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

Maybe we get get a bunch of orders together and buy
a batch.
Anybody else interested in five feet of this stuff.
What would several hundred
pounds cost Perry? Anything in stock similar?

Paul Lamar

Try All Electronics at  www.allelectronics.com

They have good sized heat sinks for sale at surplus
prices. I believe the same place the electric motor
for the prop came from.  Jim Coffman

yea that is right in my neck of the woods. I'll stop
in in the next few days and see what they have. Good idea.

Paul Lamar

Yes, many eyes looking is better than two. I've been searching the
internet, working with two vendors trying to get some quotes on small
quantities. Only one vendor has the fins on two-sides but that isn't
popular in the electronics world, hence no stock. So I've been looking
at a lot of extrusions with fins only on one side, will have to
back-to-back them, which is unfortunate because  the base-plate then
gets thicker and heavier. The ideal I'm looking for would have a
base-plate thickness of 1/8", a width of around 10", and fin length 1",
and fins on both sides (like that 5013 drawing).

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

Perry try AAVID on the internet.

Paul Lamar
 
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