KR> Spoilers & Flaps

[Virgil N.Salisbury]

 I think that that was DUMBO from Marietta Ga. Outran his folks 
Beechcraft, Virg


 On 1/21/2015 3:09 PM, Mike Stirewalt via KRnet wrote:
> I'm posting this link again of Randy Hebron's KR-1 taildragger with
> spoilers and full-span flaps.  This article is from 1980.  Early days.  A
> lot of what is under discussion re KR mods were done early on.
>
> http://aerofoilengineering.com/KR/sportaviation/Kr80-8.HTM
>
> "With its updraft cooling, full span flaps, spoilers, and GAPC-1 airfoil,
> the highly-modified KR-1 was capable of a top speed of 179 MPH on a
> 1600cc VW engine and a stall speed in the 45 MPH range. While competing
> in the Lowers-Baker-Falck 500 efficiency and speed competition in 1981,
> Randy?s highly modified KR-1 was a strong contender. In fact, during the
> Baker portion of the competition, Randy and his KR-1 took 2nd place."
> Here is another article on one of Randy's airplanes.
>
> http://www.eaa.ca/experimenter/articles/2009-05_volmer.asp
>
> also
>
> http://www.eaa.ca/experimenter/issues/0905.html
>
> Randy is a member of EAA Chapter 113 and would be worth tracking down for
> anyone wanting to discuss KR mods in general, spoilers in particular.
>
> Mike
> KSEE
> 
> Death of Cable
> What Your Cable Company Doesn???t Want You to Know
> http://thirdpartyoffers.juno.com/TGL3141/54c007bf64aed7bf48f4st02vuc
> ___
> Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search.
> To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
> please see other KRnet info at http://www.krnet.org/info.html
> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change 
> options
>

KR> Spoilers & Flaps

[laser147 at juno.com]

I'm posting this link again of Randy Hebron's KR-1 taildragger with
spoilers and full-span flaps.  This article is from 1980.  Early days.  A
lot of what is under discussion re KR mods were done early on.  

http://aerofoilengineering.com/KR/sportaviation/Kr80-8.HTM

"With its updraft cooling, full span flaps, spoilers, and GAPC-1 airfoil,
the highly-modified KR-1 was capable of a top speed of 179 MPH on a
1600cc VW engine and a stall speed in the 45 MPH range. While competing
in the Lowers-Baker-Falck 500 efficiency and speed competition in 1981,
Randy?s highly modified KR-1 was a strong contender. In fact, during the
Baker portion of the competition, Randy and his KR-1 took 2nd place."
Here is another article on one of Randy's airplanes. 

http://www.eaa.ca/experimenter/articles/2009-05_volmer.asp

also

http://www.eaa.ca/experimenter/issues/0905.html

Randy is a member of EAA Chapter 113 and would be worth tracking down for
anyone wanting to discuss KR mods in general, spoilers in particular.  

Mike
KSEE

Death of Cable
What Your Cable Company Doesn???t Want You to Know
http://thirdpartyoffers.juno.com/TGL3141/54c007bf64aed7bf48f4st02vuc

KR> spoilers

[John Martindale]

I worry about the loss of continuity in the upper skin to make space for the
scissors where the fibreglass attachment to the spar is critical.

John Martindale
29 Jane Circuit
Toormina NSW 2452
Australia

ph:61 2 6658 4767
m:0403 432179
email:john_martindale at bigpond.com
web site: http://john-martindale-kr2.zxq.net
-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Oscar Zuniga
via KRnet
Sent: Tuesday, 20 January 2015 4:24 PM
To: krnet at list.krnet.org
Subject: KR> spoilers

I'm considerably behind the curve when it comes to reading posts to this
list, but I did notice some discussion on spoilers...snip



-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.5645 / Virus Database: 4260/8964 - Release Date: 01/20/15

KR> spoilers

[Chris Prata]

I agree these are learning platforms. As to the effect, I think of how minimal 
stall strips are and yet they have a major effect.  BTW, the F4U Corsair, 
arguably the best piston fighter ever made, had a dangerous tendency to 
snap-stall the right wing under a couple different conditions during landing on 
a carrier and during a abort when power is suddenly added. A 6" stall strip 
added to the left wing changed the whole situation for the better.
Someone mentioned affecting the structure of the wing, and I would also be 
concerned about creating a stress point at the corners of the openings for 
these things, from which a crack could extend. Need to strengthen and round the 
corners I would think.




