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Berkeley Yacht Club Stay Salty

  • Colin Thompson
  • Oct 12, 2023

About That Concrete Submarine...

concrete submarine yacht

If you’ve attended an “Old Salts” dinner in recent years, you’ve undoubtedly seen the picture of the concrete submarine on the rocks beneath our clubhouse deck. The circumstances of where it came from and how it got there seem to have been something of a mystery for many years.

The sub was a 125-foot model of what the builder, Hal B. Hayes, had hoped would eventually become a 400-foot version that would travel 75-80 knots over open ocean, replacing the Liberty ships. The story that had been shared around the clubhouse over the years was that during the sea trial, the sub proved to be completely unseaworthy and had to be rescued by the Coast Guard, twice. After the second rescue, the Coast Guard was… displeased… and blew a hole in the side of the boat to ensure there wouldn’t be a third attempt and subsequent rescue.

The newspapers, however, all characterized the sea trial on August 21, 1943, as a success and seemed to indicate that the Maritime Commission considered the project promising. Successful sea trials don’t usually end with boats sitting high and dry on the rocks, with holes in their sides, so I decided to investigate.

It seemed to me that if the Coast Guard rescue had really happened, there ought to be some sort of report or log concerning the incident, and I set out to find it. Three months later, I hadn’t found any such report, but I did find a wealth of information about the sub and its inventor, and presented my findings at BYC’s August Member Dinner.

While I was unable to find any real proof about the Coast Guard part of the story, Robin Crawford discovered an article from 1960 in the Oakland Tribune shortly after my presentation, which places blame for the hole in the side of the sub on the Berkeley harbormaster, with the express purpose of using the hulk to serve as a bulkhead for our clubhouse deck in 1947. This would seem to agree with a document I found in the National Archives, wherein Hal’s brother, Walter, claims to have sold the submarine to the City of Berkeley to be “sunk for use as a breakwater” in 1944.

But who can say? Perhaps there were more sea trials after August 21, 1943, and perhaps one or more of them did require a rescue and tow from the Coast Guard.

All of the material I’ve gathered has been zipped up in a file called “concrete_semisubmarine.zip” and uploaded to the Files section of our website.

VIEW NOW >>

You will need to log into the Members section of the website to access it. We hope the recording of the presentation at the August Member Dinner will be there soon as well

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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

TRID the TRIS and ITRD database

FEASIBILITY STUDY FOR CONCRETE SUBMARINE

A feasibility study was conducted by utilizing classical analysis techniques and state of the art construction methods. Prestressed concrete was found to be a viable material for shallow to medium depth submersibles. A replica of an existing steel-hulled submarine was used in the calculations to enable both economic and performance characteristics to be analyzed and compared. It was found that both longitudinal and circumferential prestress must be used in the construction of the pressure hull. To facilitate this, a modular-segmental construction was employed. It was also found that concrete offers both performance and economic advantages over steel. The performance advantages include: freedom from maintenance, durability, readily-available materials, superior performance under impact and accident conditions, non temperature-sensitive, easily formed into compound curvature, and concrete has good insulating properties. Economic analysis has indicated that the concrete pressure hull would cost between 50% and 60% of the equivalent steel hull.

  • A more extensive treatment can be found in the final report, Contract No. N66001-74-C-0408, Naval Undersea Center, San Diego, California. This research was carried out at the University of California, Berkeley, California, and supported in part by Naval Undersea Center Contract No. N66001-74-C-0408.

Society of Naval Architects and Marine Engineers

  • Publication Date: 1975-3
  • Features: References;
  • Pagination: 39 p.

Subject/Index Terms

  • TRT Terms: Concrete ; Design ; Ferromagnetic materials ; Ships ; Submarines ; Submersibles
  • Uncontrolled Terms: Concrete ships
  • Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

  • Accession Number: 00127041
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Files: TRIS
  • Created Date: Nov 5 1975 12:00AM

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Concrete submarine

Discussion in ' All Things Boats & Boating ' started by waterchopper , Sep 24, 2008 .

waterchopper

waterchopper Guest

Does anyone here know what happened with the 200 ton concrete submarine that was being built in Columbia? Is there a link to pictures of the boat being built or was there a problem. Tx Bill  

Guillermo

Guillermo Ingeniero Naval

This one? http://imulead.com/tolimared/concretesubmarine/ "Handover scheduled for 14.October 2008 in San Francisco." There are some threads in these forums about 'concrete submarines'. Designer/builder was a frequent contributor. Just search for them. Cheers.  

Attached Files:

Co-submarine.gif.

