Hey there Radar-RCU,

I understand what you are doing with the weight and balance numbers, to get 26 oz's in the tail though I think you have mixed up your moments some how.

PS: I am an aircraft engineer and while lifting the model by it's wing tip works. It's a little tougher with a 60, 000 lb jet:0)

I have used this method a few times to calulate modifications to the airplane. Works out to the letter if you do the math corrrectly.

Take Care for now,

Riverdancer