SAVE

[Nick Kennedy]

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

Surfing Aircraft Vortices for Energy

Interesting piece from Boeing Aircraft

Next summer when KS goes past me in his Duo Discus I think I am going to try this technique to keep up.

[Karl Striedieck[_2_]]

On Thursday, October 23, 2014 9:09:20 PM UTC-4, Nick Kennedy wrote:
> https://www.youtube.com/watch?v=srNTtuTqUBE
>
> Surfing Aircraft Vortices for Energy
>
> Interesting piece from Boeing Aircraft
>
> Next summer when KS goes past me in his Duo Discus I think I am going to try this technique to keep up.

Hey Nick, John Seymour and I have done such many years ago in our ASW-20's. One would position his glider behind lead about 100 feet, level in altitude and with the wing tip behind leads spoiler. Sure enough, the guy behind slowly moves forward and has enough energy to pass under or over. Lead is now number two and can repeat the same thing in a sort of grown ups leap frog..

KS

[Bruce Hoult[_2_]]

On 2014-10-24 10:34:02 +0000, Karl Striedieck said:

> On Thursday, October 23, 2014 9:09:20 PM UTC-4, Nick Kennedy wrote:
>> https://www.youtube.com/watch?v=srNTtuTqUBE
>>
>> Surfing Aircraft Vortices for Energy
>>
>> Interesting piece from Boeing Aircraft
>>
>> Next summer when KS goes past me in his Duo Discus I think I am going
>> to try this technique to keep up.
>
> Hey Nick, John Seymour and I have done such many years ago in our
> ASW-20's. One would position his glider behind lead about 100 feet,
> level in altitude and with the wing tip behind leads spoiler. Sure
> enough, the guy behind slowly moves forward and has enough energy to
> pass under or over. Lead is now number two and can repeat the same
> thing in a sort of grown ups leap frog.

Grown ups leap frog is something else entirely!

[[email protected]]

Beware low jumping at grownups' leapfrog.

On Thursday, October 23, 2014 7:09:20 PM UTC-6, Nick Kennedy wrote:
> https://www.youtube.com/watch?v=srNTtuTqUBE
>
> Surfing Aircraft Vortices for Energy
>
> Interesting piece from Boeing Aircraft
>
> Next summer when KS goes past me in his Duo Discus I think I am going to try this technique to keep up.

[[email protected]]

Wow! Now if you put a smoke canister into the appropriate wingtip, you would be able to see where the good air is.
Heinz

On Friday, October 24, 2014 3:34:03 AM UTC-7, Karl Striedieck wrote:

> Hey Nick, John Seymour and I have done such many years ago in our ASW-20's. One would position his glider behind lead about 100 feet, level in altitude and with the wing tip behind leads spoiler. Sure enough, the guy behind slowly moves forward and has enough energy to pass under or over. Lead is now number two and can repeat the same thing in a sort of grown ups leap frog.
>
> KS