KR> Flaps versus belly board versus spoilers

[Phillip Matheson]

I have been using wider flaps since 2007. they work very well. I really use 
full flap.
http://www.philskr2.50megs.com/index.html
click on removing Diehl wing and flap section at top of the page.


The bottom few photos will show the flap hinges I made.

Phil Matheson

--
On my KR I planned on using flaps, but extending them all the way to the
aft spar instead of just the 6-8" narrow flaps KRs normally have.  The
reason the chord of the flaps was so small is to keep them from dragging
on the ground with the short retract gear, but with modern KRs with long
gear legs there is no reason no to extend the chord.  I don't think
anyone has tried that before and I don't know why.  I also had my center
section wing stubs extended a foot or so on both sides so I think they
would have been very effective
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KR> Flaps versus belly board versus spoilers

[Dan Heath]

Matt Elder has made some awesome flaps for his KR1 knock off, MEXL.



See N64KR at   http://KRBuilder.org - Then click on
the pics 



2015 KR Gathering - McMinnville, OR.  September 3 - 6 -- See U There.



Peoples Choice at 2013 - KR Gathering in Mt. Vernon, Il - MVN 

Best KR at 2013 - KR Gathering in Mt. Vernon, Il - MVN 

Best Interior at 2013 - KR Gathering in Mt. Vernon, Il - MVN 

Best Paint at 2013 - KR Gathering in Mt. Vernon, Il - MVN 

Best Firwwall Forward at 2013 - KR Gathering in Mt. Vernon, Il - MVN 



Best Interior and Panel at 2008 - KR Gathering in Mt. Vernon, Il - MVN





Daniel R. Heath - Lexington, SC

KR> Dragonfly canopy

[dean choitz]

Where have most of you that have bought the Dragonfly canopy got yours Todd
told me his as more of a bubble than a flat It looks like the flight would
be more room Any comments

KR> (no subject)

[dean choitz]

KR> Wood rot issue, rare but serious when it occurs

[Chris Prata]

I found this article about the topic of wood deterioration in aircraft.  The 
short version I got was that it's dampness related, cant be prevented with 
paint and varnish, but can be prevented with other preservatives, and requires 
visual inspection to keep on top of, and dont store plane outdoors, and most 
preferably in heated hangar.
http://www.mooneymite.com/articles/dryrot/dryrotkills.htm

"In all but the driest of climates it is impossible to protect wood structures 
in aircraft from being attacked by fungus to some degree. But there are a 
number of preventive actions which can be taken to inhibit the decay process1. 
Store wooden aircraft in a hangar if possible, preferably a heated hangar, 
especially in winter. Admittedly this is becoming increasingly difficult today, 
as hangar space becomes more precious and many owners of wooden airplanes are 
being forced to settle for an outdoor tie-down area.2. There are a number of 
good wood preservatives available today, such as copper napthenate and 
pentachlorophenol. Properly impregnated into the wood, these will prevent or 
retard deterioration. Incidentally, regular paint and varnish do not 
necessarily ward off wood rot. When you paint or varnish you can actually seal 
many spores to the surface of the wood, and moisture Is capable of penetrating 
the painted surface under humid conditions.3. Most wood-constructed airplanes 
have some drain holes at the bottom of each wood component, so that any water 
which has accumulated there can drain out. It is imperative that drains be kept 
open and unclogged so that they can perform their invaluable function of 
allowing water to flow out, Make certain you know the location of all the drain 
ports on your aircraft, and inspect them at every preflight check." 

KR> Spruce Fungus

[Sid Wood]

I have pieces of 5/8" spruce from a project that were given to me.  That 
project was started in 1979 and never finished.  The spruce has no coating, 
has been kept dry and looks like the spruce you would get from AC Spruce 
today.  Keep it dry or coat all surfaces exposed to air (including bolt and 
staple holes) with epoxy and the spruce will last your lifetime and then 
some.

Sid Wood
Tri-gear KR-2 N6242
Mechanicsville, MD, USA
---
... an A&P friend of mine (and aluminum experimental builder), mentioned 
some spruce fungus issue that if not caught can be disastrous. Is this an 
issue with the materials, and if so how to inspect/avoid/prevent?
Thanks

--

At the risk of making a fool of myself, I bet he's confusing diseases of
living trees with lumber/wood preservation and protection.
Fungus can attack most any unprotected or ignored wood or wooden
product, so some sort of protection is required for longevity. Varnish
was the old standby but now there are a variety of synthetic finishes
which can do the job.   AND keeping wooden aircraft structure dry, of
course.

Maybe some really qualified person will chime in?

KR> Spruce Fungus

[Chris Kinnaman]

Likewise, I have done some work using spruce that was at least 20 years 
old, stored in a hangar all that time, and was fine. I have some 
spruce-stick-built ribs that are possibly as old as Sid's spruce, never 
varnished but kept dry and they are perfectly airworthy. I know some 
people who ripped capstrip out of old Stearman spars and though there 
was some evidence of rot on parts of the spar due to the old-time 
varnish cracking, those portions were discarded and the rest was used on 
an aerobatic airplane that has gotten plenty of hard use for decades. 
Wood airplanes are generally pretty robust.

