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100" Kinetic Sailplane 357mph Dynamic Soaring World Record

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Uploaded by on May 3, 2008

Spencer Lisenby sets new World Record speed for a Glider of 357mph. This vid shows the 333mph pass but vid camera battery died before the 357mph run. Thanks JOe Zepeda for video.

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Science & Technology

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Uploader Comments (sll914)

  • If you guys clock it on the downhill side you could probably add 60 mph to it. Also, when you use 2 radar guns they might jam each other with 2 return signals it might be more reliable using 1 radar only.

  • @dustycoyote1

    Agreed! We've always just used the up leg becasue it is safer and more convenient. All we really need is a relative comparison anyway.  Mark Drela posted a nice plot of ground speed throughout the circuit on RCGroups that shows the downleg speed to be a little over 10% more than the upleg speed where we currently measure.

    I have wondered about interference between the guns before...

  • How landing

  • @MarcChep Drop flaps and it'll land slowly

  • so Now.... how do you land it?

  • @convict9110

    burn off all the speed, then drop the flaps to hover down to the top of the ridge like a helicopter as long as the wind is a steady 25-30mph or so...

Top Comments

  • As a full size sailplane pilot, i had been wondering when some one would DS in a full size. Looking at the coments here, we would be stuffed by the 'g' very quickly and also would rapidly get well past our max manoevering speed (not much more than 100kts on most sailplanes). But hell, it would be FUN! Well done you guys, really great stuff.

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All Comments (129)

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  • WITCHCRAFT!!

  • WTF??!! That is insane!

  • HOLY CRAP THAT IS WAY TOO MUCH FORCE FOR A SMALL RC PLANE.

  • unreal

  • Moving like a jet. & not a drop of fuel burned.

  • Very nice. Especially with all the phony video posts on here. Whatever you do, don't accidently fly that thing into yourself!!!! I think it'll leave a mark.

  • what's the model?

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