> Date: Tue, 20 Jan 2015 16:13:25 -0800
> To: craig at kr2seafury.com; krnet at list.krnet.org
> Subject: Re: KR> spoilers
> From: krnet at list.krnet.org
> 
> Hi Craig,
> 
> I think they're a great idea.  This is the fun of experimental airplanes, to 
> EXPERIMENT..  I found on my Moni that they don't have to be very long or very 
> high above the wing to work well.  Obviously, correct placement on the wing 
> would be the important thing.
> 
> Look forward to seeing your progress.
> 
> Ron
> St. Louis, MO
> 
> 
> ----
> On Tue, 1/20/15, CraigW via KRnet  wrote:
> 
>  Subject: Re: KR> spoilers
>  To: "ppaulvsk" , "John Martindale"  bigpond.com>, "KRnet" 
>  Date: Tuesday, January 20, 2015, 12:22 PM
>  
>  Someone had to do those first. 
>  I like the idea.  I have an idea how it could be
>  done.  Maybe I will play with it a bit.
>   
>  Craig
>  www.kr2seafury.com
>  
>  > On January 20, 2015 at 7:05 AM ppaulvsk via KRnet
>  
>  > wrote:
>  >
>  >
>  > Why would you do something like this?  When flaps
>  and bellyboards work just
>  > fine and has been flight proven. 
>  >
>  > Paul Visk
>  > Belleville Il
>  > 618-406-4705
>  >
>  > Sent on the new Sprint Network from my Samsung Galaxy
>  S?4.
>  >
>  >  Original message
>  From: John Martindale via
>  > KRnet 
>  Date:01/20/2015 6:15 AM (GMT-05:00)
>  > To: 'Oscar Zuniga' ,'KRnet'
>  > 
>  Subject: Re: KR> spoilers
>  
>  > I worry about the loss of continuity in the
>  upper skin to make space for
>  > the
>  > scissors where the fibreglass attachment to the spar is
>  critical.
>  >
>  > John Martindale
>  > 29 Jane Circuit
>  > Toormina NSW 2452
>  > Australia
>  >
>  > ph:61 2 6658 4767
>  > m:0403 432179
>  > email:john_martindale at bigpond.com
>  > web site: http://john-martindale-kr2.zxq.net
>  > -Original Message-
>  > From: KRnet [mailto:krnet-bounces at list.krnet.org]
>  On Behalf Of Oscar Zuniga
>  > via KRnet
>  > Sent: Tuesday, 20 January 2015 4:24 PM
>  > To: krnet at list.krnet.org
>  > Subject: KR> spoilers
>  >
>  > I'm considerably behind the curve when it comes to
>  reading posts to this
>  > list, but I did notice some discussion on
>  spoilers...snip
>  >
>  >
>  >
>  > -
>  > No virus found in this message.
>  > Checked by AVG - www.avg.com
>  > Version: 2015.0.5645 / Virus Database: 4260/8964 -
>  Release Date: 01/20/15
>  >
>  >
>  > ___
>  > Search the KRnet Archives at
>  http://tugantek.com/archmailv2-kr/search.
>  > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
>  > please see other KRnet info at http://www.krnet.org/info.html
>  > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
>  to change
>  > options
>  > ___
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>  to change
>  > options
>  ___
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>  to change options
>  
> 
> ___
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> options

KR> spoilers

[bjoenunley]

I would make a spoiler very much like a belly board. ?Lay the spoiler flat 
against the wing, hinged to the wing, use some sort of actuator arm to extend 
it.?
I feel that I should make some comment about the holes in the spoilers but I 
believe that we have had that discussion.?

Joe


Sent from my Verizon Wireless 4G LTE smartphone

 Original message From: Chris Prata via KRnet 
 Date:01/20/2015  7:03 PM  (GMT-06:00) 
To: Ronald Wright ,krnet at list.krnet.org 
Subject: Re: KR> spoilers 
I agree these are learning platforms. As to the effect, I think of how 
minimal stall strips are and yet they have a major effect.  BTW, the F4U 
Corsair, arguably the best piston fighter ever made, had a dangerous tendency 
to snap-stall the right wing under a couple different conditions during landing 
on a carrier and during a abort when power is suddenly added. A 6" stall strip 
added to the left wing changed the whole situation for the better.
Someone mentioned affecting the structure of the wing, and I would also be 
concerned about creating a stress point at the corners of the openings for 
these things, from which a crack could extend. Need to strengthen and round the 
corners I would think.




