Logbook Scuba Dive # 368 - USS Apogon (SS-308)
| Logbook Scuba Dive # 368 - USS Apogon (SS-308) |
| Cylinder Set #1 |
| Cylinder Type: |
Cylinder Size: |
Working Pressure: |
Supply Type: |
| Steel |
 24 litres |
300 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: |
|
| 253 bar |
119 bar |
134 bar |
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| Avg. Depth: |
SAC Rate: |
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| - |
- |
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| 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% |
- |
1.6 bar |
| EAN 50 |
MOD: |
EAD: |
END: |
| 22.0 m |
10.3 m |
22.0 m |
| Start Pressure: |
End Pressure: |
Diff. Pressure: |
|
| 200 bar |
- |
- |
|
| Avg. Depth: |
SAC Rate: |
|
|
| - |
- |
|
|
|
| Cylinder Set #3 |
| Cylinder Type: |
Cylinder Size: |
Working Pressure: |
Supply Type: |
| Steel |
7 litres |
232 bar |
Open Circuit (OC) |
| O2: |
He: |
Min. PPO2: |
Max. PPO2: |
| 95% |
0% |
- |
1.6 bar |
| EAN 95 |
MOD: |
EAD: |
END: |
| 6.8 m |
-8.9 m |
6.8 m |
| Start Pressure: |
End Pressure: |
Diff. Pressure: |
|
| 200 bar |
- |
- |
|
| Avg. Depth: |
SAC Rate: |
|
|
| - |
- |
|
|
|
| Avg. Depth: |
SAC Rate: |
|
|
| 21.42 m |
15.51 litres/min |
|
|
| Gas Mixture: |
| - |
We dived the two submarines sunk during the nuclear blasts at Bikini Atoll, which were significantly larger than the four WWI J-class subs I was used to diving back home in Melbourne.
The USS Apogon (SS-308) submarine is 95 metres long, weighing 2424 standard tons submerged. Lightly damaged during the "Test Able" atomic blast on 1 July 1946, USS Apogon was submerged in 52 metres of water and moored at a keel depth of 30 metres at a range of approximately 780 metres from the point of the "Test Baker" underwater atomic blast on 25 July 1946. She was found at the bottom, and attempts to salvage her were abandoned before she was brought to the surface.
For our Friday morning dive, we headed over to the USS Apogon submarine. She sits perfectly upright on a lifeless sandy bottom. She is a beautiful dive as she is completely covered in whip corals and soft corals, and shrouded in swirling schools of glassfish, which are usually found around the conning tower. Indeed, the shadowy silhouette of USS Apogon's conning tower, completely enveloped by glassy sweepers, is one of the most beautiful sights you'll ever see underwater.
At the stern, you can see a torpedo tube with a loaded torpedo up the spout!
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MV Windward at Bikini Atoll - Photo: Lloyd Borrett
Wharf on Bikini Island - Photo: Lloyd Borrett
Welcome sign at Bikini Island wharf - Photo: Lloyd Borrett
Dive gear cleaning tub at Bikini Island wharf - Photo: Lloyd Borrett
Captain Chris Abrahams coming to pick us up at Bikini Island wharf - Photo: Lloyd Borrett
USS Apogon in 1945
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Field10
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Good