Tug

Tug Junior Member

I wonder if you put a 100 ft telescopic aluminuim mast/snorkel on it if you could sail a sub while submerged...hmmm.. Cheers Tug  

daiquiri

daiquiri Engineering and Design

Well, now that I think of it... If I had to design something that needs to get to the sea bottom, concrete would definitely be a material of first choice.  
I read everything at the concrete submarine site but it seems like all post ended after he recieved the funds to begin building the 200 ton sub for the man in california. I am hoping that he is just busy building or testing the sub and that there was not a problem. He should be completing and delivering the submarine next month some time acording to his last posts in september of 2007. I have tried to search for info on this build but have found nothing. Tx Bill  

blackdaisies

blackdaisies Senior Member

You would probably have a water ballast system in it, and empty it to raise it to sea level, raise your mast and sail like that. I've seen cheap plywood designs for underwater boats, but none with a mast on top for sailing above or below the water. That would be interesting.  

Dane Allen

Dane Allen Junior Member

I've read a lot about submarines from Columbia, and they aren't carrying concrete. Thinking about concrete submaries reminds me of what happens to and egg when cracked under pressure. I can just picture the brochure now..."It's a submarine, a reef AND a tomb all packaged into one!!!"  

Arildo

Arildo Junior Member

Hmm, iterresting. Most problem with a submarine is to get it heavy enough vs volume to -actually- dive! I went a different way when I designed and are currently bulding my sub. - Got the volume down! My sub that is currently under building, has a volume of about 330 litre. It is made of carbon fibre - has ambient pressure (no structural force) and weight about 120kg dry. Then add a pilot (80kg), 100kg in water ballast, and some lead ballast... -and sunk! It has one electric motor each side with rudders and invidual motor control. If interrested, I can send pictures  
Dane Allen: An egg crack at about 20m depth (according to mythbusters!)  
Columbian concrete sub: Where is the propulution props?  

marshmat

marshmat Senior Member

As strange as it sounds, concrete is (from an engineering standpoint) a very good material for submerged, ambient-pressure structures. Weight constraints in a sub are minimal; most need a lot of ballast added to dive. And in a 1-atmosphere craft, the vessel is at lower pressure than its surroundings, thus the loads on the shell tend to be compressive. Ideal for reinforced concrete. Indeed, many oil rigs have 1-atmosphere air pressure hundreds of feet down inside hollow concrete legs. A sub is no different- just not as highly loaded, so easier to engineer. And concrete is a hell of a lot easier to form into foot-thick, compound-curvature walls than steel is. There was a fair bit of discussion about c-subs a year or two ago on here.... looks like the guy is actually building a few now?  

rwatson

rwatson Senior Member

Where is he building a few marshmat? I bet the 200 ton model never makes it into regular use, if it is ever even launched. I agree that as a stand alone object, concrete is suitable for submerged operation. As a submarine - no way. The big problem is the "add ons". You cant drill concrete and add reliable thru hulls, structural items etc easily like you can in steel or alloy. Imagine incorporating the anchor hardware and controls, power drives, navigation aids, ballast outlets etc. Sure, you can use epoxy to make it watertight, but the difficualties of the engineering are substantial - eg load bearing valves for ballast thru hulls. Just engineering the entrance hatches and keeping them watertight would be a major drama. Steel and concrete have different expansion rates for a start. Like all craft, the cost of a hull is a small percentage of the total. The reason for building in concrete is just some lame *** idea for saving money, a relatively small amount of money. You then have to abandon 200 years of engineering knowledge the fart around with crazy, and now dangerous workarounds for essential services. You also have to use the crazy "egg shape" to maximise pressure resistance, which brings a whole lot of other usage problems ( like major rocking at anchor for a start) Then there is the quality control. Concrete used as subamarine has to be hand laid - every critical inch of it. Ferroconcrete yacht hulls have enough problems - but would you trust your life to high pressures, year after year, knowing that the hull integrity depended on carefull laying every square foot being free of voids, mis-mixtures, etc? You would be dripping sweat on every dive! especially after the first 6 months when you have no way of knowing if the steel reinforcement was being affected by salt conditions. Finally, it cant be cheap to build such a big sub - show me the broker who will insure the sucker ? So you have 3/4 of a million dollars of floating pavement at the mercy of the elements. Try sleeping soundly at night. I am all for amatuer sub building-but why start with such a crazy material for the sake of a few dollars. I would love to see pictures of your sub Arildo.  
I'll get pictures 4U rwatson! Not sure if I should get it for everyone, as this is only a prototype.. First do look at the old not updated: www.scubatron.com , but this pics is pretty old......send me an email at "[email protected]" for more resent picts if of interrest!  