> Date: Tue, 20 Jan 2015 16:13:25 -0800
> To: craig at kr2seafury.com; krnet at list.krnet.org
> Subject: Re: KR> spoilers
> From: krnet at list.krnet.org
> 
> Hi Craig,
> 
> I think they're a great idea.  This is the fun of experimental airplanes, to 
> EXPERIMENT..  I found on my Moni that they don't have to be very long or very 
> high above the wing to work well.  Obviously, correct placement on the wing 
> would be the important thing.
> 
> Look forward to seeing your progress.
> 
> Ron
> St. Louis, MO
> 
> 
> ----
> On Tue, 1/20/15, CraigW via KRnet  wrote:
> 
>  Subject: Re: KR> spoilers
>  To: "ppaulvsk" , "John Martindale"  bigpond.com>, "KRnet" 
>  Date: Tuesday, January 20, 2015, 12:22 PM
>  
>  Someone had to do those first. 
>  I like the idea.  I have an idea how it could be
>  done.  Maybe I will play with it a bit.
>   
>  Craig
>  www.kr2seafury.com
>  
>  > On January 20, 2015 at 7:05 AM ppaulvsk via KRnet
>  
>  > wrote:
>  >
>  >
>  > Why would you do something like this?  When flaps
>  and bellyboards work just
>  > fine and has been flight proven. 
>  >
>  > Paul Visk
>  > Belleville Il
>  > 618-406-4705
>  >
>  > Sent on the new Sprint Network from my Samsung Galaxy
>  S?4.
>  >
>  >  Original message
>  From: John Martindale via
>  > KRnet 
>  Date:01/20/2015 6:15 AM (GMT-05:00)
>  > To: 'Oscar Zuniga' ,'KRnet'
>  > 
>  Subject: Re: KR> spoilers
>  
>  > I worry about the loss of continuity in the
>  upper skin to make space for
>  > the
>  > scissors where the fibreglass attachment to the spar is
>  critical.
>  >
>  > John Martindale
>  > 29 Jane Circuit
>  > Toormina NSW 2452
>  > Australia
>  >
>  > ph:61 2 6658 4767
>  > m:0403 432179
>  > email:john_martindale at bigpond.com
>  > web site: http://john-martindale-kr2.zxq.net
>  > -Original Message-
>  > From: KRnet [mailto:krnet-bounces at list.krnet.org]
>  On Behalf Of Oscar Zuniga
>  > via KRnet
>  > Sent: Tuesday, 20 January 2015 4:24 PM
>  > To: krnet at list.krnet.org
>  > Subject: KR> spoilers
>  >
>  > I'm considerably behind the curve when it comes to
>  reading posts to this
>  > list, but I did notice some discussion on
>  spoilers...snip
>  >
>  >
>  >
>  > -
>  > No virus found in this message.
>  > Checked by AVG - www.avg.com
>  > Version: 2015.0.5645 / Virus Database: 4260/8964 -
>  Release Date: 01/20/15
>  >
>  >
>  > ___
>  > Search the KRnet Archives at
>  http://tugantek.com/archmailv2-kr/search.
>  > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
>  > please see other KRnet info at http://www.krnet.org/info.html
>  > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
>  to change
>  > options
>  > ___
>  > Search the KRnet Archives at
>  http://tugantek.com/archmailv2-kr/search.
>  > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
>  > please see other KRnet info at http://www.krnet.org/info.html
>  > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
>  to change
>  > options
>  _

KR> spoilers

[Flesner]

At 04:06 PM 1/20/2015, you wrote:
>?  Their spoiler design is much smaller than I would have expected

++

Yes, and look at the big HOLES in those things. :-)

Larry Flesner

KR> spoilers

[Ronald Wright]

Hi Craig,

I think they're a great idea.  This is the fun of experimental airplanes, to 
EXPERIMENT..  I found on my Moni that they don't have to be very long or very 
high above the wing to work well.  Obviously, correct placement on the wing 
would be the important thing.

Look forward to seeing your progress.

Ron
St. Louis, MO



On Tue, 1/20/15, CraigW via KRnet  wrote:

 Subject: Re: KR> spoilers
 To: "ppaulvsk" , "John Martindale" , "KRnet" 
 Date: Tuesday, January 20, 2015, 12:22 PM

 Someone had to do those first.?
 I like the idea.? I have an idea how it could be
 done.? Maybe I will play with it a bit.

