As you may have read from the entire post, the finished product will come out around 7 pounds, a .50 two stroke would be an excellent choice for an engine, but a new BB .46 would be adequate. You could lighten the plane up using mini, high torque servos and a Lithium battery pack. A magnum .52, OS .50SX would be good choices in the 2S category. The Saito .91 would be my choice for a 4 stroke.

I am still waiting on a friend to cut out some foam floats for me to set up on mine. I installed a Magnum .91 4S on mine, as you may have noted in our thread. That is a very heavy engine, so I ended up with battery and servos in the tail, the CG is now 97mm and the plane flies great. With floats, the plane is going to be over 8 pounds, so we will have to see how the higher wing loading effects it flight characteristics.

Once I get the floats on, I will try to remember to post some pictures. Sure hope I get them soon, it has rained so much in Central Texas lately, that our main favorite field has been under water most of the time, so floats would be nice, so we could fly off our flooded runway.

Good luck with your SD,
Mike Boyd