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General control line discussion => Open Forum => Topic started by: Garf on November 26, 2006, 10:14:36 PM

Title: Fuel Tank Problem
Post by: Garf on November 26, 2006, 10:14:36 PM
I am having a problem with the tanks on my Tutor 2 ARF. The original plastic clunk tank was so bad, it destroyed an engine with a 10 lap dead lean run at the end of the flight. My own Garf steel clunk tank gives me about 2 laps of a sagging run at the end. What does it take to give a clean cutoff? would muffler pressure help?

      "SAVE ALL THE PIECES"-Phil Brown
Title: Re: Fuel Tank Problem
Post by: fred krueger on November 27, 2006, 08:12:07 AM
Phil,

Try a low profile chicken hopper tank.  Email me or Crist Rigotti for plans.

Here's a previous thread:

http://stunthanger.com/smf/index.php?topic=2565.0

Fred
Title: Re: Fuel Tank Problem
Post by: Bob Reeves on November 27, 2006, 09:13:04 AM
Cock the rear of the tank out about 1/8 inch. I started doing this on all my airplanes and have a couple profiles with scary clean cutoffs. No warning at all they just quit like someone turned off the switch.
Title: Re: Fuel Tank Problem
Post by: Wynn Robins on November 27, 2006, 09:46:10 PM
what motor?
Title: Re: Fuel Tank Problem
Post by: Garf on November 27, 2006, 10:29:20 PM
what motor?
ST G21 .46, TF Tutor 2 ARF
Title: Re: Fuel Tank Problem
Post by: Ron King on November 28, 2006, 06:11:51 AM
Cock the rear of the tank out about 1/8 inch. I started doing this on all my airplanes and have a couple profiles with scary clean cutoffs. No warning at all they just quit like someone turned off the switch.

Agreed. I was also having cut out problems in the clover and a friend mentioned this trick. Two popsicle sticks tucked under the back edge of the tank worked wonders.  y1

I now build in a "ramp" for my tanks on profile fuselages. The front is recessed 1/4" and my engines fly fine.

I use GRW uniflow tanks, with no pressure - and I do get a lap or two warning, but no stutters.

Ron