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From: "kevin lane" <n3773@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2606459@logan.com>
Subject: Re: [FlyRotary] Life is better at 5 psi
Date: Sat, 27 Sep 2003 18:09:43 -0700
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MessageRusty - as airplane builders we all must be eternal optimists. =
It is great to hear you get back the spirit. I commend you on sharing =
both your accomplishments and follies with us all. I hope you realize =
that we are all behind you and want nothing other than total success for =
your project. It is easy to throw out terms such as "guinea pig", but =
truthfully we view you as "the professor". I hope our encouragement and =
interest will help you get through these trials. All of this is so =
symbolic of life, no? So we all pick to follow the lemmings, the sheep, =
or the eagles( we always say eagles even though the buzzards are =
incredible fliers, not to mention the blue herons and pelicans :-))
please note that my -6A uses a large loop from the gear leg to the =
caliper, which reduces the fatigue on this joint. It has worked fine =
for 1000 hrs. Avoid a single tight bend, these don't take the flexing =
without breaking.
Kevin Lane Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse w/ internet explorer)
----- Original Message -----=20
From: Russell Duffy=20
To: Rotary motors in aircraft=20
Sent: Saturday, September 27, 2003 5:55 PM
Subject: [FlyRotary] Life is better at 5 psi
Greetings,
I took the plane out again today, and found it to be MUCH more =
satisfying at 5 psi of boost. I ordered another excellent used 89-91 =
turbo off Ebay today, and I'm going to pick up a crack free exhaust =
manifold to go with it. Before I install the new turbo, I'll port the =
crap out of the wastegate, to see if I can get down to something more =
reasonable, like 5 psi, rather than 10+ like I get now. If that works, =
I can actually use full throttle, which will make me, and Lynn happy =
(see Lynn, I do pay attention). I'm also trying to pick up an 87-88 =
turbo actuator, which was only 5.5 psi I think. =20
As I mentioned before, the new cowl is on order, and I'm starting to =
work out the details to get this all inside the stock cowl. I can't =
imagine how nice it might fly without all the cowl and tire drag. =
Realistically, it will probably be around the first of the year before =
this all happens, but at least I'm back on track, and excited about =
doing it all. Thanks for putting up with my earlier depression. This =
IS going to work, and it IS going to be the hotrod I hoped for. =20
Cheers,
Rusty (psyched again)
9-27-03 .7 hrs / 2.7 total
=20
Started my climb out at 4 psi of boost, then modified to 5 psi around =
a thousand feet or so. I couldn't get any rational VSI readings from =
the Anywhere map, but it sure did climb better than ever. The oil and =
water both stayed right at 180 degrees, so no problems there. I had the =
usual ceiling of about 2500 ft, so I couldn't go higher for any real =
testing. Here are the numbers for 14 degrees of pitch:
=20
Boost (over ambient) / MAP / RPM / MPH
Climb
4 psi / 38" / 5600 / 100
5 psi / 40" / 5800 / 100
=20
Cruise at 2000 ft
0 psi / 28" / 5600 / 130
3 psi / 34" / 6000 / 145
5 psi / 38" / 6300 / 155
=20
Once I returned (with another beautiful landing I might add), I =
planned to fill the tanks, and increase the pitch of the prop to 16 =
degrees. =20
=20
Unfortunately, I found that my left brake line is leaking again. The =
line was made of slightly softer aluminum than Van may have had in mind, =
but I can't figure out what was actually in the RV-8, and he doesn't =
spec the material for the RV-3 either, so I thought I'd give it a try. =
I left a loop of brake line at the caliper, and I believe that vibration =
is causing this to break at the flare. After one of the early leaks, =
the brake on the left has been "chattering", rather than smoothly =
braking, so I figured it must have been soaked with fluid. To make sure =
this never happens again, I will replace the pads (which are 22 years =
old) on both brakes, and replace the lines with stronger aluminum. I =
will also get rid of the loop of line, since it could be part of the =
problem. It'll be nice weather tomorrow, but I won't be flying. =20
=20
I found one other problem today, my air vent sucks, and I mean =
