RE: 1/3 scale hydroplane Miss budweiser
That boat has been all over hte country. The last time that I saw anything of it it was sitting in Texas if that's the same one but that was many years ago.
There was another version built that was a little larger and was featured in RCBM when it was shown at the Toledo show. That one had a 300cc Kaw in it but didn't use the jet drive but a regular prop. That person had some monster servos set up redundantly for safety. It seems like he used some servos from the military what from who and what I don't know.
Yes, there are some servos on the market that put out 330 oz. in. of torque so those could be ganged but I don't know how many that you'd need to steer that beast. The linkage might be tricky also not to mention some long servo arms to get the amount of steering that it would need.