FAST FRED

FAST FRED Senior Member

I wonder if you put a 100 ft telescopic aluminuim mast/snorkel on it if you could sail a sub while submerged... A box kite or one of the newer style chute systems would do fine . No reason to go deep, just far enough to only pay for hull surface resistance , but not wavemaking. FF  
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dccd

dccd Design director

Masted sub Here is a previous concept of a sailing semi sunken sub ... http://www.boatdesign.net/forums/showpost.php?p=142780&postcount=71  

Milehog

Cement/Concrete Saves Vessel Mid Ocean

Poida

FRP - Concrete

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Cheap $ 2 Million personal submarine ?!

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Boat Design Net

concrete submarine yacht

For the first time Rosatom Fuel Division supplied fresh nuclear fuel to the world’s only floating nuclear cogeneration plant in the Arctic

The fuel was supplied to the northernmost town of Russia along the Northern Sea Route.

concrete submarine yacht

The first in the history of the power plant refueling, that is, the replacement of spent nuclear fuel with fresh one, is planned to begin before 2024. The manufacturer of nuclear fuel for all Russian nuclear icebreakers, as well as the Akademik Lomonosov FNPP, is Machinery Manufacturing Plant, Joint-Stock Company (MSZ JSC), a company of Rosatom Fuel Company TVEL that is based in Elektrostal, Moscow Region.

The FNPP includes two KLT-40S reactors of the icebreaking type. Unlike convenient ground-based large reactors (that require partial replacement of fuel rods once every 12-18 months), in the case of these reactors, the refueling takes place once every few years and includes unloading of the entire reactor core and loading of fresh fuel into the reactor.

The cores of KLT-40 reactors of the Akademik Lomonosov floating power unit have a number of advantages compared to the reference ones: a cassette core was used for the first time in the history of the unit, which made it possible to increase the fuel energy resource to 3-3.5 years between refuelings, and also reduce the fuel component of the electricity cost by one and a half times. The FNPP operating experience formed the basis for the designs of reactors for nuclear icebreakers of the newest series 22220. Three such icebreakers have been launched by now.

For the first time the power units of the Akademik Lomonosov floating nuclear power plant were connected to the grid in December 2019, and put into commercial operation in May 2020. The supply of nuclear fuel from Elektrostal to Pevek and its loading into the second reactor is planned for 2024. The total power of the Akademik Lomonosov FNPP, supplied to the coastal grid of Pevek without thermal energy consumption on shore, is about 76 MW, being about 44 MW in the maximum thermal power supply mode. The FNPP generated 194 million kWh according to the results of 2023. The population of Pevek is just a little more than 4 thousand, while the FNPP has a potential for supplying electricity to a city with a population of up to 100 thousand people. After the FNPP commissioning two goals were achieved. These include first of all the replacement of the retiring capacities of the Bilibino NPP, which has been operating since 1974, as well as the Chaunskaya TPP, which has already been operating for more than 70 years. Secondly, energy is supplied to the main mining companies in western Chukotka in the Chaun-Bilibino energy hub a large ore and metal cluster, including gold mining companies and projects related to the development of the Baimsk ore zone. In September 2023, a 110 kilovolt power transmission line with a length of 490 kilometers was put into operation, connecting the towns of Pevek and Bilibino. The line increased the reliability of energy supply from the FNPP to both Bilibino consumers and mining companies, the largest of which is the Baimsky GOK. The comprehensive development of the Russian Arctic is a national strategic priority. To increase the NSR traffic is of paramount importance for accomplishment of the tasks set in the field of cargo shipping. This logistics corridor is being developed due regular freight voyages, construction of new nuclear-powered icebreakers and modernization of the relevant infrastructure. Rosatom companies are actively involved in this work. Rosatom Fuel Company TVEL (Rosatom Fuel Division) includes companies fabricating nuclear fuel, converting and enriching uranium, manufacturing gas centrifuges, conducting researches and producing designs. As the only nuclear fuel supplier to Russian NPPs, TVEL supplies fuel for a total of 75 power reactors in 15 countries, for research reactors in nine countries, as well as for propulsion reactors of the Russian nuclear fleet. Every sixth power reactor in the world runs on TVEL fuel. Rosatom Fuel Division is the world’s largest producer of enriched uranium and the leader on the global stable isotope market. The Fuel Division is actively developing new businesses in chemistry, metallurgy, energy storage technologies, 3D printing, digital products, and decommissioning of nuclear facilities. TVEL also includes Rosatom integrators for additive technologies and electricity storage systems. Rosenergoatom, Joint-Stock Company is part of Rosatom Electric Power Division and one of the largest companies in the industry acting as an operator of nuclear power plants. It includes, as its branches, 11 operating NPPs, including the FNPP, the Scientific and Technical Center for Emergency Operations at NPPs, Design and Engineering as well as Technological companies. In total, 37 power units with a total installed capacity of over 29.5 GW are in operation at 11 nuclear power plants in Russia. Machinery Manufacturing Plant, Joint-Stock Company (MSZ JSC, Elektrostal) is one of the world’s largest manufacturers of fuel for nuclear power plants. The company produces fuel assemblies for VVER-440, VVER-1000, RBMK-1000, BN-600,800, VK-50, EGP-6; powders and fuel pellets intended for supply to foreign customers. It also produces nuclear fuel for research reactors. The plant belongs to the TVEL Fuel Company of Rosatom.