literally. Rather than blowing air on me like it's supposed to, it has =
a pretty large suction on it. One way or another, air is coming in, so =
I guess it's still ventilation. =20
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"urn:schemas-microsoft-com:office:office"><HEAD><TITLE>Message</TITLE>
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3D"Comic Sans MS" size=3D2>Rusty - as airplane builders =
we all must=20
be eternal optimists. It is great to hear you get back the =
spirit. I=20
commend you on sharing both your accomplishments and follies with us =
all. =20
I hope you realize that we are all behind you and want nothing other =
than total=20
success for your project. It is easy to throw out terms such as =
"guinea=20
pig", but truthfully we view you as "the professor". I hope our=20
encouragement and interest will help you get through these trials. =
All of=20
this is so symbolic of life, no? So we all pick to follow the =
lemmings,=20
the sheep, or the eagles( we always say eagles even though the buzzards =
are=20
incredible fliers, not to mention the blue herons and pelicans =
:-))</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS" size=3D2></FONT> </DIV>
<DIV><FONT face=3D"Comic Sans MS" size=3D2>please note that my -6A uses =
a large loop=20
from the gear leg to the caliper, which reduces the fatigue on this =
joint. =20
It has worked fine for 1000 hrs. Avoid a single tight bend, these =
don't=20
take the flexing without breaking.</FONT></DIV>
<DIV>Kevin Lane Portland, OR<BR>e-mail-> <A=20
href=3D"mailto:n3773@comcast.net">n3773@comcast.net</A><BR>web-> <A=20
href=3D"http://home.comcast.net/~n3773">http://home.comcast.net/~n3773</A=
><BR>(browse=20
w/ internet explorer)</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=3D13brv3@bellsouth.net =
href=3D"mailto:13brv3@bellsouth.net">Russell=20
Duffy</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> Saturday, September 27, =
2003 5:55=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [FlyRotary] Life is =
better at 5=20
psi</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=3D664294300-28092003><FONT=20
face=3DArial>Greetings,</FONT></SPAN></DIV>
<DIV><SPAN class=3D664294300-28092003><FONT=20
face=3DArial></FONT></SPAN> </DIV>
<DIV><SPAN class=3D664294300-28092003><FONT face=3DArial>I took the =
plane out=20
again today, and found it to be MUCH more satisfying at 5 psi of =
boost. =20
I ordered another excellent used 89-91 turbo off Ebay today, and I'm =
going to=20
pick up a crack free exhaust manifold to go with it. Before I =
install=20
the new turbo, I'll port the crap out of the wastegate, to see if I =
can get=20
down to something more reasonable, like 5 psi, rather than 10+ like I =
get=20
now. If that works, I can actually use full throttle, which will =
make=20
me, and Lynn happy (see Lynn, I do pay attention). I'm=20
also trying to pick up an 87-88 turbo actuator, which was only =
5.5 psi I=20
think. </FONT></SPAN></DIV>
<DIV><SPAN class=3D664294300-28092003><FONT=20
face=3DArial></FONT></SPAN> </DIV>
<DIV><SPAN class=3D664294300-28092003><FONT face=3DArial>As I =
mentioned before,=20
the new cowl is on order, and I'm starting to work out the details to =
get=20
this all inside the stock cowl. I can't imagine how nice it =
might=20
fly without all the cowl and tire drag. Realistically, it will =
probably=20
be around the first of the year before this all happens, but at =
least I'm=20
back on track, and excited about doing it all. Thanks for =
putting=20
up with my earlier depression. This IS going to work, and it IS =
going to=20
be the hotrod I hoped for. </FONT></SPAN></DIV>
<DIV><SPAN class=3D664294300-28092003><FONT=20
face=3DArial></FONT></SPAN> </DIV>
<DIV><SPAN class=3D664294300-28092003><FONT=20
face=3DArial>Cheers,</FONT></SPAN></DIV>
<DIV><SPAN class=3D664294300-28092003><FONT face=3DArial>Rusty =
(psyched=20
again)</FONT></SPAN></DIV>
<DIV><SPAN class=3D664294300-28092003><FONT=20
face=3DArial></FONT></SPAN> </DIV>
<DIV><SPAN class=3D664294300-28092003></SPAN> </DIV>
<DIV><SPAN class=3D664294300-28092003><FONT=20
face=3DArial></FONT></SPAN> </DIV>
<DIV><SPAN class=3D664294300-28092003>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT =
size=3D2><st1:date=20
