Originally Posted by
big_G
My Caelus balances out nicely at 9.5 inches (240 mm) from the leading edge. I think the 195 mm number is way too far forward.
The model will fly at the aft CG. Pattern models have large stabs which enable the aft CG. As you begin the trimming, you will possibly find the model will need less pitch mixing for knife flight at the forward CG. You may also find the model to groove better at the forward CG.