7/25/18—Mechanical engineer Kaitlyn Tradd attaches a multibeam sonar to the Deep-See, a new sensor platform that she helped design and build. The platform will weigh almost 1.5 tons once fully loaded with its camera systems, sonar arrays, and environmental sensors. Designed to be towed from a ship via an electro-optical cable, the Deep-See will give researchers a new real-time view of life in the ocean twilight zone, hundreds of meters below the surface. The vehicle will have its first sea trials in August 2018, on a cruise to the North Atlantic Ocean led by WHOI acoustics physicist Andone Lavery and NOAA fishery biologist Michael Jech.