I am seeing more and more of these. They must be working
fine. This was on a Honda powered something or other seen at
Arlington. When we first proposed this about a year ago or so
 we got a lot of
email whining about how ugly it was. The fact remains it is quick,
simple and it works. It also requires minimal ducting fabrication.
Guaranteed to get you in the air quicker. Especially good on a pusher.

IMHO this guy overdid the opening required. Only a few inches
are needed.

Paul Lamar

"Rosine, Steve - NV" wrote:

During the second revision of my Mustang II rotary cooling system, I
incorporated some of the ideas discussed here a while back.  Attached
are a few pictures.   This appears to be seriously overdesigned--
equilibrium temperature does not exceed 160F on ground runs at 4000
engine rpm on summer evening.  Radiator flaps open or closed makes about
a 10 deg. Difference. Note that on the Mustang II, the wing flap
interferes with the radiator outlet.  I assume if I need flaps, I'll be
at low power setting anyway.
  I haven't flown it yet, but expect to this summer.  Since these
pictures were taken I have added those constant torque hose clamps.

Steve Rosine

 
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