ORIGINAL: jaka
Hi!
Come on guys!
All you need to do is putting your two index fingers (or long fingers) under the wing where the supposed C of G is and notice if the airplane sits level or is ponting forward or tillting backwards. Simple as that!
Don't complicate things that don't need to be complicated.
Not that simple if your fingers aren't long enough or your wife refuses to help you finger-tip it. Besides, that method does not allow for movement of batteries or weight while it is suspended, unless of course you have three long arms.
Bob