My "XS" inlet has been modified to half the CSA of the original XS with
dimension of 8" x 1 3/4". This is similar to the area of the Ban-bi. Seems
to work OK (in fact it tends to overcool).
Duncan McF.
----- Original Message -----
From: "Roger Anderson" <randerson@skewstacks.freeserve.co.uk>
Subject: Re: Europa-List: Re: Europa-List Digest: 13 Msgs - 10/16/04
<randerson@skewstacks.freeserve.co.uk>
>
>
> <graham@gflight.f9.co.uk>
> >
> > I am disappointed with the design of the cooling duct on the XS. IMHO
(in
> > other words my guess) the duct takes in about twice as much air as it
> needs
> > but doesn't duct it smoothly, neither is it properly sealed to keep CO
etc
> > where it belongs. Not all the air coming in goes for cooling.
> > Look at the duct on a BanBi they don't overheat AFAIK. Inlet area is
much
> > smaller, so is outlet.
> > The duct has to smoothly recover the pressure of the entering air, push
it
> > through the radiators, and nowhere else, except the cabin for heating.
> then
> > accelerate it back to flying speed or better still, greater than flying
> > speed. I wish someone would refine the design a little. It would make
the
> > airplane look even prettier. We should not be too hard on Ivan, he was
> > under pressure to generate some cash at the time. Quite a few folks jobs
> > depended on him not making too many bum decisions. Pity it was all
wasted
> > when he was moved aside. (my view from some distance)
> > Graham
> > Graham
> >
> >
> John Scott at Cambridge shares your opinion and did say that he was
> working on the design of an XS cowling to incorporate a smaller air inlet
> specifically designed to optimise the thrust from the propeller.
>
>
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