Dennis
Thank you for the nice comments on the build. I'm installing a P60 ( 13.5 lbs ) at first to see how it flys with but I have a feeling that the best trust will come from a Kintech K80 ( 19 lbs ) both engines burn 8 oz. a minute, the fuel tan is a 100 oz one, that is enough to fly for 12 minutes at max rpms which we hardly ever do during a flight, oh, one big difference between the two is that the K80 weights o e more pound.

I'm estimating a 18-19 lbs dry weight and a 23-24 lbs ready to fly.