Drass (company)

Drass, or DRASS,  is an Italian manufacturing company headquartered in Livorno, whose best known for their range of midget submarine and swimmer delivery vehicle. They also have a line of hyperbaric chambers for diver decompression.

History
Drass was founded in 1927 and set the world record for deep diving immersion with an atmospheric diving suit in 1937. Drass has built vessels for both the Italian military and the export market.

After the collapse of Cos.Mo.S in the early 2000s, Drass took over many of its product lines.

SRV-300
The SRV-300 is a deep-submergence rescue vehicle that is rated to dive up to 300 m.

DG-160
The DG-160 is a midget submarine that has a estimated displacement of 169 tons submerged.

DG-550
The DG-550 is a submarine that is dedicated to operations in brown and blue waters.

DG-900
The DG-900 is a submarine that has a estimated displacement of 900 tons submerged.