Indirect Towing Forces

Discussion in 'Stability' started by Baldict, Jan 7, 2020.

  1. Baldict
    Joined: Jan 2020
    Posts: 3
    Likes: 0, Points: 1
    Location: Dubai

    Baldict New Member

    Hi, everyone...
    Is their anyone who has an idea how to calculate indirect towing forces for ASD Tugs in relation to girting... What data to be consider on generating the forces...
    Your help is highly appreciated...
    Thank you so much...

    Baldict
     
    Baldict, Jan 7, 2020
    #1
  2. TANSL
    Joined: Sep 2011
    Posts: 7,380
    Likes: 708, Points: 123, Legacy Rep: 300
    Location: Spain

    TANSL Senior Member

    I enclose the 2 pages extracted from a software for naval architecture calculations User Guide, that deals with the heeling moments that are applied in the special case of tugboats, to study specific stability conditions of this type of ships. I don't know if this is what you are looking for, I hope so. Although it is in Spanish I think that, with the help of google translator, you can understand enough what it says.
     

    Attached Files:

    TANSL, Jan 7, 2020
    #2
  3. Ad Hoc
    Joined: Oct 2008
    Posts: 7,789
    Likes: 1,688, Points: 113, Legacy Rep: 2488
    Location: Japan

    Ad Hoc Naval Architect

    There is an updated MSC 415 (97) update circular related to towing and stability noted HERE ... which may assist you.

    Failing that, just buy the excellent book by Capt Hensen ‘Tug Use in Ports – A Practical Guide’ noted in this IMO circular.

    Or the US Navy Towing manual HERE.
     
    Ad Hoc, Jan 7, 2020
    #3
    bajansailor likes this.
  4. Baldict
    Joined: Jan 2020
    Posts: 3
    Likes: 0, Points: 1
    Location: Dubai

    Baldict New Member

    Thank you TANSL...
     
    Baldict, Jan 14, 2020
    #4
  5. Baldict
    Joined: Jan 2020
    Posts: 3
    Likes: 0, Points: 1
    Location: Dubai

    Baldict New Member

    Thank you Ad Hoc
     
    Baldict, Jan 14, 2020
    #5

  7. BlueBell
    Joined: May 2017
    Posts: 2,711
    Likes: 981, Points: 113
    Location: Victoria BC Canada

    BlueBell . . . _ _ _ . . . _ _ _

    Hey Baldic,

    Welcome to the forum.

    That's the first time I've heard it referred to as "girting".
    I've always known it as "girding".
    Turns out both are acceptable.

    Learn something new every day.

    Thanks
     
    BlueBell, Jan 17, 2020
    #6
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