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 =

To: Rotary motors in aircraft

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

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