Yup, I agree completely. that's why I'm not giving up. I have a Hacker, C50-14XL that I think will work well, might even be over kill, and a AXI 4120, that I think may be marginal. Being Christmas time, I don't think I be buying any other motors for a while. The gearing (6.33/1) may not work so well with a smaller dia prop though. Hummm, back to motocalc