We had relief tubes on the C-119's back in the 1950's.
I used them many times. Very handy.
Maby your A&P could install one on a 337.
I just use an old plastic bottle with a large opening and a tight cap.

Al Flora
  ----- Original Message ----- 
  From: kgassert 
  To: [email protected] 
  Sent: Monday, April 06, 2009 4:38 PM
  Subject: [ercoupe-tech] Re: Small tube under fuselage


  I could use one of thoses.

  Kevin1

  --- In [email protected], Syd Cohen <sydl...@...> wrote:
  >
  > Maybe it's a relief tube.
  > 
  > Syd
  > 
  > 
  > 
  > On Apr 6, 2009, at 1:58 PM, Mike Willis wrote:
  > 
  > > Hi folks,
  > >
  > > On the fuselage underside of my Alon A2 just behind the firewall 
  > > there is a small tube sticking out maybe half an inch. Can anyone 
  > > tell me what this does or is for.
  > >
  > > Many thanks,
  > >
  > > Mike
  > >
  > >
  > > m...@...
  > > www.ercoupe.co.uk
  > >
  > > Alon A2 Aircoupe
  > > A-188
  > > G-HARY
  > > -- 
  > >
  > >
  >


  

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