Page 1 of 3 123 LastLast
Results 1 to 8 of 19

Thread: New blades design - custom made from BUFOcraft

  1. #1
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2007
    Posts
    0

    Default New blades design - custom made from BUFOcraft

    Like it or not we did it, and we will test them in Sweden in August...







    More pictures at gallerie at http://www.bufocraft.net/HCGB/blades/

  2. #2
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Mar 2006
    Posts
    0

    Default Re: New blades design - custom made from BUFOcraft

    Just to check that you are aware that they have to be load tested etc and approved for use by the WHF?

  3. #3
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2007
    Posts
    0

    Default Re: New blades design - custom made from BUFOcraft

    We can run them at 137 m/s, but not more...



    p.s. blades are much stronger as hascon wing blades or multi wing, our blades dont twist, they are aerodinamics designed (complete blade) and can go no problems to higher tip speed, but unfortunatly is not alowed to turn them faster for the race.

  4. #4
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2008
    Posts
    0

    Default Re: New blades design - custom made from BUFOcraft

    I think what Lou is saying is that the blades will need testing by the officials/club/whf(?) before you can use them at any race meeting.



    If you don;t get them tested befor ethe event, you won;t be using them AT the event.

  5. #5
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2006
    Posts
    0

    Default Re: New blades design - custom made from BUFOcraft

    1 step forward 2 steps back! are they really machined from wood?



    what is the weight comparison between your blade and a mulitwing blade?

  6. #6
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2007
    Posts
    0

    Default Re: New blades design - custom made from BUFOcraft

    <table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText">Quote&#58;</td></tr><tr><td class="quote">
    are they really machined from wood?
    </td></tr></table>

    I hope you don't think we paint the hascon wing blades in grey

    Our blades are designed by one of our friend - hydrodinamic expert and aerodynamic expert by special 3D program with software simulations, for optimum operating at speed range 40 - 100 km/h.



    They are made of same material as airplane probellers. I am noot wooden expert, so I do not know exactly witch. Wood is is glued by segments with epoxie, simular as plywood.

    After shape was cut on CNC tooling (so yes they are machined from wood), the blades were exposed to poxies for several hours under pressure of 8 bars so most of wood cells is filled with epoxie.

    Blade construction is sort of epoxie in sandwich with plywood. Hard to describe. Blades are realy incredebly strong. I was surprised as well when I got them.

    Pictures from above are not finished product yet, finalization work and paint protection is missing, we will use polywretane transparent paint so structure stays visible and keeps the look of the wood.



    Realy lot of hand work left , but once is done, it will look crazy.



    <table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText">Quote&#58;</td></tr><tr><td class="quote">
    what is the weight comparison between your blade and a mulitwing blade?
    </td></tr></table>

    Comparing the wooden blade to hascon, the wooden is ofcourse a bit heavier (not much), mostly because of larger Volumen, becuase it has different aerodynamics as hascon or multiwing. Ofcourse we can manufacture same blade in carbone version in sandwich with polywretane foam, in that case we get same shape in lighter version as any blade. But carbon is not alowed at WHC as much as I know.



    Any whay our aim is NOT to have advantage on the race because of better blades, but we come to show what we can make And wooden blades are just optional impeller on our recreational hovercraft - custom impeller and is also very interesting for the eyes.

  7. #7
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2006
    Posts
    0

    Default Re: New blades design - custom made from BUFOcraft

    Quote Originally Posted by bufo


    Realy lot of hand work left , but once is done, it will look crazy.



    Can't see the point personally.





    Quote Originally Posted by bufo
    Any whay our aim is NOT to have advantage on the race because of better blades



    I don't think you will, but we won't know unless you get them tested and race them.




  8. #8
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2007
    Posts
    0

    Default Re: New blades design - custom made from BUFOcraft



    <table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText">Quote:</td></tr><tr><td class="quote">
    Can't see the point personally.
    </td></tr></table>



    It is the matter of taste ofcourse.



    Beside better efficiency and much lower nosie level, and if we turn them the same rpm as hascon or multy we get out more thrust at same HP... I do not see the point neither - when ther hascon and multiwing exist already, why other should develop new blades... waste of time I gues...




Similar Threads

  1. Number of Fan Blades in 900mm Integrated Design
    By CrazyKiwi - n/a in forum General Forum
    Replies: 6
    Last Post: 17-Feb-09, 01:49 PM
  2. Replies: 0
    Last Post: 17-Oct-07, 02:39 PM
  3. fan blades
    By peterd51 - n/a in forum General Forum
    Replies: 0
    Last Post: 25-Jun-07, 12:48 PM
  4. Blades for free
    By pest619 - n/a in forum Hovercraft stuff for sale!
    Replies: 0
    Last Post: 23-Jun-07, 01:01 PM
  5. 5 blades or six
    By mick - n/a in forum General Forum
    Replies: 6
    Last Post: 19-Jun-06, 10:21 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •