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88" Extra 260/300 CG location

Old 03-06-2017, 02:36 PM
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Default 88" Extra 260/300 CG location

Looking for a manual on this airframe or at least a cg location. Im hoping someone can help me out!

Thanks
Aaron
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Old 03-07-2017, 08:12 AM
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Do you fly 3D, Sport, or IMAC? Usually manuals tends to give 3D settings. This is general statement. For IMAC you want to be around 25%-30% MAC. I got an spreadsheet to estimate the CG if you want to do the estimates.
Old 03-07-2017, 08:50 AM
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This is a airframe I got from a friend with no manual. I just need a CG to get it airborne safely and ill adjust from there. I just don't want it taking off tail heavy and becoming unflyable. I was just going to CG it at the front of the wing tube and hope for the best.
Old 03-07-2017, 09:07 AM
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The problem is that not necesarily the wing tube is the best reference. I would agree that in general could be used.
Old 03-07-2017, 09:16 AM
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The CG calculator says that is close, i just dont have a definite answer as to where it should be. The front of the wing tube is roughly 25-33% of the cord
Old 03-07-2017, 09:40 AM
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OK. Looks like you should be fine using that CG.

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