What is a significance of a wing thickness

Discussion in 'Hydrodynamics and Aerodynamics' started by markmal, Nov 16, 2012.

  1. Erwan
    Joined: Oct 2005
    Posts: 366
    Likes: 15, Points: 18, Legacy Rep: 97
    Location: France

    Erwan Senior Member

    Petros,

    Regarding morphing wing section, you might be interested with the second vidéo of this link:
    http://www.p28foiler.com/mediatheque-2/

    Thank you all for this great discussion, I remain the benchwarmer, but I will continue scrutinizing your comments.

    Best regards

    EK
     
  2. Erwan
    Joined: Oct 2005
    Posts: 366
    Likes: 15, Points: 18, Legacy Rep: 97
    Location: France

    Erwan Senior Member

    Thank you Mr Speer for details regarding the mirroring process

    Best regards

    EK
     
  3. Petros
    Joined: Oct 2007
    Posts: 2,936
    Likes: 139, Points: 63, Legacy Rep: 1593
    Location: Arlington, WA-USA

    Petros Senior Member

    Erwan,

    Yes, I have seen that before, very interesting sail concept. I wonder how they control the shape. Also, it seems a bit thick as well.
     

  4. P Flados
    Joined: Oct 2010
    Posts: 601
    Likes: 33, Points: 28, Legacy Rep: 390
    Location: N Carolina

    P Flados Senior Member

    I am actually thinking the shape is pretty good and I have some ideas for the main flap hinge to keep it ok.

    If my plan A or B hinge do not work out, I have considered a "skin" attached to element 1 and free floating over the structure of the main flap. The "skin" would be thin fiberglass for the front 30% and then 1" wide strips with ribs integrated into the inside surface back to the rear hinge. The zone from say 45% chord to say 55% and then after 80% chord would also have 3" wide strip running lengthwise with internal integrated stringers. This would create big open rectangles between the ribs for plastic sheeting instead of fiberglass. The zone from 45% to 55% would rely on flexing of the fiberglass skin to give a smooth transition at the first hinge line. The rear edge would overlap the structural piece at the back of the main flap.

    All of the above sounds great, but my bigger concern right now is getting a good smooth light weight surface that will hold shape for the first 30% of chord. I do not want to resort to a full length mold and I do not want to do a vacuum layup with inner and outer fiberglass over foam core. I have some ideas but I need to do some prototype work in the garage after it warms up some.
     
Loading...
Similar Threads
  1. schakel
    Replies:
    4
    Views:
    470
  2. WSW2016
    Replies:
    17
    Views:
    1,526
  3. Surfer Naval Architect
    Replies:
    6
    Views:
    1,223
  4. Wally2
    Replies:
    3
    Views:
    733
  5. pmudesign
    Replies:
    14
    Views:
    964
  6. Will Fraser
    Replies:
    12
    Views:
    1,751
  7. schakel
    Replies:
    3
    Views:
    1,270
  8. Roelina
    Replies:
    2
    Views:
    1,665
  9. mtumut
    Replies:
    17
    Views:
    2,141
  10. mtumut
    Replies:
    4
    Views:
    1,239
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.