ORIGINAL: pyro1
I have the mag 57 (similar to the Manta Ray). I raised the tabs all the way up ,set the drive to +2deg and moved the tank up against the pull start running a 2 blade 75mm prop. Runs around 42mph.
That's pretty good. What engine do you have?
What kind of wind / water conditions? I would think it have to be pretty calm to prevent blowover.
Robbie