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Message-ID: <BD0DFE648E304E179D2AF026238C6402@ownerf1fc517b8>
From: "George Lendich" <lendich@aanet.com.au>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-3839191@logan.com>
Subject: Re: [FlyRotary] Re: Three or two?
Date: Fri, 18 Sep 2009 17:21:41 +1000
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Bill,
Good on Ya! I'm a bit behind my e-mails BTW.

I have a great solution for the PP problems of leaking coolant. I notice =
that PL advocates welding to the inner rotor steel liner - however not =
much to weld to, and then pressurizes the resin filler.
Now this is not my idea but it sis working well locally and that is to =
weld a Al tube to the inner Al housing - weld it rights around and then =
fill the remainder with resin. Seems to work much better than what was =
done previously and ahs held up in well in racing applications.=20
George ( down under)
  ----- Original Message -----=20
  From: WRJJRS@aol.com=20
  To: Rotary motors in aircraft=20
  Sent: Monday, September 07, 2009 5:06 AM
  Subject: [FlyRotary] Re: Three or two?


  Gonzalo,
  Sorry to be contrary, but in my opinion the ONLY way to go for a =
flying rotary is P-port. All of the original Power Sport engines (the =
Everette Hatch P.S.) ran P-ports. The manifolding for a P-port engine is =
vastly easier. In fact Hatch and Steve Beckham built several engines =
with P-ports that even ran reverse rotation so they could get proper =
propeller rotation with some gearboxes. You can even P-port an Renesis =
and it still works. The reason that Mazda isn't P-porting their race =
cars has nothing to do with if P-porting is better, it is racing =
organizations requirements. The reason for the side port Renesis is for =
emissions and low RPM fuel economy. Those are areas that are only =
important in a CAR. The typical aircraft runs 50% to 90% ALL THE TIME =
and P-ports are much better at mid to high RPMS. The Mazda Le Mans =
winning engine used P-ports and they were running with a fuel economy =
formula. (the fuel was limited) For high output P-ports just work =
better.
  Bill Jepson
    Gonzalo,

    A lot of people talk about peripheral porting rotaries but nobody is =
doing it with a rotary that they plan to fly behind.  If it was such a =
good thing, Mazda would be P-Porting their cars.  Instead they are going =
away even from the peripheral port for the exhaust with the Renesis. =20

    If 200 HP will do it for you the Renesis is the way to go.  This =
process of putting an alternative engine in a plane is hard enough =
without violating the KISS principle.

    Put in a Renesis, no turbo, no P-Port.

    Bill B

    =20


-------------------------------------------------------------------------=
---

    From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] =
On Behalf Of George Lendich
    Sent: Sunday, August 23, 2009 5:57 PM
    To: Rotary motors in aircraft
    Subject: [FlyRotary] Re: Three or two?

    =20

    Gonzalo,

    I don't know if the Renesis has a turbo version, I didn't think it =
did. All turbo 13B's require low compression rotors.




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<DIV>Bill,</DIV>
<DIV>Good on Ya! I'm a bit behind my e-mails BTW.</DIV>
<DIV>&nbsp;</DIV>
<DIV>I have a great solution for the PP problems of leaking coolant. I =
notice=20
that PL advocates welding to the inner rotor steel liner - however not =
much to=20
weld to, and then pressurizes the resin filler.</DIV>
<DIV>Now this is not my idea but it sis working well locally and that is =
to weld=20
a Al tube to the inner Al housing - weld it rights around and then fill =
the=20
remainder with resin. Seems to work much better than what was done =
previously=20
and ahs held up in well in racing applications.&nbsp;</DIV>
<DIV>George ( down under)</DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3DWRJJRS@aol.com =
href=3D"mailto:WRJJRS@aol.com">WRJJRS@aol.com</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dflyrotary@lancaironline.net=20
  href=3D"mailto:flyrotary@lancaironline.net">Rotary motors in =
aircraft</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, September 07, =
2009 5:06=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [FlyRotary] Re: Three =
or=20
  two?</DIV>
  <DIV><BR></DIV><FONT id=3Drole_document face=3DArial color=3D#000000 =
size=3D2>
  <DIV>
  <DIV>Gonzalo,</DIV>
  <DIV>Sorry to be contrary, but in my opinion the ONLY way to go for a =
flying=20
  rotary is P-port. All of the original Power Sport engines (the =
Everette Hatch=20
  P.S.) ran P-ports. The manifolding for a P-port engine is vastly =
easier. In=20
  fact Hatch and Steve Beckham built several engines with P-ports that =
even ran=20
  reverse rotation so they could get proper propeller rotation with some =

  gearboxes. You can even P-port an Renesis and it still works. The =
reason that=20
  Mazda isn't P-porting their race cars has nothing to do with if =
P-porting is=20
  better, it is racing organizations requirements. The reason for the =
side port=20
  Renesis is for emissions and low RPM fuel economy. Those are areas =
that are=20
  only important in a CAR. The typical aircraft runs 50% to 90% ALL THE =
TIME and=20
  P-ports are much better at mid to high RPMS. The Mazda Le Mans winning =
engine=20
  used P-ports and they were running with a fuel economy formula. (the =
fuel was=20
  limited) For high output P-ports&nbsp;just work better.</DIV>
  <DIV>Bill Jepson</DIV>
  <BLOCKQUOTE=20
  style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px =
solid"><FONT=20
    style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 =
size=3D2>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Gonzalo,<o:p></o:p></SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">A lot of =
people=20
    talk about peripheral porting rotaries but nobody is doing it with a =
rotary=20
    that they plan to fly behind.&nbsp; If it was such a good thing, =
Mazda would=20
    be P-Porting their cars.&nbsp; Instead they are going away even from =
the=20
    peripheral port for the exhaust with the Renesis.&nbsp;=20
    <o:p></o:p></SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">If 200 HP =
will do=20
    it for you the Renesis is the way to go.&nbsp; This process of =
putting an=20
    alternative engine in a plane is hard enough without violating the =
KISS=20
    principle.<o:p></o:p></SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Put in a =
Renesis,=20
    no turbo, no P-Port.<o:p></o:p></SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Bill=20
    B<o:p></o:p></SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
    <DIV>
    <DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" =
align=3Dcenter><FONT=20
    face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
    <HR tabIndex=3D-1 align=3Dcenter width=3D"100%" SIZE=3D2>
    </SPAN></FONT></DIV>
    <P class=3DMsoNormal><B><FONT face=3DTahoma size=3D2><SPAN=20
    style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
    face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
    <st1:PersonName w:st=3D"on">Rotary motors in =
aircraft</st1:PersonName>=20
    [mailto:flyrotary@lancaironline.net] <B><SPAN style=3D"FONT-WEIGHT: =
bold">On=20
    Behalf Of </SPAN></B>George Lendich<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Sunday, August 23, 2009 =
5:57=20
    PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> =
<st1:PersonName=20
    w:st=3D"on">Rotary motors in aircraft</st1:PersonName><BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> [FlyRotary] Re: =
Three or=20
    two?</SPAN></FONT><o:p></o:p></P></DIV>
    <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt"><o:p>&nbsp;</o:p></SPAN></FONT></P>
    <DIV>
    <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Gonzalo,</SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">I don't know if the =
Renesis has=20
    a turbo version, I didn't think it did. All turbo&nbsp;13B's require =
low=20
    compression =
rotors.</SPAN></FONT></P></DIV></FONT></BLOCKQUOTE></DIV>
  <DIV></DIV>
  <DIV>&nbsp;</DIV></FONT>
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