I was hoping someone would come forward with a manual. If memory serves me, the plans were not full size. I built one in 1999. I unfortunately do not remember where the CG was but do recall that I laid up a very light weight cowl for it and still had to put the RX battery at the stab leading edge. The 3W 70 twin that I powered it with was a bit on the heavy side though. It was a nice flying airplane. I used it for IMAC so throws were a bit tame, it is not a 3D capable airplane.