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Subject: RE: [FlyRotary] High speed taxi part 2 w/nose lift
From: "Luciano, Luis I CIV PEOSUB, PMS404P" <luis.i.luciano@navy.mil>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Thread-Topic: [FlyRotary] High speed taxi part 2 w/nose lift
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Date: Fri, 25 May 2012 15:15:56 -0400

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Great to hear Chris!  I'm finally at the Velocity Factory working on my XL =
and can't wait for the day to be at your stage.  Keep the reports coming...=
 I'm going to need them!

Luis Luciano


From: Chris Barber
Sent: Fri 5/25/2012 2:32 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] High speed taxi part 2 w/nose lift


After getting my DAR inspection and Repairman Certificate a few weeks ago, =
I did two high speed taxi test with disappointing results. The engine temps=
 on my two rotor 13b rotary were extremely high. Well into the 250 degree r=
ange after the long taxi (9000 foot runway) and the quick jaunt down 17R. O=
bviously unacceptable. I did seem to avoid engine damage apparently by grac=
e and the short duration.=20

Over the last few weeks I have focused on cooling mods. This time I followe=
d the advice from Paul Lamar's book "How to Cool Your Wankle" more honestly=
 and put the oil and coolant heat exchangers under the engine and a bit int=
o the airstream for solid ram air.=20

Today I repeated the long taxi for high speed taxi test 3. Outside temp was=
 96 degrees. Temps down Hotel stayed around 165 degrees to Alpha. I had to =
wait for a Grauman to take off. Ran the engine up a bit to verify mixture. =
By the time I called the tower to take the active coolant temps had gotten =
to about 185.=20

I took a breath and smoothly added power and started my run down the center=
 line. Speed came in as I brought power to just over 5000 RPM. I reached 60=
 knots really  quickly. (posted rotation speed range). I retarded the power=
 a bit to maintain 60 ish knots took a mental breath....and raised the nose=
. The nose actually lifted  Holy crap....that is almost flight. I brought b=
ack power and the nose settled (uh, by settled, I mean bounced ;-)).=20

Ok. While really cool to me, the coolest part was when I noticed that when =
I checked the coolant temp just as the nose was down, the coolant temp had =
DROPPED to the high 170's. A drop. Imagine that!!!

I pulled off at Charlie and taxied back to my hangar with the temps around.=
 185. They just hit 190 before I shut down. Again, it is in the mid 90's to=
day.=20

I don't know about y'all, but this has been a pretty good day off so far.=20

Thanks for your support.=20

Chris Barber
Houston KEFD
Velocity SE/FG
Rotary 13b turbo w/Mistral Intake
RWS PSRU/EC2/EM2
Dynon SkyView SV-7

Sent from my iPhone 4
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<HTML><HEAD></HEAD>
<BODY>
<DIV id=3DidOWAReplyText13949 dir=3Dltr>
<DIV dir=3Dltr><FONT face=3DArial color=3D#000000 size=3D2>Great to hear Ch=
ris!&nbsp; I'm finally at the Velocity Factory working on my XL and can't w=
ait for the day to be at your stage.&nbsp; Keep the reports coming... I'm g=
oing to need them!</FONT></DIV>
<DIV dir=3Dltr><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV dir=3Dltr><FONT face=3DArial size=3D2>Luis Luciano</FONT></DIV></DIV>
<DIV dir=3Dltr><BR>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> Chris Barber<BR><B>Sent:</B> Fri =
5/25/2012 2:32 PM<BR><B>To:</B> Rotary motors in aircraft<BR><B>Subject:</B=
> [FlyRotary] High speed taxi part 2 w/nose lift<BR></FONT><BR></DIV>
<DIV><PRE style=3D"WORD-WRAP: break-word">After getting my DAR inspection a=
nd Repairman Certificate a few weeks ago, I did two high speed taxi test wi=
th disappointing results. The engine temps on my two rotor 13b rotary were =
extremely high. Well into the 250 degree range after the long taxi (9000 fo=
ot runway) and the quick jaunt down 17R. Obviously unacceptable. I did seem=
 to avoid engine damage apparently by grace and the short duration.=20

Over the last few weeks I have focused on cooling mods. This time I followe=
d the advice from Paul Lamar's book "How to Cool Your Wankle" more honestly=
 and put the oil and coolant heat exchangers under the engine and a bit int=
o the airstream for solid ram air.=20

Today I repeated the long taxi for high speed taxi test 3. Outside temp was=
 96 degrees. Temps down Hotel stayed around 165 degrees to Alpha. I had to =
wait for a Grauman to take off. Ran the engine up a bit to verify mixture. =
By the time I called the tower to take the active coolant temps had gotten =
to about 185.=20

I took a breath and smoothly added power and started my run down the center=
 line. Speed came in as I brought power to just over 5000 RPM. I reached 60=
 knots really  quickly. (posted rotation speed range). I retarded the power=
 a bit to maintain 60 ish knots took a mental breath....and raised the nose=
. The nose actually lifted  Holy crap....that is almost flight. I brought b=
ack power and the nose settled (uh, by settled, I mean bounced ;-)).=20

Ok. While really cool to me, the coolest part was when I noticed that when =
I checked the coolant temp just as the nose was down, the coolant temp had =
DROPPED to the high 170's. A drop. Imagine that!!!

I pulled off at Charlie and taxied back to my hangar with the temps around.=
 185. They just hit 190 before I shut down. Again, it is in the mid 90's to=
day.=20

I don't know about y'all, but this has been a pretty good day off so far.=20

Thanks for your support.=20

Chris Barber
Houston KEFD
Velocity SE/FG
Rotary 13b turbo w/Mistral Intake
RWS PSRU/EC2/EM2
Dynon SkyView SV-7

Sent from my iPhone 4
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