 Craig
 www.kr2seafury.com

 > On January 20, 2015 at 7:05 AM ppaulvsk via KRnet
 
 > wrote:
 >
 >
 > Why would you do something like this?? When flaps
 and bellyboards work just
 > fine and has been flight proven. 
 >
 > Paul Visk
 > Belleville Il
 > 618-406-4705
 >
 > Sent on the new Sprint Network from my Samsung Galaxy
 S?4.
 >
 >  Original message
 From: John Martindale via
 > KRnet 
 Date:01/20/2015 6:15 AM (GMT-05:00)
 > To: 'Oscar Zuniga' ,'KRnet'
 > 
 Subject: Re: KR> spoilers
 
 > I worry about the loss of continuity in the
 upper skin to make space for
 > the
 > scissors where the fibreglass attachment to the spar is
 critical.
 >
 > John Martindale
 > 29 Jane Circuit
 > Toormina NSW 2452
 > Australia
 >
 > ph:61 2 6658 4767
 > m:0403 432179
 > email:john_martindale at bigpond.com
 > web site: http://john-martindale-kr2.zxq.net
 > -Original Message-
 > From: KRnet [mailto:krnet-bounces at list.krnet.org]
 On Behalf Of Oscar Zuniga
 > via KRnet
 > Sent: Tuesday, 20 January 2015 4:24 PM
 > To: krnet at list.krnet.org
 > Subject: KR> spoilers
 >
 > I'm considerably behind the curve when it comes to
 reading posts to this
 > list, but I did notice some discussion on
 spoilers...snip
 >
 >
 >
 > -
 > No virus found in this message.
 > Checked by AVG - www.avg.com
 > Version: 2015.0.5645 / Virus Database: 4260/8964 -
 Release Date: 01/20/15
 >
 >
 > ___
 > Search the KRnet Archives at
 http://tugantek.com/archmailv2-kr/search.
 > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
 > please see other KRnet info at http://www.krnet.org/info.html
 > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
 to change
 > options
 > ___
 > Search the KRnet Archives at
 http://tugantek.com/archmailv2-kr/search.
 > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
 > please see other KRnet info at http://www.krnet.org/info.html
 > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
 to change
 > options
 ___
 Search the KRnet Archives at
 http://tugantek.com/archmailv2-kr/search.
 To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
 please see other KRnet info at http://www.krnet.org/info.html
 see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
 to change options

KR> spoilers

[bjoenunley]

? Their spoiler design is much smaller than I would have expected.?

Spoiler Picture here:
https://preciseflight.com/general-aviation/shop/speedbrakes/ and they do have a 
system available for experimental aircraft.

Joe

Sent from my Verizon Wireless 4G LTE smartphone

 Original message From: Oscar Zuniga via KRnet 
 Date:01/19/2015  11:23 PM  (GMT-06:00) 
To: krnet at list.krnet.org Subject: KR> spoilers 

I'm considerably behind the curve when it comes to reading posts to this 
list, but I did notice some discussion on spoilers.  The obvious first choice 
is to go with conventional sailplane-style spoilers that are essentially hinged 
flaps that deploy upwards off the upper surface of the wing, but the ones used 
by Mooney are interesting in their own way.  They are the Precise Flight 
"SpeedBrakes" and they operate scissor-style as they emerge from the wing.  
Picture here:
https://preciseflight.com/general-aviation/shop/speedbrakes/ and they do have a 
system available for experimental aircraft but they want $4595 for it ;o)  They 
are electric, the set weighs 9 lbs. but that includes electric actuators.  A 
clever builder could come up with a mechanical scissors motion and dispense 
with the electrics to save the weight of actuators.

It obviously took a great deal of engineering and testing to determine the best 
place to put them on the airfoil.  Anybody got a wind tunnel?  ;o) Just more 
food for thought.

Oscar Zuniga
Medford, OR


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KR> spoilers

[CraigW]

Someone had to do those first.  I like the idea.  I have an idea how it could be
done.  Maybe I will play with it a bit.

