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SoutherlyBuster

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SoutherlyBuster last won the day on November 5 2018

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About SoutherlyBuster

  • Rank
    posting Maniac

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  • Location
    Christchurch, New Zealand
  • Interests
    Kitesurfing, landboarding down hill or with kite, RC gliders, skate boards.

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  1. SoutherlyBuster

    The things you find at jaycar

    somone was watching too much Dr Who. “Designed to work hand in hand with a small nuclear reactor or other suitable power source, the flux capacitor is capable of opening up a hole in the fabric of space time allowing transportation to a user defined point in the past or future.” ... $200,000.00 Great find Andt666.
  2. SoutherlyBuster

    Théo de Ramecourt Strapless Loops!

    good riding skills, every time I go riding strapless in big winds in the surf, invariably the board gets left behind on the water and I go vertical as I go over the waves . I just save the strapless days for ultra light wind days.
  3. SoutherlyBuster

    Ozone Explore

    Ya just ask the kiters at Stockton Beach, NSW, Australia. On long weekends the beach is a like a scene from a Max Scene due to cars being allowed on the beach. Then the rangers tell the kiters to go away from the beach and or the dunes. Go figure.
  4. SoutherlyBuster

    Someone giving his new(2nd hand) Chrono a fly

    noyce!
  5. SoutherlyBuster

    Acoustic and live performances

    No practice session, sound check, then just improvise, brilliant.
  6. SoutherlyBuster

    Foil board for next Olympics

    Now this will be interesting to watch, Foil Kites with Foil Boards now accepted as event in 2024 Paris Olympics, see https://www.iksurfmag.com/kitesurfing-news/2018/11/world-sailing-agm-confirms-kiteboarding-for-the-paris-2024-olympic-games/ Sorry LEI fans, no LEI’s permitted Will be an open class.
  7. SoutherlyBuster

    SOLD Trampa mountainboard

    Looks like MBS Trucks, but the deck looks like a custom, I am thining more like a Trampa rather than MBS board, MBS’s usually come with shinny ripple free decks with a picture on it rather than the raw out of the mould finish.
  8. SoutherlyBuster

    Hello. newbie Q bout depower kites-

    Jumping with an 8m^2 depower, DON’T, not yet any way. At this size the kites are very responsive and typically the winds needed to boost you off the ground for this size kite are big winds and tend to be gusty — all translates into unpredictable, you go up quick and come down hard. I would probably go for a 10 m^2 depower as the first depower, winds will be lighter right for it, safer for you and boosting will be better. Don’t worry about boosting until you are total comfortable with your kite and landboard. If using handles with your fixed briddle, rig up a strop, ie rope between your handle ends which hooks into your harness, this takes the load off your arms. Bar systems to make fixed briddle systems into “like” depower are ok, my son used the ozone turbo bar, they are nice, but if you are on a budget and really have in mind a true depower kite, then a strop is a better option.
  9. SoutherlyBuster

    The next big thing?

    Difference between this and and LEI? Small diameter pressurized hosing? Advantages? Not much said about the design in the video. Oh sorry just looked at the web page link provided, ya cool.
  10. SoutherlyBuster

    Night Buggy

    My son and and and I did some night flights on the clay pan at Kingston, great fun, all the wind gusts had dissapeared, very steady wind and the moon was out. Just had to remember where the nasty obstacles are.
  11. SoutherlyBuster

    eBay & Gumtree Finds

    Sounds like a buggy engine to me brm brm ... post some pics as you run down the salt pan with them. You’ve got a bit of kiting history there, good buy.
  12. SoutherlyBuster

    Super Tracks - video

    @RedSky sorry to hear that your GoPro Fusion lens got ruined. I guess I have always taken it for granted that the GoPros have a protective shell protecting the lens. Just googled it for the Fusion and see there is nothing for it due to the 360 degree field of view, argggg! Saw a Chineese made case for it, don’t know if that wrecks the 360 view. Sounds a like a poor design choice for an action cam targeted at extreme sports.
  13. SoutherlyBuster

    Naish Foil Board

    Depth, ah right the p=density x depth x g. For the mast can be important but I doubt important for whistling. Where is the whistling coming from? Well in my opinion, it is not just from one thing. Think of it like a guitar or violin, the sounds come from the vibrating string (our vortex sheet coming off the foilig trailing edge), the vibrations then get transfered to something which amplifies (the wing to mast to the board) the sound, then eventually to something that creates air pressure waves so we can hear it. If the vibrations were solely confined to the water, I doubt we would hear it. To amplify the vibrations, you need to tune the natural frequency of your strucutre to match the forced vibrations, hence why same foils with different mast/board some sing, some don’t. Ever pick a guitar and notice the sound rings nicely and others just sound dull? It is all about getting that resonnance right in the structure of the body and for guitars and violins the air space since it has it’s own set of natural frequencies.
  14. SoutherlyBuster

    Naish Foil Board

    Vertical or horizontal makes no difference as gravity makes no difference here on the formation of the vorticies, and it is the vorticy formation alternating between either side of the foil that causes the vibration. Surfaces being further apart, yes agree. I thought about this too, there must be some sizing effect going on. If you zoom in close enough there will always be a blunt end of the trailing edge. I suspect the characteristic length would be the boundary layer thickness. I expect the above article was an A to B comparison, same foil size, just alter the taper angle. So at some point a blunt end would make no noticable difference. Agree some of these sharp edges look nasty for rider safety. Reckon the blunt hard trailing edge plus the relatively soft tape I used is a good solution, just a mater of find tape that lasts long enough. Helicopters use a special tape for the leading edge for abrasion resistence ... hmmm. Yes the tape was double backed onto itself to creat a thinner trailing edge. At the moment I am thinking, don’t mess with the foil, just use tape, main motovation is rider safety against cuts. The tape lasted well for one session, will see how long it lasts. Longer term solutions would be tapes with heat activated glue applied to the resin coating. I suspect if the foil wing and mast were made of a very heavy highly damped material with zero vibration transmision you would not hear the wistling. Apart from the very low frequency vibrations that one would definitely feel through your feet, the high pitched frequnecies may be more noticable depending on the stiffness and mass of the mast and board, if the whistling frequency excites one of the natural frequencies of the mast and board, then it would be clearly audible, like a sounding board of a piano.
  15. SoutherlyBuster

    Naish Foil Board

    I applied some tape to the trailing edge starting on the top side level out extending beyond the trailing edge by about 2mm fold over and stick to the bottom surface of the foil. Humming gone (which I could hear and feel). The tape is very sticky, I use it for reinforcing my foam gliders, sticks like sh@#$/ $# on a blanket. Did not come off during the light wind session 6.6 to 9 knot wind with 18m FlySurfer Lotus.
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