>     Paul,
>
>     You suggested that an under the wing option might also work for > some of the Glass Goose coolers.
>
>     It looks like I have about 4"x30"x1" inside of the trailing edge > of each upper wing that might could be adapted to hold a thin, custom > oil cooler -- one on each side. You also mentioned that the boundary > layer would be pretty thin under the wing. Would a scoop about 1" down > from the wing's lower surface (25% of the 4") be deep enough? I could > probably taper this much back into the trailing edge without too much > problem. I'm guessing that most of the upper skin would have to be > removed to allow unobstructed air exit from the radiator's upper > surface. I would have to address all the lost surface material on both > the upper and lower skins, but this might be feasible.
>
>     Scott Gettings
>
>
> Perry did not have much luck with that configuration.
> Nor did Al Gietzen.
>
> The boundry layer would be thicker that far back.
>
> I'll think about it for a few hours and see if I can come up
> with something.
>
> Paul Lamar ...No rotor no motor.


Scott,
Five or six vortex generators under the wing out in front of your scoopmay make it effective.

Aubrey

It would be better to continue the duct out to the leading edge.
In that case there would be no doubt the scoop was working as well
as it could.

Scott, here is an idea for you. Set oil HE core vertical and use
the ME109 configuration. The flaps would help you get out of
the water.  You will need them on both sides to prevent yaw.


Paul Lamar

OK, thanks, I'll keep exploring these concepts.  The ME109 looks like it
uses a very small inlet duct with no boundary layer offset, even though
it is near the trailing edge.  Do the rear flaps make up for this
suboptimal intake?

Anything I do near the pylon has to have a minimal airflow effect on
this already-troubled air going into the prop -- so any ducting would
have to be relatively unobtrusive in this area.  A thin duct under the
wing might be OK.

I still may be able to shoehorn the oil cooler on the cool side of the
engine if I can get a big enough duct around the front radiators. I'm
waiting for Ed's oil pan so I can re-mount my engine and continue this
process.

Scott Gettings

Probably but here are some rough 3Ds of the oil cooler in
the trailing edge of the wing.