Craig
www.kr2seafury.com

> On January 20, 2015 at 7:05 AM ppaulvsk via KRnet 
> wrote:
>
>
> Why would you do something like this?  When flaps and bellyboards work just
> fine and has been flight proven. 
>
> Paul Visk
> Belleville Il
> 618-406-4705
>
> Sent on the new Sprint Network from my Samsung Galaxy S?4.
>
>  Original message From: John Martindale via
> KRnet  Date:01/20/2015 6:15 AM (GMT-05:00)
> To: 'Oscar Zuniga' ,'KRnet'
>  Subject: Re: KR> spoilers 
> I worry about the loss of continuity in the upper skin to make space for
> the
> scissors where the fibreglass attachment to the spar is critical.
>
> John Martindale
> 29 Jane Circuit
> Toormina NSW 2452
> Australia
>
> ph:61 2 6658 4767
> m:0403 432179
> email:john_martindale at bigpond.com
> web site: http://john-martindale-kr2.zxq.net
> -Original Message-
> From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Oscar Zuniga
> via KRnet
> Sent: Tuesday, 20 January 2015 4:24 PM
> To: krnet at list.krnet.org
> Subject: KR> spoilers
>
> I'm considerably behind the curve when it comes to reading posts to this
> list, but I did notice some discussion on spoilers...snip
>
>
>
> -
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2015.0.5645 / Virus Database: 4260/8964 - Release Date: 01/20/15
>
>
> ___
> Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search.
> To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
> please see other KRnet info at http://www.krnet.org/info.html
> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change
> options
> ___
> Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search.
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> options

KR> spoilers

[ppaulvsk]

Why would you do something like this? ?When flaps and bellyboards work just 
fine and has been flight proven.?

Paul Visk
Belleville Il
618-406-4705

Sent on the new Sprint Network from my Samsung Galaxy S?4.

 Original message From: John Martindale via 
KRnet  Date:01/20/2015  6:15 AM  
(GMT-05:00) To: 'Oscar Zuniga' ,'KRnet' 
 Subject: Re: KR> spoilers 
I worry about the loss of continuity in the upper skin to make space for 
the
scissors where the fibreglass attachment to the spar is critical.

John Martindale
29 Jane Circuit
Toormina NSW 2452
Australia

ph:61 2 6658 4767
m:0403 432179
email:john_martindale at bigpond.com
web site: http://john-martindale-kr2.zxq.net
-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Oscar Zuniga
via KRnet
Sent: Tuesday, 20 January 2015 4:24 PM
To: krnet at list.krnet.org
Subject: KR> spoilers

I'm considerably behind the curve when it comes to reading posts to this
list, but I did notice some discussion on spoilers...snip



-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.5645 / Virus Database: 4260/8964 - Release Date: 01/20/15


___
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KR> spoilers

[Chris Kinnaman]

HaHaHaHa! Good one - Maybe with a KR but probably not with a Mooney...

On 1/19/2015 10:40 PM, Chris Prata via KRnet wrote:
> For $5000 wouldnt it be cheaper to just hit whatever's at the end of the 
> runway?
>
>
>
>> To: krnet at list.krnet.org
>> Date: Mon, 19 Jan 2015 21:23:33 -0800
>> Subject: KR> spoilers
>> From: krnet at list.krnet.org
>>
>> I'm considerably behind the curve when it comes to reading posts to this 
>> list, but I did notice some discussion on spoilers.  The obvious first 
>> choice is to go with conventional sailplane-style spoilers that are 
>> essentially hinged flaps that deploy upwards off the upper surface of the 
>> wing, but the ones used by Mooney are interesting in their own way.  They 
>> are the Precise Flight "SpeedBrakes" and they operate scissor-style as they 
>> emerge from the wing.  Picture here:
>> https://preciseflight.com/general-aviation/shop/speedbrakes/ and they do 
>> have a system available for experimental aircraft but they want $4595 for it 
>> ;o)  They are electric, the set weighs 9 lbs. but that includes electric 
>> actuators.  A clever builder could come up with a mechanical scissors motion 
>> and dispense with the electrics to save the weight of actuators.
>>   
>> It obviously took a great deal of engineering and testing to determine the 
>> best place to put them on the airfoil.  Anybody got a wind tunnel?  ;o) Just 
>> more food for thought.
>>   
>> Oscar Zuniga
>> Medford, OR
>>   
>>  
>> ___
>> Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search.
>> To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org
>> please see other KRnet info at http://www.krnet.org/info.html
>> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change 
>> options
>   
> ___
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KR> spoilers

[Chris Prata]

For $5000 wouldnt it be cheaper to just hit whatever's at the end of the runway?



