Balancing A Low Wing - RCCanada - Canada Radio Controlled Hobby Forum
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Old 08-06-2013, 06:10 PM   #1
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Balancing A Low Wing

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I am balancing a 4*60 and I just want to make sure I am doing it right. I balanced it upside down so the nose is a bit down, just like I have balanced high wing. The question I have is when I flip the plane the proper way up and I check balance it is very nose heavy. Is this the way it should be?
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Old 08-06-2013, 07:31 PM   #2
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Re: Balancing A Low Wing

Since the vertical COG is above where you are balancing it when right side up I am pretty sure it will show you an incorrect balance. The weight is trying to get below where you are supporting it and it goes farther.

I balance all low wings upside down and they fly fine.
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Old 08-06-2013, 08:07 PM   #3
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Re: Balancing A Low Wing

I agree, it will be fine. When trying to balance upright, you have the entire weight of the plane above your balance point. A slight nose heavy will start the tip forward and top heavy nature accentuates the nose heavy condition.
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Old 08-07-2013, 07:33 PM   #4
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Re: Balancing A Low Wing

When you balance it upright the aircraft will flop back and forth making it hard to determine the C of G. When you balance it inverted the horizontal stab should be exactly level. For a standard sport plane with a sport airfoil, 25% to 35% of the airfoil cord is good. I tried to attach a C of G Calculator but it would not take. PM me your email address and I will send it to you

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