diverebreather / Holgis.info

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After last year the conditions for the dive the U455 were not good, I had planned a new expedition. This was then scheduled from 05 to 9 May 2013.

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Sorry, this entry is only available in Deutsch.

For Mid-October DIRrebreather expedition was planned to submarine U455. I had also logged and made everything clear so far. The aim was to confirm the exact identity of the submarine, and possibly to collect data for its demise.

Dives were planned up to 120m depth. The submarine is inclined to the seabed. The bug starts at about 92m, the rear part is in the sea bed at about 123m.

Our team gases were measured at Diluent 8/80, Bailout 10/70, 18/45, 50, and O2.

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Gerd and I took advantage of the german holiday to make a small dive at lake  Vogelstang.

Gerd took the opportunity to try out his new housing for the GoPro Hero2

This year we have planned a 3 day tour of the Milford Haven.

Preparations started for a few weeks, make rebreather ready to make training dives with the TR300c.

On Wednesday it was ready, all the equipment of 3 divers had been stowed in the Caddy. We drove off at 8 clock in the Mediterranean.

About 18 clock we arrived, unfortunately delayed due to closure of the Gotthard tunnel, then the small harbor in Arenzano and unloaded our gear.

Then we moved into our hotel and enjoy a traditional dinner in the nearby pizzeria we planned the next day.

Thursday, 09.06 (1st dive):
We were, as arranged by 9 clock at the base and prepared the TR300c rebreather filling sofnolime, assembly, calibration, and the checks were completed in time to exit at 10 clock.
The first dive was shorter then once (we had OC SCUBA divers here) but to check the equipment and explore the wreck just right.

On the second dive, the sea was a little uneasy, but what the Rip ride was “sporty”. On the second dive I asked the sight in the engine room, but it was a bit too much sediment in the water.

Friday (Day 2) 07.09:
The Friday showed up again from its best side. As our good or lime for a dive was, we made a trip to the foredeck.

The second dive (after changeing the sofnolime) we headed to the screw. At about 65m visibility was poor but still good to orient themselves. Arrived at the helm, I had not seen the screw until Gerd signaled down, and then I saw that I was practically on the screw Smiley Visibility was not good but at least 2m. After a few minutes (plan), we went back up to the deck, the slow climb to the shot line already slowly walked down the Decompression something.

Saturday, 08.09 (last day):
The last day we went in peace. We dived again until the very stern, where the already heavy winches slowly break into the deck. Then the chimney circling in slow ascent, then glanced up into the chimney, and then back to the main deck.
The second dive took us to the blast hole. The opening is quite large and the light of Torche lost in obscurity. Very interesting, that we are a closer look at the next visit.
Everything was very relaxed. The immersion times were again limited by OC diver something.

Dives:

52m 62min Diluent 15/55
59m 83min Diluent 15/55
56m 63min Diluent 15/55
80m 75min Diluent 10/70
54m 60min Diluent 15/55
67m 62min Diluent 15/55

The Exploration Team: Holger TR300c eCCR (left) Karin   TR300c mCCR (mid) Gerd   TR300c mCCR (right)
We have all the gases with us
Karin on the way to the Shotline
Gerd at teh Shotline
Holger over one of the decks

Nachdem Gerd die letzten 2 Wochen beim Bau (bohren und kleben) geholfen hat, war nun heute der erste Tauchgang mit seinem neuem TR300c.

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Karin und ich haben uns heute bei schönstem Sommerwetter am Plittersdorfer Strand getroffen.

Es war viel Betrieb heute und wir mussten erst einmal lange nach einem Parkplatz suchen.

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Today, Karin and I could finally go to dive.

Karin had set up two weeks ago, the TR300c mCCR and of course, was already interested in how he can immerse themselves in her configuration.

I had it done in time, the last missing pieces and handles to make the new TR300c eCCR and so we met at the lake at last to dive all times.

Despite initially dark clouds, we prepared ourselves, we were just ready for diving as the sun came out and thus were had very beautiful underwater images.

After a relaxing dive of 70min, the devices were stowed away and we chatted for a little over coffee about the dive and the technology.

Karin and Holger before diving with TR300c mCCR (left) and right TR300c eCCR
TR300c mCCR dived by Karin
TR300c eCCR dived by Holger

Together with the DIRRebreather an expedition was planned for the Vessel “Graf Zeppelin, Baltic Sea” from 03.06. – 06/06/2012.

The group was set up internationally, 4 divers from Spain, three divers from the Netherlands and the team from Germany.

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