International and marine engineering teams at Advanced Yacht Technologies to create the Bertram 800. True ... as Bertram’s factory captain started the engines. The 800 is very quiet, thanks to the buffer of crew’s quarters aft of the engine room and the underwater exhaust. As we’ve seen, though, quiet doesn ...

: Those steep sections consume horsepower. (Twin big-block gas engines suit her, as do modern lightweight ... . It was at this juncture that Bertram's engineer, Lee Dana, and designer, Dave Napier, crafted a 54-foot design that would ... that is bolted securely to the main stringers and positioned aft of the engines in the machinery space. Unlike ...