Cascade Ultralights Kasperwing

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

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  1. Jun 25, 2018 #81

    Highflight

    Highflight

    Highflight

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  2. Jun 25, 2018 #82

    henryk

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  3. Jul 7, 2018 #83

    henryk

    henryk

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    Last edited: Jul 7, 2018
  4. Jul 8, 2018 #84

    Highflight

    Highflight

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    Henryk,

    We do not use the BRS or reserve parachutes on out Kasperwijgs, most of our flying is at low altitude where a parachute would be of little value. I agree, the rear mounting would be preferable but would interfere with the fuel tank in some models.
     
  5. Jul 8, 2018 #85

    henryk

    henryk

    henryk

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    -yes,orginal KASPERWING tank =too big...

    =solution=a part of chute tank can be upon trailing age of sail,racket mounted to the
    kingpost,rear site.

    -we are interesting in MUSH REGIME investigation...

    https://i.pinimg.com/736x/15/b1/c5/15b1c5924a4ab67a89d9da2119e24bb2--tim-beta-gliders.jpg
     
  6. Jul 8, 2018 #86

    Highflight

    Highflight

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    Henryk,

    Steve found that it was not possible to do a vertical mush with the Rotax 503 engine at idle setting as it still produced too much thrust. He was able to achieve vertical decent with the engine turned off, sometimes he would do a restart other times he would transition to a glide and land.
     
  7. Jul 8, 2018 #87

    henryk

    henryk

    henryk

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    -do You know,how many time He was made this manouver ?

    (Joe -JBIRD-say about many time mush fly !? )

    BTW=we are construct COUNTERROTATING propeller

    thruster=moore thrust from the same motor (ZONEAH)...
     
  8. Jul 9, 2018 #88

    Highflight

    Highflight

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    Steve did the mush as regular part of his KW flight demonstration or just to amaze onlookers. A very few other KW pilots also did the mush, it isn't that popular a maneuver with most KW owners. I remember it is being very strange and unnatural not to have forward airspeed while "flying", I did not enjoy the experience, like descending in a small parachute. Steve had very good directional control while in the mush and would make shallow turns to the left and right while descending vertically. When he demonstrated the mush at the Oshkosh fly-in Steve was grounded by terrified officials who did not approve of any stunt flying with ultralight aircraft fearing it would become a contest between pilot to impress the crowd. Entering the mush requires the pilot to fly as slow just above stall, then move as far aft in the frame as possible, Steve would crouch on the frame tubes with his back against the rear (gas tank). It should also be noted that this maneuver should only be attempted in stable air.

    Counterrotating propellers are is a very interesting project, keep us informed on your progress.
     
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  9. Jul 10, 2018 #89

    henryk

    henryk

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    -greate thanks for info!

    -at first we are made counterrotating gear for 100 HP G16 motor,
    after examination=for 20 HP motors (ZONEAH)=Fi 80x80 mm.
     
  10. Jul 14, 2018 #90

    henryk

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  11. Jul 14, 2018 #91

    Highflight

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    Henyrk,

    High rpm, engines require a huge PSRU, to reduce prop tip speed. I also am not in favor of single cylinder motors, I prefer twin cylinders for smoother engine operation. If more power is required, consider a Rotax 670 it is a bit heavier but will last much longer.

    BlackFly by Google cofounder Larry Page, the future of ultralights?
    https://www.youtube.com/watch?v=FI8AemQcclY
     
  12. Jul 14, 2018 #92

    henryk

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    -in auer CR gear we have from 15000 rpm 2x5000 propellers rpm...

    or 2x2000 from 6000 rpm motor.

    BTW=we must multiplay ZENOAH 6 k RPM x1.5=9000 rpm! (2x 3000 propellers rpm)

    BLACKFLY is reasonable construction,
    much better als classic multicopters are...

    but it is a big problem=no thrust,NO lift ! (BRS >30m...)
     
    Last edited: Jul 14, 2018
  13. Aug 16, 2018 #93

    henryk

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  14. Aug 16, 2018 #94

    Highflight

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    One large prop is usually more efficent than two small props. We have never noted any prop touque with any of or Kasperwings.
     
  15. Aug 16, 2018 #95

    Doggzilla

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    As soon as I saw the word "Kasper" I knew I would be seeing HenryK very quickly.

    They should start teaching spies about the Kasperwing. Anytime they need help all they have to do is say that word and HenryK will burst through the wall like the Kool Aid man.

    https://gfycat.com/DelightfulObeseBarbet

    Boy, he really likes Kasperwings.
     
  16. Aug 16, 2018 #96

    henryk

    henryk

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    -can You translate (for me!)?
     
  17. Aug 16, 2018 #97

    henryk

    henryk

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    -we start to examinate new 2 kg weight (patented) coaxial gear=

    =motor RPM=4500/min, two 3-blades 175 cm propellers,1500 RPM each=1800 N thrust,

    at 32 deg.Celsie.

    =very low noise, no possibility to stay on fuse ! ( concentrated propellers stream )...

    -iff conduct thrust measuremants I should lay on the ground !!!
     
  18. Aug 17, 2018 #98

    Highflight

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    It is an observation that you immediately comment on any mention of the words Kasper or Kasperwing. It is not an intended as an insult, rather that you are a true believer and supporter of Witold Kasper's and the Kasperwing ultralight design concepts.

    KASPERFEST 2018 is to be held the last week of August, weather permitting.
     
  19. Aug 17, 2018 #99

    henryk

    henryk

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    -big GREATINGS for KASPERFEST pilots !
     
  20. Aug 19, 2018 #100

    henryk

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    Last edited: Aug 19, 2018

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