Perhaps Boeing is most known as an aeronautics giant, producing commercial jetliners and defense, space and security systems. However, Boeing has been designing and operating manned and unmanned deep sea systems since the 1960s, including a hydrofoils - an experimental submarine hunter called the USS High Point (PCH-1).

Echo Voyager is Boeing's latest unmanned undersea vehicle (UUV) in the brand's UUV family (joining the 32-foot Echo Seeker and the 18-foot Echo Ranger). The autonomous submarine is 51 feet long and can be (unlike other UUVs) launched and recovered without the support of a surface support ship and crew, thus eliminating all associated costs. It can automatically rise to the surface whenever needed and transmit gathered data via a folding antenna. 

What makes it different from other UUVs is also the fact that it can operate autonomously for months at a time due to a hybrid rechargeable power system and modular payload bay.