Cascade Ultralights Kasperwing

Discussion in 'The light stuff area' started by jedi, Nov 10, 2017.

  1. jedi

    jedi Well-Known Member

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    I am working with an energetic pilot new to the Seattle area who wants to learn more about the history of this design, particuarly the operations on floats. Comment here or PM with a name and phone number.
    Is that Thor or Steve in the Lake Washington float vidieo?
    is the two place near Lake Tapps still available?
    Price field phone contact?
    Thanks.
     
  2. Aesquire

    Aesquire Well-Known Member

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  3. henryk

    henryk Well-Known Member

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  4. henryk

    henryk Well-Known Member

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  5. henryk

    henryk Well-Known Member

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  6. henryk

    henryk Well-Known Member

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    ^23F0A3406FBFD53319250A19E78BD2C14933F0074544258410^pimgpsh_fullsize_distr.jpg
    ^E17F41FA2D13DCA2E2CEED615871F91B99257DBEB083277D03^pimgpsh_fullsize_distr.jpg


    +SECOND CHANTZ air pessure recovery system...
    ^643A111D35E056933B8803C6298B376CC29FC74F3830E2A850^pimgpsh_fullsize_distr.jpg
     
  7. henryk

    henryk Well-Known Member

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  8. henryk

    henryk Well-Known Member

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  9. henryk

    henryk Well-Known Member

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  10. henryk

    henryk Well-Known Member

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    jedi likes this.
  11. henryk

    henryk Well-Known Member

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  12. henryk

    henryk Well-Known Member

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    IMG_20171218_160612019.jpg

    IMG_20171219_124709075.jpg

    =double power...circa 100 kW (VTOL !)
     
  13. henryk

    henryk Well-Known Member

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  14. Aesquire

    Aesquire Well-Known Member

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    If you do find a source for plans, let us know. A Kasperwing is on my short list to build.

    A local guy had one, and it was a great flyer, if a bit over hyped. The control system was easy for a hang glider pilot to adapt to, ( weight shift in pitch ) and although I never flew it, it seemed pretty solidly made. ( the wing structural design was adapted from the proven Fledgling hang glider/Pterodactyl Ultralight, but has different control setups than either, and very different wing tip/rudder design. )

    The pilot reported that the "vortex mode" with both rudders deployed and in a vertical descent was stable and not hard to do, but had too high a sink rate for safe landing. Basically a stall with big vortexes providing lift, and rudder control for turns, it didn't take much altitude to recover from to normal flight.

    Not exactly a speed demon, if one ever saw 100 mph it was in a trailer towed by a lunatic. But with that you get low take off and landing speeds. Compared to other pt 103 aircraft, it's pretty good overall. I suspect it's lack or more popularity is the unusual control system.
     
  15. henryk

    henryk Well-Known Member

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    "I have owned, built and flown a Kasperwing UL.

    I have done the "vertical mush" many times.
    The wingtips are very effective as are the rudders. The response of this wing in all ways is slow and predictable. Not what you'd expect from a tailess aircraft. It can be flown at 18mph in full control w/o tip stalling and as I recall there is no washout. Most vertical mushing is done w some fwd speed probably 7 or so mph. Vertical sink rate I think was about 500fpm while flying normally at 18mph was about 200fpm.

    Personally I think the airfoil and extended airfoil at the wingtip holds the best posibility for sailboat design. The airfoil is very stable and would be easy to control as a wing for the boat. But it's a single surface wing and would only function with the wind coming from one side of the boat. The airfoil does not work with a negative angle of attack. So I don't see any way to use Kaspers UL aircraft wing for a sail on a boat.

    Easy Rider, May 5, 2016 "
     
  16. henryk

    henryk Well-Known Member

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    BTW=auer "green" KASPERWING was flying stable at 5 m/s horisontal speed (iddle) !

    ^F8C4FF1845A26B36D20329E039FF7D772A11F39CE5DC1A8EDA^pimgpsh_fullsize_distr.jpg

    -its a pity, the ECOND SCHANTZ system is not intalled and aprooved...

    ^643A111D35E056933B8803C6298B376CC29FC74F3830E2A850^pimgpsh_fullsize_distr.jpg
     
  17. henryk

    henryk Well-Known Member

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  18. henryk

    henryk Well-Known Member

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  19. Highflight

    Highflight Well-Known Member

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    Hello,

    No plans were ever published or distributed for the Kasperwing Ultralight, with Steve Grossruck's passing I doubt any plans will ever be published. There was a
    "shop manual" provided with each of the ultralight kits produced. Scott Price is the pilot flying the float equipped Kasperwing ultralight from Lake Washington in
    the promotional video narrated by Steve. It should be noted that the float kit was for a stock Kasperwing with a 250cc motor, longer floats with more floatation aft would be required
    to operate the plane with a larger/heavier engine. The floats were produced in Aberdeen, WA. the manufacturer is retired, occasionally a set is offered for sale with a
    used Kasperwing. The float system worked very well, takeoff run was astonishingly short due to the lift of the airfoil spray deck/wing.
    Scott, Steve and I agreed, a Kasperwing on floats is some of if not the best flying we ever experienced.
     
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  20. henryk

    henryk Well-Known Member

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    https://s3-us-west-2.amazonaws.com/usedphotosna/66828477_614.jpg

    https://www.youtube.com/watch?v=sQixcsaAdIc

    =thanks possibility of high AoA (>30 deg.) on float start the vortex flow occures with huge Cl =short time and distance take off is possible!
     

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