Here you will find events within SDHF in 2017, which are not reported elsewhere on the website.

CMAS visit 2017

The president and secretary general of CMAS visit Sweden and The Swedish historical diving society. In conjunction to the annual Diving exhibition in Stockholm, CMAS president Anna Arzhanova and CMAS secretary general Hassan Baccouche visited the Swedish sportsdiving fereration, SSDF, and The Swedish historical diving society, SDHF. The SDHF, is housed in the building of the old escape training tower, abandoned by the navy in 1979. The host at the visit was Dr Hans Ornhagen, consulting doctor at the Swedish sportsdiving federation, and also one of those who rescued the old house from demolition after the navy had moved. The house today contains, not only the original hardware the escape training tank and a 10 bar recompression chamber with wet pot from 1934, but also all kind of diving equipment collected during the years. As an example the recoil free water nozzle (see picture), invented in the early forties by Arne Zetterstrom, was presented as a preparation for and introduction to the following visit to the Vasa museum displaying the 17th century warship Vasa, salvaged in 1961 after more than 300 years at the bottom of Stockholm harbor. The tunnels for the hoisting cables under the ship were made by helmet divers using the Zetterstrom nozzle. Arne Zetterstrom was not only the inventor of tools for divers, he was also the man behind the first dives with hyrox in the open sea in 1945. Hydrox, a mix of Oxygen and Hydrogen, in proportions that makes it fire safe, was believed by Zetterstrom to be a substitute for heliox in deep diving when helium was not available, as in Sweden during the war. The sad story is that the young Zetterstrom, only 28 years old, was killed during an experimental dive because of a mistake that had nothing to do with the exotic breathing gas or the new decompression tables for deep bounce diving. The tragic dive was the fourth in a series of successively deeper dives made from the submarine rescue ship HMS Belos. The dive station was located at the crane for the diving platform at the aft of the ship. To prevent the platform from spinning around, when hanging at the end of a 165m long wire, a guy (a thin line) was mounted at one of the corners of the platform and up to a winch at the bow of the ship. Two conscripts, who had not been onboard during the earlier dives and consequently were not trained and informed enough got the job to handle the guy winch with the order to keep the guy tight without slack. They had no training in diving and did not understand that an ascent from a deep dive has to be done slowly and in steps so when the order was given onboard “The diver is coming up” the two at the guy winch started to take in their line. All the others understood that coming up meant “to the first stop at 120m” so the main crane hoisting the platform stopped when the wire was at the 120m mark. Zettersrom signaled OK and because of the hydrogen communication was difficult and not too many words were exchanged. What the diving supervisor did notice was that the two at the guy winch continued to take in line. Their task was to “take in the line and keep it tight” and the diver was on his way to the surface so they did what they had been told. When Zettrerstrom did not respond to questions at a later decompression stop the diving supervisor realized that something must be wrong. His attention was brought to the fact that the hoisting wire seemed less tense than earlier during the dive while the guy wire was very tight and they found the platform hanging just below the bow of the ship. Zetterstrom was unconscious on the platform according to a stand by diver sent down to the platform. He followed the platform when it was lowered to 50 m. No improvement could be seen I the status of Zetterstrom and he was hoisted quickly to the surface to be placed in a recompression chamber together with the diving doctor. Despite vigorous efforts by the doctor Zetterstrom could not be brought back to life. Everybody onboard with knowledge in diving understood that Zetterström had become unconscious when the hydrox was not changed for a gas with higher oxygen content and he could therefore not signal any problem when the decompression illness struck because of the abandoned decompression stops. A combination of hypoxia and severe decompression sickness killed Zetterstrom. A court marchal came to the conclusion that there was no one to blame because of the complex situation with a mixed crew and novel technology. The hydrox diving project was stopped. It was not until 1979 the French diving company COMEX tried hydrox in diving and the Swedish navy made hydrox exposures in chamber dives in 1983. Both COMEX and The Swedish Navy found in their experiments that hydrogen was too narcotic for use in deep diving.


The Setterstom water noszzle.

From left to right Hassan Baccouche, Hans Ornhagen and Anna Arzhanova

A draw of the accident

Working weekend in Dyktankhuset

Working days at Dyktankhuset

We have cleaning days Saturday-Sunday, February 25-26, 10 am-4pm.

Feel free to help! The more the merrier.

You can, if interested, report your contribution on info (you know what sign) sdhf.se
Of course, we do not expect you, who live far from Stockholm, to participate, but we are many in the immediate area and all forces are welcome!
Well met in Dyktankhuset!
The Board / Birgitta

SDHF cleans in storage container.

On Friday, February 17, five of the association members spent cleaning in the association’s container. Much of what is in the container is duplicates and in such poor condition that there is nothing to save. For a collector, there may be spare parts and components in the assortment that may be of interest. The intention, therefore, is to arrange a second hand market for those who are interested later in spring. Those who already know that they would like to come and see what is there should contact the association’s email address. Of course, the date for the market will be announced on this websiteda.

From left. Bert Westenberg, Hans Forsman, Tomas Jangvik and Hans Bohlin.

(Photo: H Örnhagen)


Dive gear second-hand market

The Swedish Diving History Association has been given too much stuff and we have to do away with things we cannot exhibit. Don’t expect bargains that you can use in diving directly, but we have gadgets that you can decorate and have in the bookshelf, spare parts, curiosities and not least items that can complement your collection. Visit our website for more information and a list of what we sell or donate. During the tour, we offer coffee with cake.

