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Re: [PSUBS-MAILIST] Construction work on 20 boat in Copenhagen,



Hi Carsten,

Since your visit here at CSC 2006 much have happen. But no pictures are available. When UC-3 emerges from the hanger I will post some - but I would like it to be a surprise. I do promise you and all other psubers that we will try to make a good functional and beautiful submarine.

As for the cost of Kraka I would like you to tell me what is right - since I don´t know - even if you are not planning to bye her. You have sailed Kraka - much too little I think - but still unlike most others.

Back in 2003 Freya was for sale on Psubs - and while the boat was not sold - it gave a lot of feed back and a lot of good contacts. E.g. to Anders from Sweden who later build the very nice boat Marlen - after diving Freya and taking many pictures. Anders is six feet tall - so he needed a bigger boat...than Freya.

Regards,

Peter Madsen







----- Original Message ----- From: <MerlinSub@t-online.de>
To: <personal_submersibles@psubs.org>
Sent: Thursday, April 12, 2007 10:04 PM
Subject: Re: [PSUBS-MAILIST] Construction work on 20 boat in Copenhagen,


Hi Peter - anywere update pictures of UC3 ?
A sub with internet conection..

And how much for Kraka ? :-)

Now also in English : www.euronaut.org

Best regards Carsten - Sub at 53° 10' 37,80 N  8° 33' 48,80 E


"Peter Madsen" <peter@submarines.dk> schrieb:
Dear Psubbers,


Some say the best advice you can give to someone that talks about building his own submarine is - make it big - as big as you possibly can. Many of the problems that are encountered in construction of small psubs are related to the lack of space - and the bad conditions work most be done in. During my work on Freya back in 2001 I used to say the boat had an inbuilt torture chamber - the cramped engine room. This was not completely wrong.

By 2005 construction of a full size boat to follow the Kraka started. Unlike the two first boats we this time chose to work in a 2 meter diameter pressure format - just enough to make stand up room - and to design for 100 meter or 300 feet operational dive depth. Total length of the ship would be just under 20 meters and she would be designed with fuel capacity and room for supplies to cross the North Atlantic. The boat has twin diesels, a five bladed propeller - and a sail that will place the crew four meters above the sea when crusing surfaced. The challenge to build this with in the economic frame available is formidable - but
not imposible.

One of the problems that faces a psubs designer is how to look out of the ship - how to build windows or acrylic domes that are safe and placed in a practical way ?

Freya featured windows I her front dome - a design that proved dangerous since she flooded sank in 2003 after a minor coalition. Kraka features two windows in the front torpedo tunnel - this is nice but give a fairly complex shape of the bow - but the smart use of the torpedo openings in her Type VIIC hull shape protects the windows very well.

So windows are difficult to place and always potentially dangerous spots - Mr. Standfuss / CSSX has taken the radical decision to cut all windows and use cameras only. This is smart, but its sad you only see things on TV in pal or NTSC resolution. On our boat no. 3 - designated UC3 - we combine windows - though only in the side of the ship - and high definition cameras - one in the photo optic mast and one just under the bow. Today TV and flatscreen camaras with a resolution og 1080 times 1700 pixels are avalible at amateur prize - and it give awesome
beutiful sharp pictures in the controlroom

UC-3 is well into construction by spring 2007 and is expected to launch part finished in 2008. We changed the design drastically after a 2004 meeting with Mr. Standfuss - and using a smarter simpler concept we now have a finished pressure hull, with deckcasing. Construction of ballaststanks are underway. Drawings seen on Mr. Peter Blazejewicz home page is from before this meeting - and have been modified and moderniced ( semi USS Albacore hull form ) to allow faster construction. Mr. Blazejewicz is a very important participant in the construction process - and has been that since the very start.

The construction of her is the direct reason you will find that the Kraka is for sale - since we expect to focus on sailing the 20 meter boat with a kitchen and a shower rather than the 12.6 meter boat with no kitchen or shower. However - sailing a small boat is always fun in a different way - and perhaps sometime after UC-3 a new deep diving midget may start life in Copenhagen, Denmark.

Regards Peter Madsen


This message was sent from the controlroom of the submarine UC-3 via her radiomast.



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