How police use a ‘total containment vessel’ to haul away explosive devices


A little-known device used by police to haul away the explosive material called a “total containment vessel,” or TCV.

The TCV is designed to absorb the blast from a bomb. It’s been described as “an inside-out diving vessel.” In 2016, after a pressure-cooker bomb went off in Manhattan, police gave reporters a tour of the high-tech device.

“Instead of keeping the pressure out and keeping you alive in five fathoms of water, it keeps the pressure in,” [Lt. Mark Torre, the commanding officer of the NYPD’s bomb squad] explained. Should a bomb explode inside, tiny vents allow pressure to escape. “It sounds like a hammer hitting a piece of steel,” he said.

The NYPD has three TCVs located throughout the five boroughs to be deployed at a moment’s notice, counterterrorism Chief James Waters told the Daily News in 2016. Inside the chamber is a “basket” where the explosive rests to prevent explosion-triggering turbulence during the drive.

Such vessels are often capable of containing a blast of 25 pounds of TNT or more, and they are increasingly a common piece of equipment for police agencies across the country.

 

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Source: The Verge.