> To: krnet at list.krnet.org
> Date: Mon, 19 Jan 2015 21:23:33 -0800
> Subject: KR> spoilers
> From: krnet at list.krnet.org
> 
> I'm considerably behind the curve when it comes to reading posts to this 
> list, but I did notice some discussion on spoilers.  The obvious first choice 
> is to go with conventional sailplane-style spoilers that are essentially 
> hinged flaps that deploy upwards off the upper surface of the wing, but the 
> ones used by Mooney are interesting in their own way.  They are the Precise 
> Flight "SpeedBrakes" and they operate scissor-style as they emerge from the 
> wing.  Picture here:
> https://preciseflight.com/general-aviation/shop/speedbrakes/ and they do have 
> a system available for experimental aircraft but they want $4595 for it ;o)  
> They are electric, the set weighs 9 lbs. but that includes electric 
> actuators.  A clever builder could come up with a mechanical scissors motion 
> and dispense with the electrics to save the weight of actuators.
>  
> It obviously took a great deal of engineering and testing to determine the 
> best place to put them on the airfoil.  Anybody got a wind tunnel?  ;o) Just 
> more food for thought.
>  
> Oscar Zuniga
> Medford, OR
>  
> 
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KR> spoilers

[Oscar Zuniga]

I'm considerably behind the curve when it comes to reading posts to this list, 
but I did notice some discussion on spoilers.  The obvious first choice is to 
go with conventional sailplane-style spoilers that are essentially hinged flaps 
that deploy upwards off the upper surface of the wing, but the ones used by 
Mooney are interesting in their own way.  They are the Precise Flight 
"SpeedBrakes" and they operate scissor-style as they emerge from the wing.  
Picture here:
https://preciseflight.com/general-aviation/shop/speedbrakes/ and they do have a 
system available for experimental aircraft but they want $4595 for it ;o)  They 
are electric, the set weighs 9 lbs. but that includes electric actuators.  A 
clever builder could come up with a mechanical scissors motion and dispense 
with the electrics to save the weight of actuators.

It obviously took a great deal of engineering and testing to determine the best 
place to put them on the airfoil.  Anybody got a wind tunnel?  ;o) Just more 
food for thought.

Oscar Zuniga
Medford, OR

KR> Spoilers & Flaps

[laser147 at juno.com]

Here's a Jack Cox article on Randy Hebron's KR-1 taildragger with full
span flaps and spoilers.  If the link is broken just take the space out.

http://aerofoilengineering.com/KR/sportaviation/Kr80-8.HTM

Mike
KSEE


Apples Crazy New Gizmo
Forget the iPhone 6. Next hit Apple product leaked. see picture
http://thirdpartyoffers.juno.com/TGL3141/54b7e755d1edc6755379dst02vuc

KR> spoilers.

[Harold Woods]

Hi Netters,
The holiday in Portugal is over, I am trying to catch up on the KRnet 
postings. The 25 March/06 asks if any one was using spoilers. Yes I am. I 
built them into the main wings at the start of the building of the center 
wing. I got a report from  gentleman in England that did this too. He 
reported a real steep glide angle but reported buffeting which he did not 
like. He also reported no floating on touchdown. As a result , I put the 
horizontal stabilizers on the top of the rudder to keep them out of the 
turbulent flow from the spoilers. That called for a big design change. I am 
still behind in everything including work on the KR.
Regards
Harold Woods
Orillia, ON. Canada
haroldwo...@rogers.com 

KR> Spoilers?

[Frank Ross]

Has anyone used spoilers on the KR? 
  It surprises me that with all the "improvements" folks have tried over the 
years, I've never seen any mention of spoilers on the wings. It shouldn't be 
any harder than building a belly-board, but is going to take up some space in 
the wing and add some weight. Should do the job once the plane is on (or a few 
inches from) the ground.
  But hey, if you wanted to fly slow and land short, you wouldn't have built a 
KR, right?
  Frank

da...@alltel.net wrote:
I wonder how the stall speed compares between the stock wing and the Diehl 
wing skin wings. I think I need a belly board cause I think this thing is going 
to float forever.

Dan

From: larry severson 
More lift = more drag. Land slow, fly slow.




Frank Ross, 
EAA Chapter 35,
San Geronimo, TX
RAF Lakenheath, Suffolk, England, UK
Visit my photo album at:
http://photos.yahoo.com/alamokr2

-
New Yahoo! Messenger with Voice. Call regular phones from your PC and save big.