Year=3D"2003" Day=3D"27" Month=3D"9">9-27-03</st1:date><SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>.7 hrs<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>/<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>2.7 total</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><o:p><FONT=20
size=3D2> </FONT></o:p></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT =
size=3D2>Started my climb=20
out at 4 psi of boost, then modified to 5 psi around a thousand feet =
or=20
so.<SPAN style=3D"mso-spacerun: yes"> </SPAN>I couldn=92t get =
any rational=20
VSI readings from the Anywhere map, but it sure did climb better than=20
ever.<SPAN style=3D"mso-spacerun: yes"> </SPAN>The oil and water =
both=20
stayed right at 180 degrees, so no problems there.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>I had the usual ceiling of =
about 2500=20
ft, so I couldn=92t go higher for any real testing.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>Here are the numbers for 14 =
degrees of=20
pitch:</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><o:p><FONT=20
size=3D2> </FONT></o:p></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT =
size=3D2>Boost (over=20
ambient) / MAP / RPM / MPH</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT =
size=3D2>Climb</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT size=3D2>4 =
psi / 38=94 / 5600=20
/ 100</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT size=3D2>5 =
psi / 40=94 / 5800=20
/ 100</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><o:p><FONT=20
size=3D2> </FONT></o:p></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT =
size=3D2>Cruise at 2000=20
ft</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT size=3D2>0 =
psi / 28=94 / 5600=20
/ 130</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT size=3D2>3 =
psi / 34=94 / 6000=20
/ 145</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT size=3D2>5 =
psi / 38=94 / 6300=20
/ 155</FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><o:p><FONT=20
size=3D2> </FONT></o:p></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT size=3D2>Once =
I returned=20
(with another beautiful landing I might add), I planned to fill the =
tanks, and=20
increase the pitch of the prop to 16 degrees.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN></FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><o:p><FONT=20
size=3D2> </FONT></o:p></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT =
size=3D2>Unfortunately, I=20
found that my left brake line is leaking again.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>The line was made of =
slightly softer=20
aluminum than Van may have had in mind, but I can=92t figure out what =
was=20
actually in the RV-8, and he doesn=92t spec the material for the RV-3 =
either, so=20
I thought I=92d give it a try.<SPAN style=3D"mso-spacerun: yes"> =
</SPAN>I=20
left a loop of brake line at the caliper, and I believe that vibration =
is=20
causing this to break at the flare.<SPAN style=3D"mso-spacerun: =
yes"> =20
</SPAN>After one of the early leaks, the brake on the left has been=20
=93chattering=94, rather than smoothly braking, so I figured it must =
have been=20
soaked with fluid.<SPAN style=3D"mso-spacerun: yes"> </SPAN>To =
make sure=20
this never happens again, I will replace the pads (which are 22 years =
old) on=20
both brakes, and replace the lines with stronger aluminum.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>I will also get rid of the =
loop of=20
line, since it could be part of the problem.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>It=92ll be nice weather =
tomorrow, but I=20
won=92t be flying.<SPAN style=3D"mso-spacerun: yes"> =
</SPAN><SPAN=20
style=3D"mso-spacerun: yes"> </SPAN><SPAN=20
style=3D"mso-spacerun: yes"> </SPAN></FONT></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><o:p><FONT=20
size=3D2> </FONT></o:p></P>
<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><FONT size=3D2>I =
found one other=20
problem today, my air vent sucks, and I mean literally.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>Rather than blowing air on =
me like=20
it=92s supposed to, it has a pretty large suction on it.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>One way or another, air is =
coming in,=20
so I guess it=92s still ventilation.<SPAN style=3D"mso-spacerun: =
yes"> =20
</SPAN></FONT></P></SPAN></DIV></BLOCKQUOTE></BODY></HTML>
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