‘Experimental With No Oversight:’ Experts Had Concerns About OceanGate Sub for Years

A submersible vessel named Titan used to visit the wreckage site of the Titanic. OceanGate Expeditions via AP

Two engineers behind a 2018 effort to flag concerns about the submersible missing in the North Atlantic say the vessel has not had the design and safety scrutiny typical in their industry.

William Kohnen, president and CEO of the California-based engineering firm Hydrospace Group, says it’s hard to know what went wrong on the Titan submersible because the vessel isn’t classed.