01 Oct

Update on the UC3 Project (November 2005)

One grey afternoon in October I set course for an old shipyard in central Copenhagen. Having just finished a complete day of work I was somewhat tired, but what I was about to see would wake me right up!
Outside the old building is Kraka waiting for a new engine. You can see the hole in her side:

Having sailed with Freya, Kraka looks rather big with her 10 meters compared to Freyas 5m.  I stepped inside the shop and a giant tube met my eyes. WOW…this is huge!

This is an overview of the subs design:

From the front:

  1. Controlroom with access to the tower
  2. The messhall with bunks and kitchen
  3. The deckaccess (Main access to the sub)
  4. The bathroom
  5. Engine room

Looking at this drawing and looking at the tube they are working on now, makes me realize that the finished result will be almost twice as long! What iv been shown is only the 5 compartments. That’s leaves the entire bow and stern!

The subs is at this point made from the same tubes and the tower of windmills. This makes it a VERY solid shape.

We have a long talk about how metalt respond to force, the ideas he has with the sub and its features.

Now lets look inside the sub…This is look in from the engine room:

Stepping into the engineroom I can look at the section for the bathroom and where the main deckentrance will be. You can see some closed sections. That’s the fuel bunkers.

Here you can see the closed sections. Peter gives you an idea of this subs size!

Stepping through the bathroom and the main deckentrace I move into the messhall. Here I look into the controlroom is on the other side of the bulkhead.

We have a long talk about the design of the sub, how he shapes materials and the way steel acts under force. It actually gets somewhat stronger when bent out of shape, but only to a certain point.

In the beginning of the design phase they wanted to make a WWII type sub like Kraka, but there’s a lot of work in giving the sub that classic WWII shape because you have both a pressure hull and outside plating to shape.

With a Nuclear type shape, you only need a long round tube and you will have most of it done.

The shape of a WWII sub makes it fast on the surface, but slow when dived.

A Nuclear sub is slow on the surface and fast when dived.

UC3 will have a snorkel for the engines, so at snorkel depth it will go app. 10 knots, but on the surface it will only go 7 knots due to the greater resistance.

This is the engine design:

There is actually 2 diesels. The big one (1) connected to the driveshaft(2) and the smaller one(3) is connected to the compressor (4) and generator (5).
The generator is connected to the batteries (6).
The electric engine(7) is connected to the batteries and the driveshaft.



The max depth is set a 100m, but theoretic max is at 500m!

Fuel is stored the tanks at the main deck entrance as shown in the pictures.

Ballast tanks are located at the front and back and will be divided into sections to give greater control over the boats position in the water.

A lot of the pipes for the ballast tanks and such will not run through the boat on the inside, but outside on the top. This gives more space inside and gives better access from the outside.

This sub will not have a conning tower since a conning tower is pressurized. IE there will be water inside the tower when this sub submerges.

Following in the tradition of nukes, the sub will be all black 🙂

Its expected to be put in the water in app. 1 year.

A last look before I leave…

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– Submarines & Rockets…do they mix?!