I took what I leaned about Inca and Maya sea raft construction and theorized that ancient seafarers used advanced super speed pontoon and raft shapes for their vessels because of superior handling in seas.
In Second Sight, Levi and Aaron commadeer an Atlantean high speed submersable sea raft to spirit Jordan and the other civilians to safety.
Looks like the NAVY is catching up to what may have been the ancient past:
http://www.julietmarine.com/pdfs/GHOST_watercraftV4_sm.pdf