Logbook Scuba Dive # 278 - J4 Submarine

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Date:	Entry Time:	Dive Time:	Max. Depth:
Sun, 27-Jun-2010	11:49:00	39 minutes	28 metres
Dive Location:		City / Island:
J4 Submarine		The Heads, Bass Strait, VIC
Country:		Dive Master:
Australia		Mark Ryan
Dive Shop:		Dive Trip:
Aquability		-
Buddy/Buddies:
Brendan Stevenson, Mark Ryan
Dive Details:
Entry:	Boat Name:
Boat	-
Start PG:	Entry Time:	Exit Time:	End PG:
-	11:49:00	12:28:00	-
Altitude:	Rep. Dive:	Surface Interval:
0 m	Yes	02:09
Max. Depth:			Avg. Depth:
28 metres			17.21 m
	Dive Time:		Deco. Dive:
	39 minutes		Yes

Deco. Stop Details:
28 - 20 21 - 24 - Switch to EAN 50 12 - 26 9 - 28 6 - 38 0 - 41
Conditions:
Weather:	Air Temp.:	Water Temp.:
Cloudy	17 °C	14 °C
Water:	Waves:	Current:
Salt	No Waves	No Current
Visibility:	Horizontal Vis.:	Vertical Vis.:
Good	-	-
Equipment:
Weight:	Dive Suit:	Dive Computer:
5 kg	Wetsuit 7 mm	Suunto Vytec DS
Equipment used on this dive:
Apeks XTX200 Regulator - Stage 1 \| Apeks XTX200 Regulator - Twin Primary \| Apeks XTX200 Regulator - Twin Secondary \| Apollo Bio-Fin Pro \| Buddy Pocket Reel \| Buddy Surface Marker Buoy \| DUI Weight & Trim 2 Harness \| Faber T1 12.2L Steel Cylinder \| Faber T2 12.2L Steel Cylinder \| Mirage A250 Wrist Slate \| Neptune Scorpion Gold 7mm SemiDry Wetsuit \| Northern Diver Superstretch 2mm Neoprene Gloves \| Northern Diver Thermalskin \| Oceansuits 3mm Hood \| OMS 300 bar Rotating Cross Bar Manifold \| OMS Compact Quick Dump Weight Pockets \| OMS Dual Bladder, Banded Wing - Rec \| OMS Dual Cylinder Bands \| OMS IQ Pack BC Harness \| OMS Silicone Necklace Secondary - Tech \| OMS Stage Kit - 1 \| OMS Stainless Steel Backplate \| OMS Submersible Pressure Gauge \| Performance Diver Multi Purpose Boots \| Sonar Explorer Aqua Silicone Mask \| Suunto SK-7 Compass Wrist - 1 \| Suunto Transmitter - Tech \| Suunto Vytec DS Dive Computer \| Waterborne Safety Strap - Vytec

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:
32%	0%	-	1.4 bar
EAN 32	MOD:	EAD:	END:
EAN 32	33.7 m	27.7 m	33.7 m
Start Pressure:	End Pressure:	Diff. Pressure:
224 bar	130 bar	94 bar
Avg. Depth:	SAC Rate:
-	-

Cylinder Set #2
Cylinder Type:	Cylinder Size:	Working Pressure:	Supply Type:
Alumimium	11 litres	200 bar	Open Circuit (OC)
O2:	He:	Min. PPO2:	Max. PPO2:
50%	-	0.19 bar	1.6 bar
EAN 50	MOD:	EAD:	END:
EAN 50	22.0 m	10.3 m	-
Start Pressure:	End Pressure:	Diff. Pressure:
-	-	-
Avg. Depth:	SAC Rate:
-	-

Avg. Depth:	SAC Rate:
17.21 m	10.63 litres/min
Gas Mixture:
Nitrox 32% - Back Nitrox 50% - Stage 1

Instructor: Mark Ryan, Aquability Boat Name: Dive Victoria Second dive of my TDI Advanced Nitrox Diver and TDI Decompression Procedures Diver courses with Mark Ryan as the instructor. Brendan was along to be my dive buddy and practice skills. After an extensive defriefing between dives, plus making some changes to maybe make it a bit easier for me to reach the valves, and dropping some weight, we headed out for our second planned dive on the J4 Submarine. The three of us went into the water together. Proceeded down to the bottom alongside the hull of the J4 Submarine. My trim was better, but still need improvement. Mark started to put us through some more drills. First up, I had another go at reaching the valve knobs. By doing headstand on the sand at the bottom and loosening off the crotch strap I could just touch the valve knobs, but not turn them. Some progress, but not enough. Managed to get my SMB line entangled with Brendan's during the ascent, but also untangled it.

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Field4
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