mine with DA-50 2 2400 li-ions and stock everything first flight weighted at 18lb 8oz and it had unlimited vertical,,,

since I have upgraded to CF Wing tube, Stab Tube, Tail Wheel, Kavan main wheels, and CF Spinner and changed from 24oz fuel tank to a 16oz and I saved 2+ oz on the empty fuel tank alone,, Stock Aluminum LG now I'm at 17lb .

a full 24oz tank weight 1 1/2lb and I think the 16oz one is like about 1lb.

Don't change the motor change upgrade to CF everywhere but the LG Stick with aluminum!!!!!