I am finishing up my 5th GB ultimate. Between my father and my son and myself I stay busy. Two had YS 120's and two had Saito 120's. The saito combo was the best all round but the YS could easily rocket around. Didn't try 16" props on the ys. This one has a saito 150 (because I had one and the mounting dimensions are the same). Will write back after the first flights. Bare bones with motor, tank and radio is about 71/2 pds.

Jim B.

P. S. Anybody try a yellow aircraft 120 arf with an os 160 in it?