Depth
47 m
Dive profile
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Comments
We were at group of 5 divers going to Sandviken on this sunny and warm day: me, Leppis, Liisa, Pekka H and Pekka T.
I had prepared my gases the day before and glued a new neck seal to my drysuit using Aquabond glue.
This was my first deep technical dive of this year.
My gases for the dive were:
- D12 containing trimix I had blended already last year, I topped it up a bit with air and analysis showed: 19.6% Oxygen, 32% Helium.
- Alu7 ENA50 for deco. Somehow it had dropped to 120 bar since last fill? So I had to refill it and got 200 bar of 50.8% Oxygen.
- Alu2 with air for the drysuit was full already
We met at Kuplakammio at 10 then drove to Porkala Marin where our boat hinkki was at harbour. Left the harbour after loading Hinkki about 11:40.
Arrived to Sandviken GPS location at 12:15.
Then spent about one hour trying to locate the wreck using sonar. It is difficult to find as the ship superstrucutre is only about 2-3 meters above the bottom, and bottom is at a slope 50 to 46 meters.
We finally decided to drop the bigger marker buoy at 13:15 and commence diving.
Liisa and Leppis went first. We could see from surface from the bubbles that the marker buoy was not at a right spot.
The bubbles were going towards NE and setteled for a confined area, so we concluded that they had found the wreck by searching.
Liisa and Leppis came up after 55 minutes and confirmed they had found the wreck and had set up a line from shot to the wreck.
Pekka T had a plan to take a photo of the steering wheel. He had a Canon 5Dmk3 + 14 mm lens with dual stobes and a 10kLumen video light. The photo plan was that Pekka H would be the model floating behind the steering wheel, and I would be holding the video light 2 meters above the wheel giving top light. Pekka T would be stopping on descent at 10 m to adjust the camera, as it would not be practical to do it at the wreck aty 48 meters. Pekka T was diving on a Poseidon CCR, me and the other Pekka has OC D12 with TMX and Alu7 stages of EAM50 for deco.
I has my small Olympus TG-5 in dive housing with me as my camera, and my new Nanight Tech-2 light (4kLumen), but mostly I was using the bigger 10kLm video light on the dive.
Our dive plan was to spend 20 minutes at the bottom, taking into account 2 minute travel from wreck back to ascent line. Then do gas switch at 21m, 1-2 minute stops each 3 m, then 20 min deco at 6 m.
It was a really hot day, 30 degrees, and sun shining from cloudeless sky and our Hinkki boat providing no protection from sun. The sea surface was covered in nasty green algae due to the warm weather. Neverthless, I had to go to swim before starting our own dive because it was so hot. Dressing into dry suit in this weather was painfully hot.
Finally we got to water and descent at 15:21 with planned deadline 16:36. At 10 meters Pekka T adjusted his camera as planned so we got to bottom at 45 meters at 8 min runtime.
There was indeed the line leading to the wreck, so we followed it for the wreck and got there at 9 min runtime. The line was going straight to the rear section where the steering wheel was.
Visibility was great, but it was quite cold down there, about 3 deg-C.
Me and Pekka H set up around the steering wheel as planned, Pekka as the model and me illuminating from above. I was hanging at 41 meters for the few minuts that pictures were taken, and the operation proceeded smoothly.
At 15 min runtime we were finished with that and started to swim around the wreck. To the bow and then quickly back as we were running out of time.
Reached the line end and reel at 25 min. Then Pekka H picked the reel and started to reel in the line and we others followed. We were at the shot at 27 min and started ascent. Ascent went as planned without issues. Me and Pekka H did gas switch at 21m, Pekka T had CCR so need for gas switches.
At 6 meters the water was 15 deg-C, so very comfortable for decos. My Shearwater was showing deco clear at 59 min.
But Pekka T wanted to do extended decos at 6 meters, so we hanged at the line for some more time, and we reached surface at 16:36 after 75 min dive time total.
My neck seal did not leak, so glueing was succesful. The only moisture inside the suit was from sweating before getting to water.
The dive was succesful, and the wreck was beautiful.
We got back to harbour 17:40. We had some pizza at the port restaurant and Pekka T showed his pictures from the camera. They were really amazing.
I also took some pictures with my tiny Olympus, but they were no match to the quality you get with a DSLR, and a true wide angle lens and proper strobes on arms.
My are photos at:
https://photos.app.goo.gl/DoKykncm6xp9ftdc9
divelogs link:
https://en.divelogs.de/dive/2428705
About the Sandviken wreck:
It is a small steamship that sank on 10 Septemeber 1876 in a storm.
It was coming from Kornstadt in Sweden with a cargo of rye. In the storm the cargo shifted and the ship listed and sank on the spot. Crew of 11 perished with only 1 survivor.
The wreck was found 1998.
The ship was built in Liverpool 1871 and has a hull of iron and a steam engine at rear. It was 35 meters long, 6 meters wide.
The ship's bell was stolen in 2011, the thief has not been caught.
http://www.hylyt.net/item/sandviken-2480/#content
https://www.kyppi.fi/palveluikkuna/mjreki/read/asp/r_kohde_det.aspx?KOHDE_ID=1252
Location of Sandviken:
59° 49.758' N, 24° 29.712' E
59° 49' 45.48" N, 24° 29' 42.72" E
59.75 N, 24.49527778 E
(location approximate)
I had prepared my gases the day before and glued a new neck seal to my drysuit using Aquabond glue.
