 Four sailors in the bow were drowned, and the weight of water in the flooded forward section caused "Farfadet" to dip and dive straight down, where it became embedded in the mud at the bottom of the harbour.Submarine pioneer John P. Holland wrote in "How To Fly Like a Bird" (1906) that "Farfadet" had moved in such a way as to upset her ballast tank, which in turn submerged an open hatch.A similar fate was suffered by the British A8, which had spun onto its side while trying to avoid a trawler, dipping its conning tower underwater and so flooding itself, "excepting that in ["Farfadet"s] case there occurred a change of speed or inclination that caused the water in her partially filled tank to move to her forward end, thus causing the common centre of gravity of the boat, and the water in its tanks, to move far enough forward to force the forward part of the boat under water.