I have only done serious testing with this hull as a quad engine set up in my full carbon hull.
124 kph or 77.5 mph has been its top speed so far (12th July 2009) with 4 stock Zenoah G260 engines. This is one of the fastest, if not the fastest
piston powered large R/C catamarans in the world today.
A single engine in one of these hulls would be capable of speeds between 60 to 70 kph and the pink twin pictured has reached 86 kph with left and right rotation RCMK side exhaust engines.