concrete submarine yacht

Rosatom obtained a license for the first land-based SMR in Russia

On April 21, Rosenergoatom obtained a license issued by Rostekhnadzor to construct the Yakutsk land-based SMR in the Ust-Yansky District of the Republic of Sakha (Yakutia).

concrete submarine yacht

ROSATOM and FEDC agree to cooperate in the construction of Russia's first onshore SNPP

ROSATOM and FEDC have signed a cooperation agreement to build Russia's first onshore SNPP in Yakutia.

concrete submarine yacht

Rosatom develops nuclear fuel for modernized floating power units

Rosatom has completed the development of nuclear fuel for the RITM-200S small modular reactor designed for the upgraded floating power units.

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  1. Concrete Submarine Yacht

    Concrete Submarine Yacht 200 ton / 18m - a self propelled habitat unit, for a California customer, finished in raw building, moving toward the waterline. Status 15. October 2009. The hull is the space and volume equivalent of a 68 square meter apartment. The cost per cubic meter living space is comparable to European and US real estate costs ...

  2. Concrete ship

    History Blueprints for a concrete boat Concrete boat constructed by Walter Dowsey hauled out in Chicago The Namsenfjord. The oldest known ferrocement watercraft was a dinghy built by Joseph-Louis Lambot in Southern France in 1848. Lambot's boat was featured in the Exposition Universelle held in Paris in 1855.. Beginning in the 1860s, ferrocement barges were built in Europe for use on canals ...

  3. Concrete Submarine Yacht

    single family seastead, live aboard, submarine yacht (Preview) Concrete submarine project : 2 : 309 : single family seastead, live aboard, submarine yacht : venice floating structures (Preview) Concrete Surface Floating Solutions : 2 : 105 : venice floating structures, plate seastead : Rion-Antiron Bridge (Preview) Rion - Antirion Bridge Pylon ...

  4. About That Concrete Submarine

    If you've attended an "Old Salts" dinner in recent years, you've undoubtedly seen the picture of the concrete submarine on the rocks beneath our clubhouse deck. The circumstances of where it came from and how it got there seem to have been something of a mystery for many years. The sub was a 125-foot model of what the builder, Hal B. Hayes, had hoped would eventually become a 400-foot ...

  5. Concrete submarine

    The hull thickness of the concrete submarine yacht i am currently building is 34cm. You can drill in any concrete screw and it will hold. A epoxy fixation of 34 cm lenght as you describe will hold any doomsday event tension and pressure forces that destroy the tubing long before the bonding will break. So the whole connector discussion is a ...

  6. U-Boat Worx floats $25-million submersible superyacht

    It's still a pile of pretty pictures for now, but U-Boat Worx seems pretty gung-ho about building it rather than leaving it hanging in the concept stage like so many other submarine-yachts. At a ...

  7. concrete submarine yacht, the only safe offshore yacht, after draupner

    Jan 16, 2013 - Post Info, TOPIC: Draupner new year wave and its consequences for ... Concrete Floating Structures ... design" it is a basic design need - required for basic safety reasons. ... Submarine yachts, submarine tankers, submarine habitats ... be a "exotic approach to ocean colonization" but the only really feasible ...

  8. concrete submarine yacht, raw building

    concrete submarine yacht, concrete hull, submergible hull, underwater habitat, submarine habitat

  9. Concrete submarine

    concrete submarine yacht The concrete submarine discussion is at: http://www.boatdesign.net/forums/boat-design/submarine-yacht-project-13844.html

  10. Feasibility Study for Concrete Submarine

    A feasibility study was conducted by utilizing classical analysis techniques and state of the art construction methods. Prestressed concrete was found to be a viable material for shallow to medium depth submersibles. A replica of an existing steel-hulled submarine was used in the calculations to enable both economic and performance ...

