Hi Duane,

If you ask 10 different people you are going to get 10 different answers on the subject. It has a lot to do with budget when it comes to boats. Some people like the cheap stuff whereas others are into quality. I personally believe that if you get the cheap stuff you are going to replace it sooner than later.... Also you don't wan't to wave goodbye to your boat because some cheap but critical component failed far offshore...but that's just one opinion..

A 50" sportfisher should have the ability to plane therefore you would want powerful motors that will be in the 10,000RPM range. Because the boat is scale the ESC should have reversing capabilities but you will a difficult time doing this if the motors are gas/glo etc. I would go electric and save the hassle.

If I was going to run a 50" sportfisher this is what I would do:

(2) Astroflight 25's or 40's. electric motors

(2) MACK marine stuffing tubes/shafts 18-24"

(2) Mack marine rudders

(1-2) astroflight or any decent reversing ESC's depending if you want independant throttles..

(2) 3 blade 1.75" props to run the motors direct

(2) 12V batteries NIMH 5000MAH or greater

Radio with receiver (I like the Robbe F-14 marine but Futaba or Hitec are good too. As long as it has good range choice is yours....

Then little stuff like:

Watercooling accesories and motor-shaft couplers.

I hope this gives you ideas.

A while back there were some guys that were talking about the Dumas Donzi Z 65 that is 49". Here was there take on the subject:

www.rcuniverse.com/forum/m_8797788/anchors_8798429/mpage_1/key_/anchor/tm.htm

Good luck and post pics.

-Rich.