Stability

Discuss stability issues and calculations, power and sail.

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  1. trapskiff

    Adding buoyancy roll reduction to monohull

    trapskiff, Apr 1, 2009
    Replies:
    9
    Views:
    9,023
    trapskiff
    Apr 3, 2009
  2. Captain Sunset

    too much weight for my solar powered pontoon styled boat

    Captain Sunset, Mar 5, 2019 ... 4 5 6
    Replies:
    76
    Views:
    8,975
    TANSL
    Mar 20, 2019
  3. Kneedeep

    IMS Stability Index

    Kneedeep, Mar 4, 2004
    Replies:
    1
    Views:
    8,900
    Dutch Peter
    Aug 18, 2004
  4. Keelboater

    Stability at Rest Improvement for 28 Bertram

    Keelboater, Apr 8, 2015 ... 2
    Replies:
    23
    Views:
    8,850
    Keelboater
    Apr 12, 2015
  5. curttampa

    Jon boat water ballast

    curttampa, Apr 6, 2020 ... 2 3
    Replies:
    39
    Views:
    8,842
    Mr Efficiency
    Apr 25, 2020
  6. waterbear

    Stability/Seakeeping of Deep V catamarans

    waterbear, May 3, 2019 ... 3 4 5
    Replies:
    60
    Views:
    8,823
    waterbear
    May 14, 2019
  7. Dibin_marino

    Exact definition of Draft Mark?

    Dibin_marino, Jul 14, 2014
    Replies:
    13
    Views:
    8,823
    TANSL
    Jul 16, 2014
  8. Rabah

    Calculation of the stability of a sailing yacht by ISO 12217-2

    Rabah, Mar 20, 2017
    Replies:
    9
    Views:
    8,789
    Rabah
    Apr 9, 2017
  9. tramyer

    Damage Stability tutorial for MAxsurf

    tramyer, Feb 22, 2015 ... 2
    Replies:
    18
    Views:
    8,758
    Dr34m3r
    Feb 25, 2015
  10. Adeyele

    How to derive KN value

    Adeyele, Aug 11, 2012
    Replies:
    4
    Views:
    8,753
    Adeyele
    Oct 23, 2012
  11. JohnMarc

    Weight distribution in design of boats

    JohnMarc, Oct 29, 2020 ... 2 3 4
    Replies:
    45
    Views:
    8,679
    JohnMarc
    Nov 4, 2020
  12. Adeyele

    How to calculate LCB and VCB using simpson's rule

    Adeyele, Jun 19, 2012
    Replies:
    4
    Views:
    8,659
    Adeyele
    Jun 20, 2012
  13. Tad

    Inclining Experiment - Back Against the Wall?

    Tad, Jul 30, 2015 ... 2
    Replies:
    23
    Views:
    8,623
    Heimfried
    Sep 5, 2016
  14. diegoperrera

    Static stability(Academic problem)

    diegoperrera, Oct 1, 2014 ... 3 4 5
    Replies:
    64
    Views:
    8,531
    sharpii2
    Oct 9, 2014
  15. hrdcor32

    Porpoise/Possible Trim Tab Problem

    hrdcor32, Jan 1, 2007
    Replies:
    11
    Views:
    8,497
    hrdcor32
    Mar 29, 2007
  16. jago

    capability of a semi displacement 12m boat

    jago, Nov 16, 2011 ... 2
    Replies:
    17
    Views:
    8,484
    WestVanHan
    Nov 23, 2011
  17. Rabah

    Hydrostatics and Intact Stability of tug 25m

    Rabah, Aug 19, 2015 ... 2
    Replies:
    23
    Views:
    8,450
    Rabah
    Aug 24, 2015
  18. nick_m

    LCF Calculation

    nick_m, Jul 12, 2011
    Replies:
    3
    Views:
    8,445
    ldigas
    Jul 12, 2011
  19. abalkees

    ballast draft

    abalkees, Feb 26, 2014
    Replies:
    4
    Views:
    8,274
    abalkees
    Mar 20, 2014
  20. ahighroad

