Spoems - 100" Kinetic Sailplane 357mph Dynamic Soaring World Record

100" Kinetic Sailplane 357mph Dynamic Soaring World Record

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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.

Channel: Science & Technology
Uploaded: May 3, 2008 at 12:35 pm
Author: sll914

Length: 0:03:04
Rating: 5.00
Views: 29,091

Tags: Dynamic Soaring

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Video Comments:
Delticola (Monday 5th of January 2009 12:20:18 PM)
What's the science behind this wind action? The wind blows one direction on the side of the hill or multiple directions? What is the trick to getting the plane to that speed? Where are the forces pushing that plane?
sll914 (Monday 5th of January 2009 02:45:42 PM)
It is called Dynamic Soaring. The plane extracts energy by moving between airmasses with different velocities. In the video, the wind is coming from the right. We are flying on the back side of a ridge. The air behind the ridge is basically still. Every time the plane moves from the still air into the 50mph headwind, it gains 50mph of airspeed. Repeat with each circuit while trying to minimize losses and eventually the plane really gets moving fast!
v16050118130114 (Sunday 4th of January 2009 11:58:16 AM)
Wow, I wonder how long it will be until someone approaches Mach 1? The record has been increasing by around 50-75 MPH per year, hasn't it?
sll914 (Friday 2nd of January 2009 04:14:42 PM)
You are correct. Just an hour or so North of Palmdale...
LP640Murcielago (Thursday 1st of January 2009 10:34:11 PM)
lol, I was flying gliders with my sisters boyfriend and her friend today and they told me about this video and I didn't believe them but SHIT they were RIGHT!!! 357 MPH!!! that's almost like impossible!!! I thought it was a mean sound it made when ours went past us but now I no it can almost sound like a jet!!! AWESOME VIDEO!!!
Annal85 (Monday 29th of December 2008 01:29:44 PM)
The guy that designed this radar gun must be a genius.
sll914 (Friday 2nd of January 2009 04:13:40 PM)
I agree! Maurice is the first guy to make a commercially available gun to read that fast. Certified genious ;o)
dieselstruck (Thursday 25th of December 2008 11:15:14 AM)
crap it sounds like an jet aircraft approaching!!
AlessandroAUS (Monday 22nd of December 2008 04:18:21 PM)
Your right that's definitely 375!
w7mag (Saturday 6th of December 2008 10:03:09 PM)
Forget my 375 comment, I just figured out I was looking at the wrong part of the display. Oops.