This was my first deep technical dive of this year.
My gases for the dive were:
- D12 containing trimix I had blended already last year, I topped it up a bit with air and analysis showed: 19.6% Oxygen, 32% Helium.
- Alu7 ENA50 for deco. Somehow it had dropped to 120 bar since last fill? So I had to refill it and got 200 bar of 50.8% Oxygen.
- Alu2 with air for the drysuit was full already
We met at Kuplakammio at 10 then drove to Porkala Marin where our boat hinkki was at harbour. Left the harbour after loading Hinkki about 11:40.
Arrived to Sandviken GPS location at 12:15.
Then spent about one hour trying to locate the wreck using sonar. It is difficult to find as the ship superstrucutre is only about 2-3 meters above the bottom, and bottom is at a slope 50 to 46 meters.
We finally decided to drop the bigger marker buoy at 13:15 and commence diving.
Liisa and Leppis went first. We could see from surface from the bubbles that the marker buoy was not at a right spot.
The bubbles were going towards NE and setteled for a confined area, so we concluded that they had found the wreck by searching.
Liisa and Leppis came up after 55 minutes and confirmed they had found the wreck and had set up a line from shot to the wreck.
Pekka T had a plan to take a photo of the steering wheel. He had a Canon 5Dmk3 + 14 mm lens with dual stobes and a 10kLumen video light. The photo plan was that Pekka H would be the model floating behind the steering wheel, and I would be holding the video light 2 meters above the wheel giving top light. Pekka T would be stopping on descent at 10 m to adjust the camera, as it would not be practical to do it at the wreck aty 48 meters. Pekka T was diving on a Poseidon CCR, me and the other Pekka has OC D12 with TMX and Alu7 stages of EAM50 for deco.
I has my small Olympus TG-5 in dive housing with me as my camera, and my new Nanight Tech-2 light (4kLumen), but mostly I was using the bigger 10kLm video light on the dive.
Our dive plan was to spend 20 minutes at the bottom, taking into account 2 minute travel from wreck back to ascent line. Then do gas switch at 21m, 1-2 minute stops each 3 m, then 20 min deco at 6 m.
It was a really hot day, 30 degrees, and sun shining from cloudeless sky and our Hinkki boat providing no protection from sun. The sea surface was covered in nasty green algae due to the warm weather. Neverthless, I had to go to swim before starting our own dive because it was so hot. Dressing into dry suit in this weather was painfully hot.
Finally we got to water and descent at 15:21 with planned deadline 16:36. At 10 meters Pekka T adjusted his camera as planned so we got to bottom at 45 meters at 8 min runtime.
There was indeed the line leading to the wreck, so we followed it for the wreck and got there at 9 min runtime. The line was going straight to the rear section where the steering wheel was.
Visibility was great, but it was quite cold down there, about 3 deg-C.
Me and Pekka H set up around the steering wheel as planned, Pekka as the model and me illuminating from above. I was hanging at 41 meters for the few minuts that pictures were taken, and the operation proceeded smoothly.
At 15 min runtime we were finished with that and started to swim around the wreck. To the bow and then quickly back as we were running out of time.
Reached the line end and reel at 25 min. Then Pekka H picked the reel and started to reel in the line and we others followed. We were at the shot at 27 min and started ascent. Ascent went as planned without issues. Me and Pekka H did gas switch at 21m, Pekka T had CCR so need for gas switches.
At 6 meters the water was 15 deg-C, so very comfortable for decos. My Shearwater was showing deco clear at 59 min.
But Pekka T wanted to do extended decos at 6 meters, so we hanged at the line for some more time, and we reached surface at 16:36 after 75 min dive time total.
My neck seal did not leak, so glueing was succesful. The only moisture inside the suit was from sweating before getting to water.
The dive was succesful, and the wreck was beautiful.
We got back to harbour 17:40. We had some pizza at the port restaurant and Pekka T showed his pictures from the camera. They were really amazing.
I also took some pictures with my tiny Olympus, but they were no match to the quality you get with a DSLR, and a true wide angle lens and proper strobes on arms.
My are photos at:
https://photos.app.goo.gl/DoKykncm6xp9ftdc9
divelogs link:
https://en.divelogs.de/dive/2428705
About the Sandviken wreck:
It is a small steamship that sank on 10 Septemeber 1876 in a storm.
It was coming from Kornstadt in Sweden with a cargo of rye. In the storm the cargo shifted and the ship listed and sank on the spot. Crew of 11 perished with only 1 survivor.
The wreck was found 1998.
The ship was built in Liverpool 1871 and has a hull of iron and a steam engine at rear. It was 35 meters long, 6 meters wide.
The ship's bell was stolen in 2011, the thief has not been caught.
http://www.hylyt.net/item/sandviken-2480/#content
https://www.kyppi.fi/palveluikkuna/mjreki/read/asp/r_kohde_det.aspx?KOHDE_ID=1252
Location of Sandviken:
59° 49.758' N, 24° 29.712' E
59° 49' 45.48" N, 24° 29' 42.72" E
59.75 N, 24.49527778 E
(location approximate)
Tanks
Main tank
- Volume
- 7,0 l
- Press. Start
- 200 bar
- Press. End
- 60 bar
- O2%
- 50,0%
Tank 2
- Volume
- 2,0 l
- Press. Start
- 200 bar
- Press. End
- 100 bar
- O2%
- 21,0%