Subject matches "HOV Alvin - Alvin upgrade vehicle - DSV-2" or its children

Adam Soule and Mark Kurz boarding HOV Alvin for dive 4818.

Swimmers tending to Alvin at surface for recovery operations.

R/V Atlantis at the surface as viewed below.

Swimmers tending to Alvin at surface for recovery operations.

Swimmers tending to Alvin at surface for recovery operations.

Alvin Dive 5,000 USPS postmark stamp.

Dr. Walter Munk getting a personal tour of R/V Atlantis and HOV Alvin.

Todd Litke and Danik Forsman preparing HOV Alvin for a dive.

Alvin techs perform an early hours checklist on Alvin on dive days.

HOV Alvin full front view inside R/V Atlantis hangar.

Chawalit "Net" Charoenpong boarding HOV Alvin for his first dive.

HOV Alvin at the surface with a swimmer nearby tending to it.

Bruce Strickrott and another swimmer tending to HOV Alvin underwater.

HOV Alvin is positioned onto 4x4s on the floor of the high bay to finalize the move.

Cara Santelli retrieving a rock specimen from Alvn's sample basket after a dive.

Drew Bewley performing Alvin hardware systems check inside the sub's "bird cage".

Lane Abrams working on the Alvin personnel sphere bird cage.

Anna Michel on board R/V Atlantis with HOV Alvin.

HOV Alvin recovery operations to R/V Atlantis after 3,500-meter dive.

Alvin in dive position on the fantail of R/V Atlantis.