  11. concretesubmarine.com/ FORUM

    Registered Members: 10,516 Topics: 28,732 Total Posts: 196,092 There are currently 7 member(s) and 39 guest(s) online: tidiw, pihexe5250, HUMMAD, mabina6563, leylahc53, kamran, dosikaw 6068 user(s) visited this forum in the past 24 hours The most users ever online at once was 26 member(s) and 65 guest(s) at 12:38pm Jan 29, 2024

  12. concrete submarine yacht, raw building, hull

    submarine yacht, concrete submarine yacht, submarine hull, private submarine yacht, personal submarine yacht, luxury submarine yacht

  13. Submarine Yacht project

    Concrete submarine yacht - hull without ballast and tower Concrete submarine yacht - hull with ballast machinery and tower Concrete submarine yacht - inside nice and dry no filtering no condensation . wellmer, Jan 23, 2007 #16. Joined: Sep 2006 Posts: 76 Likes: 5, Points: 0, Legacy Rep:-64

  14. affordable ocean colonization, yacht, forum

    affordable ocean colonization yacht council affordable ocean colonization yacht spotter affordable ocean colonization yacht club affordable ocean colonization yacht review affordable ocean colonization yacht discussion _____

  15. deep sea rescue mission concrete submarine yacht

    deep sea rescue mission concrete submarine yacht, deploy ROV from submarine, submerged salvage options, submarine habitat, underwater habitat, alluvial gold dredging from a submarine yacht. _____ admin. Guru. Status: Offline. Posts: 11015. Date: Oct 27, 2012. Permalink Reply ...

  16. PDF Illicit Nuclear Trafficking in the NIS: What's New? What's True?

    The pessimists argued that the amateur-ish "visible" nuclear black market that could be observed in the 1992-1995 period might be a poor and incomplete representation of a more sophisticated "invisible" nuclear black market.6. 1998-2001. Since 1998, a handful of new cases suggest that the "pessimists" have a point.

  17. Concrete submarine

    It is made of carbon fibre - has ambient pressure (no structural force) and weight about 120kg dry. Then add a pilot (80kg), 100kg in water ballast, and some lead ballast... -and sunk! It has one electric motor each side with rudders and invidual motor control. If interrested, I can send pictures. Arildo, Sep 26, 2008.

  18. concretesubmarine.com/ FORUM

    6462 user (s) visited this forum in the past 24 hours. The most users ever online at once was 26 member (s) and 65 guest (s) at 12:38pm Jan 29, 2024. ocean colonization, submarine yacht, concrete submarine yacht, seasteading, floating concrete honeycomb structures, floating concrete shell structures.

  19. Machine-Building Plant (Elemash)

    In 1954, Elemash began to produce fuel assemblies, including for the first nuclear power plant in the world, located in Obninsk. In 1959, the facility produced the fuel for the Soviet Union's first icebreaker. Its fuel assembly production became serial in 1965 and automated in 1982. 1. Today, Elemash is one of the largest TVEL nuclear fuel ...

  20. For the first time Rosatom Fuel Division supplied fresh nuclear fuel to

    21 April 2023 Rosatom obtained a license for the first land-based SMR in Russia. On April 21, Rosenergoatom obtained a license issued by Rostekhnadzor to construct the Yakutsk land-based SMR in the Ust-Yansky District of the Republic of Sakha (Yakutia).

  21. Concrete submarine project

    77. 11686. March 1st. by tyler26. STICKY: submarine yachts for sale, affordable ( 1 2 ) submarine yachts for sale affordable. (Preview) submarine yachts for sale, affordable We build concrete shell hulls at a general price of 331 Euro/cubic meter displacement.

  22. Stone, Paver & Concrete Contractors in Elektrostal'

    For the most part, people hire stonemasons or local concrete companies for large installations like driveways and walkways, or for home facades and exterior columns. These brick, stone or paver installations can add lots of functionality and visual curb appeal to the front of your Moscow Oblast home, as well as make a statement in the back.

  23. concretesubmarine.com/ FORUM

    6727 user (s) visited this forum in the past 24 hours. The most users ever online at once was 26 member (s) and 65 guest (s) at 12:38pm Jan 29, 2024. ocean colonization, submarine yacht, concrete submarine yacht, seasteading, floating concrete honeycomb structures, floating concrete shell structures.