Wheelhouse Tour Deputy Defense Secretary Bob Work tours the wheelhouse before a Defense Advanced Research Projects Agency christening ceremony for a technology demonstration vessel designed, developed and built through DARPA’s anti-submarine warfare continuous trail unmanned vessel program in Portland, Ore., April 7, 2016. DoD photo by Army Sgt. 1st Class Clydell Kinchen SHARE: Download: Full Size (1.77 MB) Credit: Sgt. 1st Class Clydell Kinchen VIRIN: 160407-D-LN567-005A.JPG Photo Gallery