KR> Spoilers? pt 2

[Frank Ross]

Dan,
  I'm not suggesting you rip into YOUR wings at this point, just thinking out 
loud. 
  Getter flyin', that things too pretty to be sitting around gathering dust...
  Frank



Frank Ross, 
EAA Chapter 35,
San Geronimo, TX
RAF Lakenheath, Suffolk, England, UK
Visit my photo album at:
http://photos.yahoo.com/alamokr2

-
Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ 
countries) for 2¢/min or less.

KR> Spoilers?

[VIRGIL N SALISBURY]

I think "DUMBO" used spoilers with the GAW airfoil. Check
newsletter 396 ?? of the newsletters. Get the CD of past newsletters,
Virg

On Thu, 23 Mar 2006 23:03:33 -0800 (PST) Frank Ross 
writes:
> Has anyone used spoilers on the KR? 
>   It surprises me that with all the "improvements" folks have tried 
> over the years, I've never seen any mention of spoilers on the 
> wings. It shouldn't be any harder than building a belly-board, but 
> is going to take up some space in the wing and add some weight. 
> Should do the job once the plane is on (or a few inches from) the 
> ground.
>   But hey, if you wanted to fly slow and land short, you wouldn't 
> have built a KR, right?
>   Frank
> 
> da...@alltel.net wrote:
> I wonder how the stall speed compares between the stock wing and 
> the Diehl wing skin wings. I think I need a belly board cause I 
> think this thing is going to float forever.
> 
> Dan
>   
> From: larry severson 
> More lift = more drag. Land slow, fly slow.
> 
> 
> 
> 
> Frank Ross, 
> EAA Chapter 35,
> San Geronimo, TX
> RAF Lakenheath, Suffolk, England, UK
> Visit my photo album at:
> http://photos.yahoo.com/alamokr2
> 
> -
> New Yahoo! Messenger with Voice. Call regular phones from your PC 
> and save big.
> ___
> Search the KRnet Archives at 
> http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
> 
> 


Virgil N. Salisbury - AMSOIL
www.lubedealer.com/salisbury
Miami ,Fl

KR> Spoilers?

[Frank Ross]

Thanks Virg,
  I'll "look it up" as they say.
  BTW, sure will miss coming to SNF this year. Hope you all have a great time.
  Frank Ross,


VIRGIL N SALISBURY  wrote:
  I think "DUMBO" used spoilers with the GAW airfoil. Check
newsletter 396 ?? of the newsletters. Get the CD of past newsletters,
Virg


Frank Ross, 
EAA Chapter 35,
San Geronimo, TX
RAF Lakenheath, Suffolk, England, UK
Visit my photo album at:
http://photos.yahoo.com/alamokr2

-
Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.

KR> spoilers and the KR

[VIRGIL N SALISBURY]

I think that DUMBO used them with the GAW Airfoil, Virg

On Sun, 18 Dec 2005 23:05:43 -0500 "Colin Rainey"
 writes:
> Not to put the project down, but I would think long and hard about 
> using spoilers for roll control in a KR.  I have known of several 
> aircraft that have employed them, and they had some unusual spin 
> recovery techinques to say the least.  Several pilots I know have 
> flown twins with them, one specifically the Mitsubishi model, and 
> had nothing good to say about the configuration.  There are certain 
> flight conditions where the spoilers just do not give enough roll 
> control response, and I personally would only use them for speed 
> control and altitude control, like the inboard mounted kind used for 
> slowing down, or altitude loss.
> 
> 
> Colin Rainey
> brokerpilot9...@earthlink.net
> EarthLink Revolves Around You.
> ___
> Search the KRnet Archives at 
> http://www.maddyhome.com/krsrch/index.jsp
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> please see other KRnet info at http://www.krnet.org/info.html
> 
> 


Virgil N. Salisbury - AMSOIL
www.lubedealer.com/salisbury
Miami ,Fl

KR> spoilers and the KR

[Colin Rainey]

Not to put the project down, but I would think long and hard about using 
spoilers for roll control in a KR.  I have known of several aircraft that have 
employed them, and they had some unusual spin recovery techinques to say the 
least.  Several pilots I know have flown twins with them, one specifically the 
Mitsubishi model, and had nothing good to say about the configuration.  There 
are certain flight conditions where the spoilers just do not give enough roll 
control response, and I personally would only use them for speed control and 
altitude control, like the inboard mounted kind used for slowing down, or 
altitude loss.


Colin Rainey
brokerpilot9...@earthlink.net
EarthLink Revolves Around You.