From: "Richard Van Camp" <
flyrotary@lancaironline.net>
Date: Sun, 5 Feb 2017 19:09:35 +0000 (UTC)
Message-ID: <
1782902265.1360826.1486321775821@mail.yahoo.com>
Subject: Source for P-Port Templates?
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One of the aftermarket rotary engine builder used to supply the p-port templates at little or no cost. Does any recall who this was? Alternatively, does anyone have these and can send me a duplicate? The P-Port will give me all the power I need (!210 hp) so, I do not see any reason for me to add a turbo.
Rick
Rotary motors in aircraft Digest #4380
1) Source for P-Port Templates?
by Richard Van Camp
2) Re: Source for P-Port Templates?
by Charlie England
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From: "Charlie England" <
flyrotary@lancaironline.net>
Date: Sun, 5 Feb 2017 15:09:42 -0600
Message-ID: <CAHxyc51TjCf6q9gxDu=0yE7xDCJ-0LnV-sWNOLck90gvJ35=
rg@mail.gmail.com>
Subject: Re: [FlyRotary] Source for P-Port Templates?
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On Sun, Feb 5, 2017 at 1:09 PM, Richard Van Camp <
flyrotary@lancaironline.net> wrote:
> One of the aftermarket rotary engine builder used to supply the p-port
> templates at little or no cost. Does any recall who this was?
> Alternatively, does anyone have these and can send me a duplicate? The
> P-Port will give me all the power I need (!210 hp) so, I do not see any
> reason for me to add a turbo.
>
> Rick
>
> Hi Rick,
The two biggest vendors in the USA are Racing Beat and Mazdatrix, but I
didn't find a P-port template on either site when I looked just now. One
technique I've seen is to assemble an end plate, rotor, E-shaft and rotor
housing so that when you rotate the e-shaft, you can see where the apex
seal falls on the rotor housing as the rotor closes the side port. That
would be approximate position of the 'bottom' of the P-port in the rotor
housing. At that point, decide how big you want the port to be, measure
'up' half that diameter, and start boring, centered fore/aft in the housing.
If you look at various pics of P-ported housings, the diameter and position
of the port seems to vary quite a bit, so....
I know Bill has been working with one of the original Powersport principals
on a P-port with smaller diameter ports for more reasonable rpm/power
levels suitable for a/c; maybe he will jump in with more info.
Charlie