237 Underwater sound laboratory, filmed by US Navy, Alvin and Lulu prep for dive

0:01 title card: "U.S. Navy Underwater Sound Laboratory" w/ logo. 0:07 title card: "photographed by U.S. Navy Underwater Sound Laboratory Field Photographic Unit". 0:15 Lulu at sea. 0:31 unidentified person and telescope. 1:07 Lulu at sea, including views of other vessel and oil rig in background. 4:58 Alvin on deck of Lulu. 5:10 person working underneath Alvin. 5:22 loading tank into Alvin. 5:41 Alvin on deck of Lulu. 6:14 scenes of people performing maintenance on Alvin. 6:48 Alvin's camera and lights. 8:51 people on deck of Lulu. 9:26 oil tower and other vessel. 9:43 George Broderson with cables. 9:55 people near Alvin. 10:05 small boat in water. 10:15 divers climb on to Alvin. 11:00 Alvin lowered into water. 11:29 Alvin in water, shots of crew untying Alvin. 13:08 Alvin and divers in water with small boat nearby. 15:25 person with headphones and microphone. 15:34 shots of crew working. 16:04 Alvin platform. 16:20 Alvin and small boat in water. 17:05 Alvin dives. 17:41 people on Lulu deck getting in small boat. 18:21 people on deck of Lulu. 18:35 small boat. 18:48 pulling equipment out of the water. 19:05 Alvin surfaces near small boat. 19:23 empty platform lowers into water. 20:05 crew standing on pontoon. 20:13 Alvin and small boat approaching Lulu, divers in water, tying lines to Alvin. 21:45 Alvin pulled toward Lulu with ropes. 22:58 platform raises Alvin. 23:05 Alvin on deck of Lulu. 23:15 person exiting Alvin, crew nearby. 24:08 tow vessel and oil rig. The runtime for this video is 24m 49.