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Setting CG without having plans or specs ???

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Setting CG without having plans or specs ???

Old 03-10-2012, 06:31 PM
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Taz_Hobbies
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Default Setting CG without having plans or specs ???

I have one of these...

(have no idea what it is!)

48" span job with a little ASP .46 now on the nose. Would would be a good rule of thumb to get the CG set to?
I seem to remember 33% of the chord back from the leading edge was a good rule of thumb for sport type planes. Would this work on a stunt / 3D type?

Also, set the CG with the tank full, half or empty? What do you guys think?


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Old 03-10-2012, 07:09 PM
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Default RE: Setting CG without having plans or specs ???

if you have a smart phone get the free app CG Calc v2 has a lot of useful info
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Old 03-10-2012, 07:33 PM
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Default RE: Setting CG without having plans or specs ???

look at that wing cord... just fly it ... it's none issue
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Old 03-10-2012, 07:52 PM
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Default RE: Setting CG without having plans or specs ???

Start at 33% of the wing chord measured at the root.
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Old 03-11-2012, 06:11 AM
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Default RE: Setting CG without having plans or specs ???

+1 for 33% to start. Adjust to your liking from there.
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Old 03-11-2012, 08:15 AM
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Default RE: Setting CG without having plans or specs ???

Thank you everyone. I was inclined to use the 33% as a starting point and I thank you for confirming. I appreciate it.
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Old 03-11-2012, 09:07 AM
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Default RE: Setting CG without having plans or specs ???

33% is a good starting point for 3D on any non-swept symmetrical wing.
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