You might buy some of this extrusion and make a sump tank out of it.
It will dissipate any heat that is in the fuel when the fuel is
recirculated to the sump tank. The neat thing about the sump tank on
the back of the firewall  is you can see that you have fuel
with a clear plastic sight tube on the instrument panel.
When it starts to go down you know you are in real trouble :)
One peice of this on the floor of the sump tank should be enough.

Perry Mick is probably building an oil pan out of this stuff as we

speak.

Paul Lamar

Perry Mick wrote:

How did you guess? Yes, I've designed an oil pan with fins.
Unfortunately, that 5013 extrusion is not in stock, they would have to
manufacture it. Which means I would have to buy several hundred pounds
of the stuff. So I'm looking at other extrusions or possibly having the
fins made of 1/16" aluminum angles welded on both sides of a 1/8" plate.
A welder I know in the Denver area will weld it up for me. He has been
in the welding business for 25 years. I'm hoping this will reduce my oil
temps, it is better than adding another oil cooler. If it works, my
friend in Denver will produce them for people who want one.

I removed the oil cooler from the plane this morning to tap in all 8 (!)
of those measurement points you want.

--
Perry Mick
Custom Composite Props
mick@bridgingworlds.com
http://www.ductedfan.com

HOLD EVERYTHING I just came up with a much much better idea
after looking at the AAVID web site. This is a much much lighter weight
way of doing it and much much less cost than an extrusion. 
Better heat transfer as well for icing on the cake.

Can be made on any good press brake with a little custom tooling.
I got a good friend that can make up this stuff. We start with
0.065 thick 6061-O and form it up. Then send it out for heat treat.

The only tricky part is sealing the ends. Probably the best way
to do that is mash it flat on the ends with hydraulic press when it is still
soft. If that proves impractical aluminum brazing might be the way
to go. On third thought we can taper the tooling. On fourth thought
we can blank out the whole oil pan and bend it up ready for
tig welding. Yes! One operation and one heat treat.

I'll draw a 3D.


Paul Lamar


 
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