Image of the Day

153 / 365

Loading iron plates onto Alvin

Weighty Subject

WHOI technicians Rick Sanger (left) and Phil Santos load iron plates onto the research submersible Alvin before a dive. The plates help Alvin descend through the water to the seafloor and stay there without expending a lot of battery power. When Alvin is ready to return to the surface, the pilot jettisons the plates, making the sub light enough to surface. The red flag by Sanger’s left hand is one of six attached to pins that block the plates’ release triggers. They prevent accidental release of plates (and possible smashed toes) while the vehicle is on the ship. The flags are removed before launch. (Photo by Chris Linder, Woods Hole Oceanographic Institution)


Image and Visual Licensing

Text, images, graphics and other material contained on this website are subject to copyright. For more information or to license material, please contact the Director of Digital Assets, or (508) 289-2647.

Explore Visual WHOI

Search multimedia database

License our Visuals