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Control surface movements

Rudder elevator only glider

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Stephen Belshaw01/01/2019 11:40:20
72 forum posts
14 photos

I'm close to finishing a Sonata glider from the Cliff Goater Balsa Cabin kit, it's a long time since I flew a rudder/elevator model and nowhere on the plan or instructions does it mention control throws.

Anyone able to offer suggestions for this model?

simon barr01/01/2019 12:30:42
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1019 forum posts
11 photos

Hello Stephen and Happy New Year.

A rudder/elevator glider is going to be pretty docile, so I would suggest starting out with around half inch up and down on the elevator, and around one and a half inches either way on the rudder.

Hope this helps.

J D 801/01/2019 13:31:13
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1000 forum posts
59 photos

And I second Simon's post. Is it just a glider or will it be a power glider ?

Stephen Belshaw01/01/2019 13:51:58
72 forum posts
14 photos

Hello Simon, many thanks for the prompt reply and a Happy New Year to you too! I'll set as you suggest and see how she goes.

J D 8, I am building the Sonata as a pure glider and not the electric version, hopefully should be a real floater for fying off my old school bungee or small slopes. Relaxed summer evening thermalling sessions beckon!

John Duncker01/01/2019 15:04:12
64 forum posts
7 photos

I had a Flair SUnrise which I flew a fair amount in light thermal conditions. I found it beneficial to have a fair amount of expo on the rudder and some on the elevator to make it easy to fly it smoothly while thremalling but still have enough movement when it was needed. to get it down at the end of the slot

Stephen Belshaw01/01/2019 15:11:23
72 forum posts
14 photos
Posted by John Duncker on 01/01/2019 15:04:12:

I had a Flair SUnrise which I flew a fair amount in light thermal conditions. I found it beneficial to have a fair amount of expo on the rudder and some on the elevator to make it easy to fly it smoothly while thremalling but still have enough movement when it was needed. to get it down at the end of the slot

Thanks John, good tip and duly noted.

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