wrote:

Paul,

I spent some time with one of  the guys from Cool Jugs (he is the
pattern maker) at OSH.  Dick Rutan's LE was parked nearby with
a set of the jugs on it.  He has gone back to the old P51 style inlet
and put a radiator in it, with an outlet just behind it.  Apparently
flew it from Mojave to OSH.

My impression is that these folks were much smarter than the average
small exhibitor you see at OSH.  Seemed to have a real chance of
making it work.  They seemed to have a pretty good grip on
where the "boogey men" were in the system, and seemed to be on
the road to make it work.  Still, they have a tough row to hoe;
folks in aviation are very slow to accept changes.  Not sure if it will
be worth it, depends SO much on doing a good job with the
aerodynamics of the radiators.

Aircooled submarine.  ;-)

I told them to contact you and ask for some advice.  Figured with
them a Camarillo, you'd eventually find out about it.  Forgot
to mention it to you.

Bill Freeman
Long EZ builder & pilot
BSME, MSME
EAA Technical Counselor

I agree Bill they do seem to a be a bit smarter than your average
experimenter. One person I met there had some experience in race car
engine building. The other's college major was in electrical engineering with 
a minor in mechanical engineering. Unfortunately cooling system design is a 
combination of many disciplines.

Yes I saw Dick's airplane at OSH with the P51 scoop and the cool Jug
engine but I can't find the pictures I thought I took :-)
Very timely as we have discovered that NACA scoops don't work
very well for thick radiators. Of course Perry's pusher ducted
fan seems to be an exception to the rule because of the strong 
suction.

Paul Lamar
 
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