I am a 1st timer on float planes. I am converting the trainer that I started with several years ago. It is a Thunder Tiger 40 and I am placing a set of 33!QUOT! Gee Bee floats on it. The wing span is 61!QUOT! and weight is approx 5 1/2 - 6 lbs with the floats on and fueled up. What I need to know is which engine should I use. The plane came with a TT GP 42. On land this engine flew well and I had pretty good performance. I also have a TT Pro 46 that I can put on it. Several more experience flyer's (but not float flyer's) suggest I go to a larger engine.

Also, what is the best way to seal my battery and receiver from any water that might get inside. 1 idea that I thought of was to seal it in a zip-lock bag and use silicone where the leads come out. - Any suggestions.