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Date: Sat, 20 Mar 2004 00:03:38 -0600
From: Jim Sower <canarder@frontiernet.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: P51 scoop - splitting feeds?
References: <list-3102968@logan.com>
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<... how close to the mouth of the scoop should it be ...>
I would be inclined to make the best (longest), plenum I could for best pressure
recovery and then, split off if I have to (I plan to have the plenum serve both
radiators and oil coolers sort of like John Slade.  I would have a separate intake
for intercooler.   I would put cabin feeds in the front of the airplane by the cabin

Just a theory ... Jim S.

Chad Robinson wrote:

> Bulent Aliev wrote:
> > On 3/19/04 10:55 AM, "Chad Robinson" <crobinson@rfgonline.com> wrote:
> >
> >
> >>How are people splitting air from scoops into intake, cabin cooling, and
> >>radiator feeds? Are you just partitioning the scoop into separate output
> >>feeds? If so, how large should I make the feed to the intake air for the
> >>engine, and should it have a bypass to allow unused air to escape, or should I
> >>just feed it to the engine compartment/cowl and let the intake pull out what
> >>it will?
> >>
> >>I'm planning a single P51-style scoop that drops below the boundary layer, and
> >>I'd like to avoid having separate/extra armpit or similar scoops for other air
> >>supplies.
> >>
> >>Thanks,
> >>Chad
> >>
> >
> > What airplane are you building Chad?
>
> This is for a Cozy MKIV. This scoop is not set in stone but of all the methods
> I've seen I like it the best so far. If I can make the scoop an inch larger on
> one dimension and avoid an armpit scoop or similar for intake air, for
> instance, that would make me happy. But I don't know if it's enough to simply
> partition the scoop to achieve this, or something else is required. If a
> partition is the way to go, how close to the mouth of the scoop should it be?
>
> Regards,
> Chad
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html

--
Jim Sower ... Destiny's Plaything
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T