REFLECTOR: Uneven fuel draw

[Lynn Gallup]

I had very uneven fuel flow, so uneven, in fact, that one tank or the other would drain about 3/8 down before the other tank would even start to flow. I traced this to the mini-naca "scoop" on the bottom of airplane acting like a venturi and putting suction on the tanks through the vent line. I laid up a tiny traditionally shaped airscoop, sticking up just 1/4 inch above the fusilage surface, and glued it on over the naca scoop. With my now "pressurized" tanks I have not had even the slightest indication of uneven flow ever since.
Lynn
  ----- Original Message ----- 
  From: PVTPIL8 at aol.com 
  To: reflector at tvbf.org 
  Sent: Thursday, October 28, 2004 11:43 AM
  Subject: REFLECTOR: Uneven fuel draw


  I am having a very uneven fuel draw in my XL.  My right tank draws substantially faster than my left.  I understand others have had this problem.  I can transfer fuel with pumps.  I would like to know if anyone has been able to do something to get the fuel to draw more evenly?
  Steve
  XL-RG
  N787SB 


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