REFLECTOR: Good Friday Landing

[Ron Brown]

Dave, I would recommend reinstalling the pumps lower than the CS Spar.

I am using the Air Flow Performance pump and filter - it is located on the floor.  Quality stuff and well made and supported.  

A picture is at http://home.sprintmail.com/~romott/page53.html  A bit tedious getting it all installed there but it fit and works.  Since you have no engine driven pump, I'm guessing you have two Air Flow pumps.  I'd suggest mounting them similar to mine - one on each side on the floor, or on the back of the firewall as low as practical.

And I'm proud you made a safe landing!!!

Ronnie


  ----- Original Message ----- 
  From: Dave Bertram 
  To: reflector at tvbf.org 
  Sent: Wednesday, April 06, 2005 10:54 AM
  Subject: Re: REFLECTOR: Good Friday Landing


        I appreciate all the questions.  My pumps fuel filter and fuel injection are built by Airflow Performance.   The filter and pumps were located in the spar web above the sump.  Either pump delivers 25psi to the manifold with a relief valve after the pumps to return excess fuel to the sump.  Also I was running mogas bought in January.  I do not have a mechanical pump. 

        The main gear has been checked and I am replacing the nose gear swivel pin as a precaution. Dave Bertram

        -------Original Message-------

        From: Velocity Aircraft Owners and Builders list
        Date: 04/06/05 08:36:05
        To: Velocity Aircraft Owners and Builders list
        Subject: Re: REFLECTOR: Good Friday Landing

        Dave Bertram wrote:
        > I have delayed passing this information until I could give a reason for
        > my engine failure.


        Dave, I think you did an excellent job.
        Your experiences are about experimental aviation, and you are farther
        out there in the experimental than most.  It's people like you who are
        advancing the technology for the rest of us.  Thank you.

        Now, for some technology transfer.
        I'm curious about several things.  First, I assume you are fuel
        injected.  What sort of pumps are you running?  I'd assume you couldn't
        run a centrifugal fuel pump.  What's the arrangement of your fuel feed?

        What fuel pressure are you running?

        What sort of fuel pressure regulator are you using?  Do you have a
        return fuel line?  Where does it return the fuel?

        One other question.  How old is your fuel?  I assume you're running
        mogas.  You might have a tank full of winter blended gasoline that has a
        higher vapor pressure for easy winter starting.

        I seem to recall someone here knew how to find out what gasoline formula
        was available in various locations.  Anyone know?
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