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Building Tips and technical articles. => ARF'S => Topic started by: Joe Rice on March 02, 2010, 05:53:01 AM

Title: Tank Size For OS LA 25
Post by: Joe Rice on March 02, 2010, 05:53:01 AM

 I have a Super Clown close to finish that will have OS LA 25 power.  I have 2 1/2 ounce and 3 ounce GRW wedge tanks.  Which size would be best for the OS 25.  HB~> HB~> HB~>

Joe

Title: Re: Tank Size For OS LA 25
Post by: Brett Buck on March 02, 2010, 06:08:55 AM

Quote from: Joe Rice on March 02, 2010, 05:53:01 AM

I have a Super Clown close to finish that will have OS LA 25 power.  I have 2 1/2 ounce and 3 ounce GRW wedge tanks.  Which size would be best for the OS 25. 

     Either will give you enough fuel for a full pattern on a broken-in engine, presuming the usual setup. You probably won't make it through the full pattern on 2 1/2 for the first few runs.

    But I would be a little concerned that they are too wide. How far is it from the peak of the wedge to the "base" (i.e the part that goes up against the fuselage). The wider it is, the further "uphill" it has to suck the fuel.

     Brett

Title: Re: Tank Size For OS LA 25
Post by: Joe Rice on March 02, 2010, 06:31:25 AM

Brett...the 2.5 ounce tank is 2" wide (peak of wedge to fuse), 2" long and 1.5" tall.  Her is a pic.

 

Title: Re: Tank Size For OS LA 25
Post by: Douglas Ames on March 08, 2010, 10:45:20 PM

I like your model holder...I assume it's clamped in a vise. Gotta get me one of those built.

Title: Re: Tank Size For OS LA 25
Post by: Joe Rice on March 10, 2010, 06:47:15 PM

Quote from: Douglas Ames on March 08, 2010, 10:45:20 PM

I like your model holder...I assume it's clamped in a vise. Gotta get me one of those built.

Yup...it is a painting fixture.  A piece of dowel that rotates in section of plastic PVC pipe clamped in a workmate, or vise. 

Joe