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63 posters

    Icebreakers

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    mnztr


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    Icebreakers - Page 24 Empty Re: Icebreakers

    Post  mnztr Fri Jun 16, 2023 1:53 am

    GarryB wrote:
    Why was a Ukrainian company contracted in 2020? was that not a bad risk since 2014?

    If they did I would say it was because there was no alternative at the time and the time it would take to develop a Russian alternative would have delayed the project?

    Its quite common. all ships have heat exchangers. Quite common for some ships designed for the atlantic to have to slow down in certain warm conditions.

    I am not a ship expert but apart from these faulty British Destroyers I have not heard of that happening before.

    The engines actually failed after operating in the Med because the water was not cool enough to keep the engine operating normally... a serious design flaw.

    For most ships I would say a refrigeration unit could be used for cooling water as needed and of course food storage would need freezers to be carried on board too, so it should not be a problem on a well designed ship.

    All you need is large enough heat exchangers for the situation. Temps are monitored closely and they control the flow to the heat exchangers to keep the coolant at optimum temp. If the temps are high even at max flow, then they slow down . A compelete shutdown should is either design or crew incompetence. The problem was most likely with the AC plant as I think those ships are gas turbine powered and those are air cooled. could also have been cruising on diesel gensets.
    GarryB
    GarryB


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    Icebreakers - Page 24 Empty Re: Icebreakers

    Post  GarryB Fri Jun 16, 2023 8:27 am

    It was described as a fundamental design flaw, but OT for this thread.
    Scorpius
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    Icebreakers - Page 24 Empty Re: Icebreakers

    Post  Scorpius Sat Jun 17, 2023 1:38 pm

    Icebreakers - Page 24 Image
    the state of construction of the icebreaker "Leader" hull for today

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    kommer2016
    kommer2016


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    Post  kommer2016 Sun Aug 20, 2023 2:43 pm

    very interesting thread , is there any updates on icebreakers in build ? i hear of the very large one ...Leader...being built at Zevdza.
    Hole
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    Icebreakers - Page 24 Empty Re: Icebreakers

    Post  Hole Mon Oct 16, 2023 11:50 am

    Icebreakers - Page 24 32325510

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    kommer2016
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    Post  kommer2016 Wed Oct 18, 2023 2:29 pm

    nice pic.
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    Arrow


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    Icebreakers - Page 24 Empty Re: Icebreakers

    Post  Arrow Sun Oct 29, 2023 11:14 pm

    kommer2016 and Hole like this post

    lancelot
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    Post  lancelot Sun Nov 12, 2023 9:08 pm

    Video about the design of the Leader icebreaker translated to English.

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    mnztr


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    Icebreakers - Page 24 Empty Re: Icebreakers

    Post  mnztr Tue Nov 14, 2023 1:59 am

    The Lider class vid explains a lot. Including why only 1 will first be built. What Russia is doing is essentially investsting 1.7B to see if they can create a Suez Canal alternative. Of course with 1 ship winter capacity will be limited at some time, but if there is demand 2 more will be built. With the Arktika fleet, this is really a historic achievement. The Leider is utterly mindblowing. it can make over 10 knots in 6ft ice !! That is INSANE!!

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