Sentry in Photos

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    Autonomous underwater vehicle (AUV) Sentry prepares to dive during a September 2009 cruise to study natural oil and methane seeps at a site about a mile off the coast of Santa Barbara, Ca.
    (Photo by Christopher Reddy, Woods Hole Oceanographic Institution)
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    Sentry, a new autonomous underwater vehicle (AUV) built by engineers at WHOI, is loaded onto the R/V Tioga for testing operations during December 2007. The free-swimming underwater robot, which is designed to dive as deep as 5,000 meters (3.1 miles), completed its first scientific mission in August 2008, mapping the seafloor off the coast of Washington state. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)
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    WHOI's newest autonomous underwater vehicle, Sentry, is launched from the research vessel Thomas Thompson in August 2008 during the AUV's first scientific expedition. The vehicle surveyed and helped pinpoint several proposed deep-water sites for seafloor instruments that will be deployed in the National Science Foundation’s Ocean Observatories Initiative (OOI). Pictured are WHOI engineers James Kinsey and Andy Billings, both from the Department of Applied Ocean Physics and Engineering. (Photo by Erich Horgan, Woods Hole Oceanographic Institution)
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    Engineer Rod Catanach steadies the Sentry autonomous underwater vehicle as it is lowered for tests off the WHOI dock in November 2007. Sentry is a robot built for exploring the deep ocean; it will often be used to complement Alvin by surveying large swaths of ocean floor to determine the best spots for close-up exploration.
    (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)
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    The autonomous underwater vehicle Sentry is lowered into the North Atlantic for deep-ocean testing during a cruise on the R/V Oceanus in April 2008.
    (Photo by Chris German, Woods Hole Oceanographic Institution)
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    MIT/WHOI Joint Program Student Jordan Stanway tests propellers for the autonomous underwater vehicle (AUV) Sentry.
    (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)
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    WHOI engineers Bob Brown and Tito Collasius (right) check the fit of the yellow outer skin over the lifting eye of the Sentry autonomous underwater vehicle. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)
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    WHOI guest student Don Pfitsch (left), MIT/WHOI graduate student Chris Roman (middle, now an assistant professor at the University of Rhode Island), and summer student fellow Patrick Serfass (in the water) work with a model of the Sentry autonomous underwater vehicle in a test tank. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)
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    WHOI engineers—[left to right] Andy Billings, Griff Outlaw, and Rod Catanach—prepare to test the Sentry autonomous underwater vehicle off of the coastal research vessel Tioga in December 2007.  (Photo by Dana Yoerger, Woods Hole Oceanographic Institution)
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    WHOI researchers secure harness lines and observe a test of the new Sentry autonomous underwater survey vehicle in April 2008, a day before heading out into the North Atlantic for deep-sea trials. From left to right stand engineering assistant Andy Billings, engineer Rod Catanach, chief scientist for the National Deep Submergence Facility Chris German, and engineer Al Duester. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)
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    The new AUV Sentry is lowered into the water for shallow tests off the WHOI dock in late 2005. The vehicle was successfully tested in deep water in April 2006. 
    (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)
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    The new Sentry autonomous underwater vehicle meets the submersible Alvin during a testing expedition off Bermuda in April 2006. (Photo by Chris German, Woods Hole Oceanographic Institution)