Ventilated Bilge Keels

Discussion in 'Boat Design' started by Steelfloats, Oct 27, 2012.

  1. Steelfloats
    Joined: Feb 2008
    Posts: 5
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: usa

    Steelfloats Junior Member

    While researching bilge keels in the archives, I came across this thread regarding ventilated bilge keels:

    http://www.boatdesign.net/forums/boat-design/long-bilge-keels-6998.html

    Seems that ventilating bilge keels will provide more roll dampenning. That got me thinking about foil (asymmetrical) bilge keels. Since the purpose of a foil keel is to provide lift, if you ventilated it, wouldn't the pressure differential on either side of the foil cause the foil to stall as the water flowed through the keel due to the deltaP? If this is correct, does it follow that it only makes sense to ventilate symmetrical keels? Thx in advance. And thx to everyone who contributed to all those interesting threads in the archives about bilge keels. I'm learning a lot.
     
    Steelfloats, Oct 27, 2012
    #1
Loading...
Similar Threads
  1. Mat-C

    Ventilated Battery compartment for AGM's?

    Mat-C, May 9, 2012, in forum: Boat Design
    Replies:
    5
    Views:
    2,605
    BertKu
    May 11, 2012
  2. Kraftzion

    Air ventilated planing hull design

    Kraftzion, Jun 11, 2011, in forum: Boat Design
    Replies:
    25
    Views:
    11,184
    Kestrel
    Jun 19, 2012
  3. Darkzillicon

    Location of Thru-Hull on Shallow Bilge

    Darkzillicon, Sep 12, 2023, in forum: Boat Design
    Replies:
    10
    Views:
    983
    fallguy
    Sep 13, 2023
  4. Asa Hammond

    42 foot steel round bilge sailboat scantlings

    Asa Hammond, Feb 16, 2023, in forum: Boat Design
    Replies:
    20
    Views:
    2,051
    jpazzz
    Mar 15, 2023
  5. Cedric Oberman

    Bilge keel wing-section lift.

    Cedric Oberman, Jun 4, 2022, in forum: Boat Design
    Replies:
    14
    Views:
    2,060
    Skyak
    Jun 12, 2022
  6. alp gulden

    Can I have Shallow keel and bilge keel together.

    alp gulden, Dec 14, 2020, in forum: Boat Design
    Replies:
    9
    Views:
    2,167
    Rumars
    Dec 15, 2020
  7. rbkepler

    Stitch & Glue design from round bilge boat design.

    rbkepler, Jul 25, 2020, in forum: Boat Design
    Replies:
    7
    Views:
    2,131
    bajansailor
    Jul 26, 2020
  8. izaac

    keel and flat bottom vs round bilge

    izaac, Jun 12, 2020, in forum: Boat Design
    Replies:
    15
    Views:
    5,247
    Ad Hoc
    Dec 10, 2020
  9. thenavalarch

    New Product: Round Bilge Hull Resistance Method Selector

    thenavalarch, Feb 25, 2020, in forum: Boat Design
    Replies:
    1
    Views:
    1,742
    Alik
    Feb 26, 2020
  10. Cmw505

    manual bilge pump on top of automatic

    Cmw505, Aug 8, 2019, in forum: Boat Design
    Replies:
    5
    Views:
    1,329
    portacruise
    Aug 12, 2019
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.