Return-Path: Received: from [129.116.87.170] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 4.3c1) with ESMTP id 741265 for flyrotary@lancaironline.net; Wed, 16 Feb 2005 08:33:44 -0500 Received-SPF: none receiver=logan.com; client-ip=129.116.87.170; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C5142C.07B4B537" Subject: RE: [FlyRotary] Re: Bad day at the airport Date: Wed, 16 Feb 2005 07:32:59 -0600 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69EC07F64@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Bad day at the airport Thread-Index: AcUT1KCf571SpePpRkGeG6aOGB1FnQAVyK/Q From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C5142C.07B4B537 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Paul, No big deal. I'm happy to be able to give it to someone that can use it. You can repay me with a ride in your SQ2000 (once you get the kinks in the fuel system worked out). =20 Mark S. (still looking for the video) =20 =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul Sent: Tuesday, February 15, 2005 9:06 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Bad day at the airport =20 Hi, Mark....yes, the brochure arrived today. Thank you so much for finding and sending it. I would be pleased to reimburse you for your time and shipping. Please advise off line, and I'll be happy to reimburse you. There was a lot of info in there that I was not aware of. Lots of fun looking at it. Thanks again. Paul Conner =20 ----- Original Message -----=20 From: Mark R Steitle =20 To: Rotary motors in aircraft =20 Sent: Tuesday, February 15, 2005 7:41 AM Subject: [FlyRotary] Re: Bad day at the airport =20 Paul, That's good to hear. BTW, did you get the brochure on the SQ2000? =20 =20 Mark S. (still looking for the video) Do not archive =09 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul Sent: Tuesday, February 15, 2005 6:41 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Bad day at the airport =20 Hi, Mark....that seems to be the general consensus, and I agree that it is the most likely cause of the fuel starvation. I ran the aircraft several times yesterday, and it still ran as smooth as ever. I tried a couple of aborted takeoffs, and it still ran great. Good acceleration, nosewheel off the ground by 1200 feet. Unfortunately, until I vent the sump tank and install firesleeving on my fuel lines, the nosewheel is the only part of the plane that is going to leave the ground. Will keep you posted. Thanks again for your input. Paul Conner, off to the welder ----- Original Message -----=20 From: Mark R Steitle =20 To: Rotary motors in aircraft =20 Sent: Monday, February 14, 2005 10:09 AM Subject: [FlyRotary] Re: Bad day at the airport =20 =20 Paul, It looks like the group has focused in on the fuel system, or more specifically the sump tank as the likely culprit. I suspected you might have been running mogas. Its my understanding that auto fuel has a much lower vapor pressure than avgas and is therefore more likely to vapor lock. =20 =20 Just a SWAG, but I think the engine and related systems got hot enough to heat the fuel in the fuel rails so that once it passed the pressure regulator (pressure drop) it started to boil, similar to when you open a hot soda. With the return fuel going to an unvented tank, the boiling fuel expanded enough to cause pressure in the header tank so as to prevent fresh fuel from flowing into the tank. Eventually, the header tank ran dry and the engine quit. You sure handled the situation like a pro. Hope I never have to face that scenario. =20 Mark S.=20 =20 =20 =20 Hi, Mark...my humblest appologies for taking so long to respond. I am whittling down the 200 plus messages in my inbox. I was using auto fuel (regular). I have a fuel return line and it goes to the top of my aluminum sump tank that is located on the cool side of the firewall (inside the cabin, behind the rear seat). The return line is -8 in size. Hope this helps. Paul Conner =09 ________________________________ No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 2/10/2005 =09 ________________________________ No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 2/10/2005 ------_=_NextPart_001_01C5142C.07B4B537 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Paul,

No big deal.  I’m happy = to be able to give it to someone that can use it.  You can repay me with a = ride in your SQ2000 (once you get the kinks in the fuel system worked = out).

 

Mark = S.

(still looking for the video)  =

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul
Sent: Tuesday, February = 15, 2005 9:06 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Bad day at the airport

 

Hi, Mark....yes, the brochure arrived today.  = Thank you so much for finding and sending it. I would be pleased to reimburse you = for your time and shipping. Please advise off line, and I'll be happy to = reimburse you.  There was a lot of info in there that I was not aware of. = Lots of fun looking at it.  Thanks again.  Paul = Conner

 

----- Original Message ----- =

From: Mark R Steitle =

Sent: = Tuesday, February 15, 2005 7:41 AM

Subject: = [FlyRotary] Re: Bad day at the airport

 

Paul,

That’s good to hear.  = BTW, did you get the brochure on the SQ2000? 

 

Mark = S.

(still looking for the = video)

Do not = archive

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Paul
Sent: Tuesday, February = 15, 2005 6:41 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Bad day at the airport

 

Hi, Mark....that seems to be the general consensus, = and I agree that it is the most likely cause of the fuel starvation.  I = ran the aircraft several times yesterday, and it still ran as smooth as = ever.  I tried a couple of aborted takeoffs, and it still ran great. Good = acceleration, nosewheel off the ground by 1200 feet.  Unfortunately, until I vent = the sump tank and install firesleeving on my fuel lines, the nosewheel is = the only part of the plane that is going to leave the ground.  Will keep you posted.  Thanks again for your input.  Paul Conner, off to the = welder

----- Original Message ----- =

From: Mark R Steitle =

Sent: Monday, = February 14, 2005 10:09 AM

Subject: = [FlyRotary] Re: Bad day at the airport

 

 

Paul,

It looks like the group has focused = in on the fuel system, or more specifically the sump tank as the likely = culprit.  I suspected you might have been running mogas.  Its my = understanding that auto fuel has a much lower vapor pressure than avgas and is = therefore more likely to vapor lock. 

 

Just a SWAG, but I think the engine = and related systems got hot enough to heat the fuel in the fuel rails so = that once it passed the pressure regulator (pressure drop) it started to boil, = similar to when you open a hot soda.  With the return fuel going to an = unvented tank, the boiling fuel expanded enough to cause pressure in the header tank so = as to prevent fresh fuel from flowing into the tank.  Eventually, the = header tank ran dry and the engine quit.  You sure handled the situation = like a pro.  Hope I never have to face that = scenario.

 

Mark S. =

 

  =

 

Hi, Mark...my humblest appologies for taking so long = to respond.  I am whittling down the 200 plus messages in my = inbox.  I was using auto fuel (regular). I have a fuel return line and it goes to = the top of my aluminum sump tank that is located on the cool side of the = firewall (inside the cabin, behind the rear seat). The return line is -8 in = size.  Hope this helps.  Paul Conner

No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: = 2/10/2005

No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: = 2/10/2005

------_=_NextPart_001_01C5142C.07B4B537--