Logbook Scuba Dive # 320 - J4 Submarine
| Logbook Scuba Dive # 320 - J4 Submarine |
Good| Cylinder Set #1 | |||
| Cylinder Type: | Cylinder Size: | Working Pressure: | Supply Type: |
| Steel |  12 litres |
232 bar |  Open Circuit (OC) |
| O2: | He: | Min. PPO2: | Max. PPO2: |
| 21% | 0% | - | 1.4 bar |
 EAN 21 |
MOD: | EAD: | END: |
| 56.6 m | 56.6 m | 56.6 m | |
| Start Pressure: | End Pressure: | Diff. Pressure: | |
| 228 bar | 132 bar | 96 bar | |
| Avg. Depth: | SAC Rate: | ||
| - | - | ||
| Avg. Depth: | SAC Rate: | ||
| 18.29 m | 12.34 litres/min | ||
| Gas Mixture: | |||
| Air (O2=21%) | |||
| Dive Captain: Alan Storen, VSAG Boat: "Raydon", Lloyd Borrett's Haines Hunter V17L, 130HP, Sorrento Boat 1: Greg Richards, Tim Skate, Wayne and their mate. Boat 2: Peter Briggs, Alan Storen and Christine Reynolds. Boat 3: Mark Roche, Denise Rogers, Alex Ivanov and Benita McDonough. Raydon: Lloyd Borrett, Cheryl Lees and John Lawler. First dive from our own dive boat! Cheryl Lees and John Lawler were brave enough to join me as I skippered "Raydon" for the first time out on a dive day. I had recently purchased Dave Kelly's Haines Hunter and whilst the GPS, Side Scanner and other electronic systems I inherited with the boat was just great. But how to use the stuff! Much time was spent trying to call up or identify the location of the sub but it was challenging. Next plan was to put the J4 GPS mark from my GPS into Mark Roche's GPS, which was a fine idea but his crew had some difficulty then calling up the "go to", so JL climbed in and found the right button. All was looking good and it was away all boats. As these things go we didn't need to have worried too much as there was a private boat already anchored on the J4 site. We put down a shot line and deco bar on the site and dive crews geared up for one of the best dives for a long time on this iconic dive wreck. When the time came, Cheryl and I buddied and did our dive. The viz was fantastic and the shot line nicely positioned just on the starboard side of the conning tower. Settling in we followed our dive plan to check out the torpedo tubes. The big school of Bulls Eye fish that seem to live on the J4 greeted us with calm as no doubt the sight of scuba divers in their world is very common. And then a very slow trip through the sub to the stern area and out into the blue water. The reefs to the east looked good in the great viz so a quick look around there was done. Back to the J4 sub for slow check out of holes, nooks and crannies and a clean over of the plaque at the base of the conning tower, remembering the divers who found the J4 sub. This was diving at it's very very best and soon it was time to head up for an imposed decompression stop and back to the boat. As always, the J4 Submarine didn't dissapoint. |
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