• Echo Voyager, Boeing’s latest unmanned, undersea vehicle (UUV), can operate autonomously for months at a time thanks to a hybrid rechargeable propulsion power system and modular payload bay. Credit: Boeing
    Echo Voyager, Boeing’s latest unmanned, undersea vehicle (UUV), can operate autonomously for months at a time thanks to a hybrid rechargeable propulsion power system and modular payload bay. Credit: Boeing
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