Don't clog your nipple !

[Paul Taylor]

So when I was at the flying field yesterday to put up the maiden flight on the Akrobat, I could not get any fuel in the tank. It was like something was blocked. So I pulled the tank at the field, Jim Lynch was on hand and checked the tank said the tank was fine. It had to be something else. I was not a happy camper having to take things apart at the field. So I just set it aside until I could get it home to work on it. Late last night it was just bugging me, so back on the build table the Akrobat went and I started all over on the tank and plumbing. After about 45 minutes I found my clogged nipple.

I was needing to save some nose weight on the Akrobat. I remembered reading in Control Line World how Dee Rice cut the stack off a tube muffler and made a tongue muffler.
So that is what I did, and I even took out the pressure nipple out of the old muffler and installed it in the new tongue muffler. I put a dab of JB weld on the inside of the nipple and in the process I blocked the end by mistake.

Akrobat still waiting on that maiden flight.

[Jim Treace]

Paul,
Leave it closed...fly uniflow    That is why I don't mess with pressure, plus I believe that junk can get into your tank from the pressure line. Maybe I am over cautious.
Jim

[Wynn Robins]

ohhh Paul - and I took my new model out on Sunday and hit a switch and it just flew.......and you still hassle me about electrics HA HA

Stick to muffler pressure on the LA tho - they LOVE IT

[Paul Taylor]

ohhh Paul - and I took my new model out on Sunday and hit a switch and it just flew.......and you still hassle me about electrics HA HA

Stick to muffler pressure on the LA tho - they LOVE IT

Hey Wynn,
I have to rag you about something. You build some nice planes.

[Jim Thomerson]

It was irritating to go out for that first flight and realize, after a while, that I soldered the end of the fuel pick up shut. 

[john e. holliday]

That happens to all of us, truth be known.  My son and I went up to the local school yard to put up a couple of flights.  The engine would start easily but, after launch would quit after about 6 or 7 laps.  I replaced the go plug with no help.  Checked tank for leaks.  Cleaned needle valve and fluel filter.  Finally the boy told me to fly while he started the engine.  Second attempt with him starting it took a while and I couldn't see what he was doing.  Flew the tank dry.  He had replaced the fuel line using the line on the fueler.  Seems the old line was split but didn't leak until airborne.  But, what is really bad is to find out that the needle valve is still laying on the work bench back home. 

[Gene O'Keefe]

FWIW, I have flown my LA's on suction and pressure and for me they run "MUCH" better on pressure.

  Geno