Trimming the Profile- How-to

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PostPosted: Mon Jan 05, 2009 5:11 pm

I see what you're saying now, thanks.
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PostPosted: Mon Jan 05, 2009 5:38 pm

My hinges get stressed by the ground.
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PostPosted: Mon Jan 05, 2009 7:01 pm

Are you saying if the distance from the ctr of the servo arm to the lets say furthest hole on the arm is equal to the distance from the control surface to the hole in the horn you don't lose any torque using the furthest hole in the arm? Whew that was a long one.
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PostPosted: Mon Jan 05, 2009 8:14 pm

That sounds right to me.
There is not mechanical advantage or disadvantage.
I always thought that you wanted both distances as equal as possible in our world.
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PostPosted: Mon Jan 05, 2009 9:03 pm

I did well in math, geometry and physics, barely passed English. I'll try a different approach on the explanation. This is comparing two 1:1 setups.

Image

The top setup will put less stress on the hinge line than the bottom setup.
The control surfaces will move the same amount and to relatively the same angle as the servo moves.
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PostPosted: Mon Jan 05, 2009 9:13 pm

Good pic and very true.. ALSO the best part is the top pic will have much less slop from clevis holes and or loose ball links than the bottom one also put less load on the pushrod, which will make them less likely to bend.. servo slop will be the same though
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PostPosted: Mon Jan 05, 2009 9:14 pm

Very well illustrated. :tu:
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PostPosted: Mon Jan 05, 2009 9:45 pm

this is my typical linkage
Image
does this mean i'm greedy?
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PostPosted: Mon Jan 05, 2009 9:47 pm

Nice rework.
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PostPosted: Tue Nov 17, 2009 10:10 pm

What about the question Boss351 had about the fuel tank. When all of this attention is given to the CG and all the other balacing, what is the affect on the plane when you add 18oz of fuel. Should you balance with half of tank of fuel?
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PostPosted: Tue Nov 17, 2009 10:11 pm

By the great post.
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Re: Trimming the Profile- How-to

PostPosted: Mon Mar 29, 2021 11:22 pm

A very nice read,and some of you were there,that is,bros at the time.
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Re: Trimming the Profile- How-to

PostPosted: Tue Mar 30, 2021 11:55 am

I need to add,page 1,first post,good read for new guys,or guys like me that forget.
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