    Calming down a J24

    ahighroad, Jul 8, 2009
    Replies:
    3
    Views:
    8,229
    PAR
    Jul 8, 2009
  21. Starholk

    Chine walk speedboat

    Starholk, Aug 27, 2019 ... 2
    Replies:
    26
    Views:
    8,228
    BlueBell
    Dec 21, 2019
  22. Floatything

    Trying to calculate Righting Moment

    Floatything, Feb 19, 2019
    Replies:
    3
    Views:
    8,204
    Ad Hoc
    Feb 20, 2019
  23. DCockey

    Planing on the Chine

    DCockey, Apr 30, 2011 ... 2
    Replies:
    18
    Views:
    8,152
    tom28571
    May 12, 2011
  24. JeffVDM

    Crane barge stability

    JeffVDM, Jan 1, 2019
    Replies:
    13
    Views:
    8,100
    sonnyofc
    Apr 27, 2019
  25. pavel915

    stability analysis by maxsurf, rhino , and archimedes!

    pavel915, Dec 5, 2006 ... 2
    Replies:
    16
    Views:
    8,078
    pavel915
    Aug 1, 2007
  26. Stephen Ditmore

    Sinkings off Lampedusa <continued>

    Stephen Ditmore, Apr 20, 2015 ... 2 3
    Replies:
    40
    Views:
    8,066
    Stephen Ditmore
    Jan 23, 2016
  27. athvas

    Lightship and deadweight

    athvas, Mar 9, 2013
    Replies:
    4
    Views:
    7,984
    TANSL
    Mar 9, 2013
  28. 7228sedan

    following sea

    7228sedan, Jun 11, 2010 ... 2
    Replies:
    25
    Views:
    7,968
    viking north
    Dec 14, 2010
  29. athvas

    IMO Weather Criterion (K-factor)

    athvas, May 29, 2013
    Replies:
    8
    Views:
    7,963
    athvas
    May 31, 2013
  30. manon

    Probabilistic damage stability

    manon, Oct 20, 2009
    Replies:
    11
    Views:
    7,898
    Bassoom
    Oct 17, 2010
  31. Hernandiz

    Single-person keelboat stability

    Hernandiz, Feb 9, 2009 ... 2
    Replies:
    27
    Views:
    7,879
    Paul B
    Feb 17, 2009
  32. chileflora

    Increasing seaworthiness for a 7 m. motorboat

    chileflora, Nov 30, 2018 ... 2 3
    Replies:
    43
    Views:
    7,876
    kapnD
    Jul 2, 2019
  33. Boston

    Best Shots Of Sailing Under Extreem Conditions

    Boston, Feb 4, 2010 ... 2 3
    Replies:
    42
    Views:
    7,874
    Landlubber
    Feb 18, 2010
  34. nimblemotors

    Weight Distribution

    nimblemotors, Feb 22, 2012 ... 2
    Replies:
    19
    Views:
    7,867
    mydauphin
    Feb 24, 2012
  35. dina
    Locked

    ratio (L/B)

    dina, Dec 13, 2011 ... 2 3
    Replies:
    42
    Views:
    7,864
    Boat Design Net Moderator
    Jan 2, 2012
  36. ed198

    Calculating KG

    ed198, Sep 24, 2018 ... 2
    Replies:
    25
    Views:
    7,838
    jehardiman
    Sep 27, 2018
  37. Tom Stewart

    Will a full length rail help?

    Tom Stewart, Sep 26, 2016 ... 2
    Replies:
    17
    Views:
    7,830
    gonzo
    Oct 28, 2019
  38. tranmkp

    Stability of small trawlers

    tranmkp, Feb 18, 2009
    Replies:
    7
    Views:
    7,781
    jehardiman
    Mar 26, 2009
  39. naserrishehri

    inclining test lightship vcg calculation

    naserrishehri, Nov 19, 2013
    Replies:
    11
    Views:
    7,757
    NavalSArtichoke
    Nov 21, 2013
  40. PlayTime

    16' Playtime Bowrider Leaning to left under power

    PlayTime, Jul 6, 2009
    Replies:
    6
    Views:
    7,738
    mwatts
    Sep 3, 2009
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