Subject: Q2 Cooling
From: rotaryeng
Date: 6/16/2013, 4:18 PM
To: AAA-rotaryeng




   Throttle body inlet on right.  Bent radiator.  Exhaust and belly board.
 Radiator partially welded together.
 I think it could fit here pretty well.
 That's my youngest daughter, Anna.


   Lewis

 She is very cute :)

 OK I think we can get this to work. Plumb the rads in parallel
 if possible. What are the dimensions for the rads?



 Paul Lamar



 Rads are 8.5 x 13 x 1.5 each.  Welded joint is a common tank.  Plumbing in
 one end, through first core, the joint tank and into the next core.  Might
 be possible to come into central tank, then flow outward to end tanks, and
 rejoin plumbing back into the pump, but that is quite a bit more
 complicated.  Hoping to treat it as one big, but bent, radiator.

 I like the drawing.  How much depth would be needed for wedge opening?

 Lewis


Here is a more accurate dwg based on the actual size of the cores.
They are a bit on the marginal size so you are going to need a very
effective cowl flap. Don't worry about the drag as take off and
climb out happens at a speed were induced drag is high and you
won't notice any climb deterioration with the cooling cowl flap open
or closed. You will notice a strong cooling effect however.
As long as you don't have an open hole pumping air into the
cowl. The idea is to raise the pressure across the cores as high as
possible.

Start with 3 inches. You can always block some of it off if
you don't need it.

Paul Lamar

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