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General control line discussion => Open Forum => Topic started by: Ron Merrill on November 07, 2006, 08:36:08 AM

Title: Primary Force tank
Post by: Ron Merrill on November 07, 2006, 08:36:08 AM

Have a Primary Force and want to use a chicken hopper tank, anyone tried this? Thanks Ron. y1 <= #^

Title: Re: Primary Force tank
Post by: Leonard Rennick on November 07, 2006, 09:13:25 AM

Jim Carpenter has done this. You might do a search in SS for his post on this.


Leonard Rennick

Title: Re: Primary Force tank
Post by: Dennis Moritz on November 07, 2006, 10:21:13 AM

Chicken Hoppers feed to the last drop, keep the engine lit. Problem with them leaning out during the flight, if uniflo is not used. Guess that shouldn't be an issue with uniflo. I've used these tanks a bunch. So far no leaks. The engines I use have not responded well to uniflo, so, I've run muffler pressure to the fill tube (no uniflo). A great sport run, too much rich to lean variance for an excellent stunt run. Solves lots of problematic engine behavior (at least for me) such as leaning out in outside maneuvers and cut-offs when pulling tight loops or jerking the plane around like a jerk.

Title: Re: Primary Force tank
Post by: Larry Lindburg on November 07, 2006, 07:26:49 PM

Hi Ron,  I have an excellent flying  Primary Force with a stock Magnum XL 36A.  Crist Rigotti generously lent/gave me a Fred Krueger-designed chicken-hopper tank that Crist had built.  This tank made a so-so good package into a great one.  From now on I am a firm believer for chicken-hopper tanks on profiles.  If you are interested in making this tank yourself,  I am sure either Fred or Crist would email the construction files.   Larry Lindburg

Title: Re: Primary Force tank
Post by: fred krueger on November 08, 2006, 03:31:01 PM

Ron,

Send me your email address and I'll send you the files in pdf format.

Fred

p.s. here's mine

Title: Re: Primary Force tank
Post by: Alan Hahn on November 08, 2006, 07:10:13 PM

DOn't forget those BOT points!!! y1

Title: Re: Primary Force tank
Post by: Ron Merrill on November 08, 2006, 08:23:24 PM

Fred, e-mail address: amigo50-50@sbcglobal.com. Thank You for everything. Your tank looks good. Ron. AP^

Title: Re: Primary Force tank
Post by: Bob Reeves on November 09, 2006, 03:48:02 AM

The really good thing about Fred's tank verses the GRW is the GRW puts the hopper too far out from the fuselage creating a large difference between fuel head pressure on the ground and in-flight.

Wished Brodak or GRW would start building Fred's tank in a few diferent sizes.

Title: Re: Primary Force tank
Post by: Ron Merrill on November 09, 2006, 09:37:37 AM

    Fred, i couldn't agree more after seeing Fred's drawing. Maybe if enough interest Brodak might consider it????????? Ron.  AP^

Title: Re: Primary Force tank
Post by: Ron Merrill on November 09, 2006, 09:39:38 AM

My bad, i meant Bob. Sorry  '' Ron. AP^