Click on the document for a list of items we are auctioning.


20/5 2017 Presentation and submission of bids starts at 10.00. Auction starts at 10.30.


SDHF container
Hammardalsslingan 3
141 37 Huddinge

After all the exclamation numbers have been reviewed and the items sold have been taken care of by the buyers, we donate the remaining items on the list against disposal.

Welcome to make a bargain.

Guide Course

The last course resulted in three new guides.

From left: Björn Axel Johansson – Kent Hult – Bert Westenberg


After completing the guide course (2017-08-19) we welcome four new guides!

From left: Aleksi Quispe Vuorenmaa, Magnus Waldau, Håkan Henning, Hans Forsman


Become a guide in Dyktankhuset – we educate you!

On Saturday, August 19, 2017, we will host an education, where you will learn, among other things.

  • Procedures for opening and closing
  • What to do during opening
  • History of the dive tank house
  • Objects knowledge
  • How SDHF works – general information
  • Safety procedures

The course gives you information and knowledge.

After completing the course, you will be able to come up with a more experienced guide to develop your knowledge.

The course is free of charge.

The time required is about 6 hours

Registration and possibly questions to:

Tomas Jangvik
mail: tomas.jangvik@gmail.com
telephon: 0706 55 50 50.

Welcome with your application

Tomas Jangvik


We are in great need of guides!



IN AND AROUND LARKOLLEN NEAR MOSS on the 24th to 27th of August

Open also to Non Nordic participants.

Stein Stavdal Paulsens private diving museum Larkollen

This is the main venue for eating and lectures Friday, Saturday and Sunday. Due to a different event at the hotel they have very few rooms available. Stein has contact with different private houses that can put up participants. He also has contact with the local camping place and their cabins.

So for accommodation you have to contact Stein Stavdal Paulsen steinsp@online.no with your preferred choice.


THURSDAY 24th August

For those interested in Norwegian wartime history, we have arranged a guided tour at Oscarsborg fortress in Drøbaksundet starting out on the island at 15:00. It was the guns and torpedoes from this fortress that sank the German Battlecruiser “Blücher”, and halted the invasion of Oslo on the 9th of April 1940, and thus allowed the king, parliament and government to escape. Some of us have booked accommodation in the fortress and will stay overnight. http://www.oscarsborghotel.no Further information about this part of the program from bwkahrs@online.no This part of the program is an option.

FRIDAY 25th August

11:00 Opening of the rally and the diving part at Norsk Yrkesdykkerskole (NYD) at Fagerstrand. www.nyd.no Diving with old equipment provided by the participants. We hope to have the Triewald bell from Finland there. NYD is a commercial diver training establishment.

Lunch at NYD

16:00 Transport to Larkollen and the different places of accommodation.

19:00 Prawns galore in part of Steins museum located in an old chapel called Emmaus. You can bring your own drinks (BOB Bring your Own Bottle) A limited amount of drinks for sale.

SATURDAY 26th August

08:30 – 09:30 Breakfast at Emmaus due to limited cooking facilities at the different places of accommodation. Must be finished and cleared up before 10:00.

10:00 Official opening of the rally by the chairman of the Rygge municipality and our chairman Stein Stavdal Paulsen.

10:15 Early diving in Norway with emphasis on the bell diving in Kilstrømmen in 1672 by Bjørn W. Kahrs

10:45 The most northerly dive in standard (hard hat) gear in the world by Dag Nævestad from the Norwegian Maritime Museum in Oslo.

11:15 Coffee or tea break.

11:45 Diving at Kalstø, the landing site for a pipeline on the west coast of Norway. The biggest inshore diving job in Norway, by Kai Olsen the diving manager of this project.

12:30 Lunch.

13:30 Ottestad Breathing Systems. Developing breathing equipment for deep diving by Nils T. Ottestad.

14:00 The history of the Viking diving suit. Speaker to be named.(STBN)

14:30 Coffee or tea break.

15:00 Larkollen and its (maritime) history. STBN

15:30 Our naval hero Tordenskjold and his relation to diving by Bjørn W. Kahrs

15:45 The history of Norwegian hyperbaric medicine and deep saturation diving by Kåre Segadal:

16:15 The analysis of the air samples from the sunken Russian submarine “Kursk” by Kåre Segadal.

16:30 The official opening of the new extension of Stein Stavdal Paulsen’s diving museum. Time to look at this part of his collection.

19:00 Seafood cold buffet at the chapel Emmaus. You can bring your own drinks (BOB Bring your Own Bottle). A limited amount of drinks for sale.

SUNDAY 27th August

08:30 – 09:30 Breakfast at Emmaus due to limited cooking facilities at the different places of accommodation. Must be finished and cleared up before 10:00.

10:00 Departure for Moss and the ferry across the Oslofjord to Horten. Ferry leaves approx. every half hour. Walk from the ferry to the Navy Museum.

Approx. 12:00 Guided tour of the museum and lecture about the museum.

14:00 Light lunch and end of rally.

Return to Moss for trains to Oslo or airport bus to Oslo Airport Gardermoen.

Price of rally. Limited to NOK 1000,- for food (coffee or tea, breakfast, lunch and evening meal), ferry to Horten and entrance to the Navy Museum to be paid on arrival in Larkollen. Accommodation and drinks to be paid individually.

Registration to post@dykkehistorisk.no or bwkahrs@online.no

For accommodation to steinsp@online.no