There's a fair variance in the weight of the airframe itself from one kit to another too. I have two of them, set up virtually identical, one weighs 27.5lbs, the other weighs over 2lbs more. They both fly really well but, I can definately "feel" the weight difference of the lighter one. By comparison, the Skymaster large Hawk is just a "hair" bigger and it's a good 10lbs heavier.

Mike