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Old Feb 07, 2013, 01:53 PM
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I like real wooden aeroplanes!
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South-west France
Joined Sep 2007
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Based on experience rather than calculation, I would normally expect to be using in the region of 2.5" under each tip for a 44" rudder/elevator model. HOWEVER, as the EP9 has a pod and boom fuselage with a lot of side area concentrated at the front I think you might well get away with a bit less - say 1.75" to 2". Being a scale model of an aircraft which doesn't have much you won't want to spoil the looks by using more than you need, so the adjustable struts will be handy, you could start off with 2.5" which should certainly be safe and reduce it a bit at a time once you get the model otherwise trimmed.
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