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Guillows ME 109 C/L Build

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Post  bsadonkill Wed Apr 10, 2024 1:33 pm

Very interested in your build. I built a 400 series Guillow's 109 for .020 free flight. It worked out well. I used the extended wing with the dihedral suggested for the RC model. I want to try the Zero as a control line model. Problem is I don't know much about control line. I see that you moved the bell crank to the bottom of the wing. Is this too make sure the bell crank is under the center of gravity?
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Post  akjgardner Wed Apr 10, 2024 3:32 pm

bsadonkill wrote:Very interested in your build. I built a 400 series Guillow's 109 for .020 free flight. It worked out well. I used the extended wing with the dihedral suggested for the RC model. I want to try the Zero as a control line model. Problem is I don't know much about control line. I see that you moved the bell crank to the bottom of the wing. Is this too make sure the bell crank is under the center of gravity?      
I would like to see a picture of your 109 . The Guillows design has the control line external of the wing . Since I routed the lines through the wing , I had to lower the bell crank
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Post  bsadonkill Thu Apr 11, 2024 4:00 am

A couple of pictures of my free flight Guillow's 109. I was asking about your lowering of the bell crank location because of an article I read. It was a Flying Models magazine article from Dec 1950. It talked about U-Control installation. It said that the bell crank must be behind the balance point. But it also said it must be at or slightly below the center of gravity. I thought maybe you lowered yours for that reason.Guillows ME 109 C/L Build - Page 3 124
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Post  akjgardner Thu Apr 11, 2024 4:14 am

bsadonkill wrote:A couple of pictures of my free flight Guillow's 109. I was asking about your lowering of the bell crank location because of an article I read. It was a Flying Models magazine article from Dec 1950. It talked about U-Control installation. It said that the bell crank must be behind the balance point. But it also said it must be at or slightly below the center of gravity. I thought maybe you lowered yours for that reason.Guillows ME 109 C/L Build - Page 3 124
Guillows ME 109 C/L Build - Page 3 225
Awesome job on your 109
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