that one in the pic above is a ribeye!!
I built a few rc boats a couple of years ago - one was a rib based on a Shead design class one or something...pics below. the hull was made by graupner... I bought a motor that did about 35,000rpm - the boat did about 30mph - which was about 300mph at scale speed - it lasted about 15mins.
These german guys build probably the best rc scale models in the world: http://www.modellbau-yachten.de/
The Fairline Targa build gallery looks like they spent a very scary amount of time getting them right.