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Logbook Scuba Dive # 100 - J1 Submarine

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Logbook Scuba Dive # 100 - J1 Submarine
Date: Entry Time: Dive Time: Max. Depth:
Wed, 25-Apr-2007 10:59:00 28 minutes 33.2 metres
Dive Location: City / Island:
J1 Submarine The Heads, Bass Strait, VIC
Country: Dive Master:
Australia Michael Kakafikas
Dive Club: Dive Trip:
Victorian Sub-Aqua Group (VSAG) -
Bridey Leggatt, Michael Kakafikas
Dive Details:
Entry: Boat Name:  
Boat Miles Ahead  
Start PG: Entry Time: Exit Time: End PG:
A 10:59:00 11:27:00 -
Altitude: Rep. Dive: Surface Interval:  
0 m No -  
Max. Depth:     Avg. Depth:
33.2 metres     20.69  m
  Dive Time: Deco. Dive:
  28 minutes No
Weather: Air Temp.: Water Temp.:  
Clear 23 °C 19 °C  
Water: Waves: Current:  
Salt No Waves Light Current  
Visibility: Horizontal Vis.: Vertical Vis.:
Good Good - -  
Weight: Dive Suit: Dive Computer:
16 kg Wetsuit 7 mm Suunto Vytec DS
Equipment used on this dive:
Apeks ATX100 Regulator | Apeks ATX40 Octopus | Apollo Bio-Fin Pro | Apollo Ecodiver Dive Boots | Buddy Surface Marker Buoy | DUI Weight & Trim 2 Harness | Faber 15L Steel Cylinder | Neptune Scorpion Gold 7mm SemiDry Wetsuit | Northern Diver Mini Metal Wreck Reel | Northern Diver Superstretch 2mm Neoprene Gloves | Ocean Suits 3mm Hood | Oceanic Spinner Pointed Dive Knife | OMS Compact Quick Dump Weight Pockets | OMS Dual Bladder, Banded Wing - Rec | OMS IQ Pack BC Harness | Princeton Tec Impact XL Dive Light | Sonar Explorer Blue Silicone Mask | Suunto CB-Two-In-Line Combo Console - 1 | Suunto SK-7 Compass Wrist - 1 | Suunto Vytec DS Dive Computer | Waterborne Safety Strap - Vytec
Cylinder Set #1
Cylinder Type: Cylinder Size: Working Pressure: Supply Type:
Steel Single Cylinder 15 litres 232 bar Open Circuit (OC) Open Circuit (OC)
O2: He: Min. PPO2: Max. PPO2:
21% - - 1.4 bar
Air Air MOD: EAD: END:
56.6 m 56.6 m -
Start Pressure: End Pressure: Diff. Pressure:  
240 bar 90 bar 150 bar  
Avg. Depth: SAC Rate:    
- -    

Avg. Depth: SAC Rate:    
20.69  m 26.18 litres/min    
Gas Mixture:
Divemaster: Michael Kakafikas, VSAG
Boat: "Miles Ahead", John Lawler's 6.5m 175HP, Sorrento

Two VSAG boats (boat owners John Lawler and Mick Jeacle) headed out from Sorrento. John Lawler wasn't diving, but Bridely Leggart, Michael Kakafikas and myself were. On the other boat, Mick Jeacle, Greg Richards, Rob Kirk and John Merlo were all diving.

Port Phillip Bay was somewhat lumpy and unpleasant as we headed towards the heads. We swung by to pass some information on to Tom Wende on Midnight Raider on our way out. Crossing the Rip was a bit tricky, but the conditions were somewhat better outside.

Being ANZAC Day it was decided a dive on one of the Woorld War One submarines would be highly appropriate. We settled on the J1 Submarine.

Once on-site we geared up and went down. The plan was for a non-penetration dive. The shot was just off to the starboard side of the submarine towards the bow, but the path down to it took us right over the submarine.

We slowly made our way along the starboard side, from the bow to the stern checking out the marine life and occassionally peeking inside the sub. As we reach the stern I signalled to the others that I'd reached my turn around point and we headed back to the bow and the shot line.

We ascended to 18 metres for our deep stop for two minutes, and then continued on up to 5 metres for our safety stop.

On surfacing it was noticeable that conditions had become a lot better. Indeed, it was shaping up as a simply magnificent day out on the water.

We waited for the second group of divers on the other boat to complete there dive and headed over to chat to Tom Wende who was waiting for some divers on the Coogee.

Then the two VSAG boats headed through the Rip and into the shelter at Point Lonsdale for lunch.

Dive Profile for Dive # 100

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