So do you think that, keeping the original cowling and the oil coller you
could have a larger thinner rad with the oil coller behind as per the
original stock design?
Will
William Daniell
LONGPORT
+57 310 295 0744
On Mon, Aug 1, 2016 at 2:19 PM, Frans Veldman <frans@privatepilots.nl>
wrote:
>
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> Hello Kingsley,
>
> > Regarding thinner radiators working better than thick ones .......
> > Does this hold true for radiators of the same area?
>
> The radiator I use has a slightly larger area but it also indirectly
> cools the oil. So yes I would say that even with the same area you
> would be better of with a thinner radiator. You need air going through
> the radiator but the original radiator is simply too thick for the
> airspeeds we are using and it almost blocks the air. I don't know
> where this design came from, but I have not seen any other airplane in
> our speed range which has a radiator that thick. The certified
> arplanes which use a Rotax engine all have a thin radiator and almost
> no air cooling of the cylinders and none of them have the cooling
> problems we have with our Europa's.
> To have the radiator in front of the engine also enables you to
> "recycle" the air coming out of the radiator to air cool the engine
> and to draw away the heat from the exhaust stack for free. Less air
> "consumption" means less drag, and you don't need the unsightly and
> draggy doghouse anymore because a very small air exit is all you need.
>
> Greetings,
> Frans
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