If you want to get your metal A/C building friends worked up, bend over 
and look real close at their airplane's skin and say "Wow! Looks like 
the start of filiform corrosion!"

Chris


On 1/16/2015 12:40 PM, Sid Wood via KRnet wrote:
> I have pieces of 5/8" spruce from a project that were given to me.  
> That project was started in 1979 and never finished.  The spruce has 
> no coating, has been kept dry and looks like the spruce you would get 
> from AC Spruce today.  Keep it dry or coat all surfaces exposed to air 
> (including bolt and staple holes) with epoxy and the spruce will last 
> your lifetime and then some.
>
> Sid Wood
> Tri-gear KR-2 N6242
> Mechanicsville, MD, USA
> ---
> ... an A&P friend of mine (and aluminum experimental builder), 
> mentioned some spruce fungus issue that if not caught can be 
> disastrous. Is this an issue with the materials, and if so how to 
> inspect/avoid/prevent?
> Thanks
>
> --
>
> At the risk of making a fool of myself, I bet he's confusing diseases of
> living trees with lumber/wood preservation and protection.
> Fungus can attack most any unprotected or ignored wood or wooden
> product, so some sort of protection is required for longevity. Varnish
> was the old standby but now there are a variety of synthetic finishes
> which can do the job.   AND keeping wooden aircraft structure dry, of
> course.
>
> Maybe some really qualified person will chime in?
> 
>
>
>
>
>
> ___
> 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
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> change options
>
>

KR> project update

[Robert Pesak]

Hi everyone,
I'm trying to get things finished up in my garage because once I get it to the 
hanger it will be much harder. One of the things that's been bugging me for the 
longest is how to use capacitance probes for my wing tanks without placing them 
in the tanks. I thought of a sight gauge type of system by placing the sending 
units in metal tubes and placing them in front of the spar. Then the only thing 
I need to do is drill for a 1/8" fitting at the bottom of the tank next to the 
fuel outlet. See pics on my Photobucket

http://s449.photobucket.com/user/rkpsk1/library/

KR> Dragonfly canopy

[stefkr2 at kpnmail.nl]

Hi,
 we have ordered the canopy at
 Company name is  Windshield Co
Mail adres is.   gallo313 at aol.com
It is a very nice canopy. The one we have ordered  is on the longaron side one 
inch longer. Everything is possible with them but the are very bad in answering 
the e-mail. See my website.
Good luck.
Stef
--
Steph and his dad are building the KR-2S see   
http://www.masttotaalconcept.nl/kr2




>Origineel Bericht
>Van : krnet at list.krnet.org
>Datum : 16/01/2015 19:34
>Aan : krnet at list.krnet.org
>Onderwerp : KR> Dragonfly canopy
>
>Where have most of you that have bought the Dragonfly canopy got yours Todd
>told me his as more of a bubble than a flat It looks like the flight would
>be more room Any comments
>___
>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> project update

[Dan Heath]

How is that possible.  I had them in my wing tanks and they worked great.

See N64KR at http://KRBuilder.org - Then click on the pics?

2015 KR Gathering - McMinnville, OR.  September 3 - 6 -- See U There.

Peoples Choice at 2013 - KR Gathering in Mt. Vernon, Il ? MVN 
Best KR at 2013 - KR Gathering in Mt. Vernon, Il ? MVN 
Best Interior at 2013 - KR Gathering in Mt. Vernon, Il ? MVN 
Best Paint at 2013 - KR Gathering in Mt. Vernon, Il ? MVN 
Best Firwwall Forward at 2013 - KR Gathering in Mt. Vernon, Il ? MVN 

Best Interior and Panel at 2008 ? KR Gathering in Mt. Vernon, Il - MVN


Daniel R. Heath -?Lexington, SC


-Original Message-

how to use capacitance probes for my wing tanks without placing them in the
tanks. 

KR> project update

[Flesner]

>  how to use capacitance probes for my wing tanks without placing 
> them in the tanks.

++

Robert,

The only possibility I can envision is to have a stand pipe inside 
the cockpit , connected to the tank , where the level of fuel in the 
standpipe follows the level in the wing.  In that case, why not just 
use a site gauge.  I have 7 foot long probes in my wing tanks running 
from root to tip of the outer wing panel.  Because the tank thickness 
changes from root to tip, they are not linear.  For wing tanks where 
the wing has dihedral there is no perfect system, floats or 
otherwise.  Know what fuel you start with, know your fuel burn, and 
watch the clock.

Larry Flesner
P.S. for Robert.  I'll be in Nashville on occasion as my daughter is 
moving there next month.  I'd like to visit your project and promise 
not to track dirt into your sterile workshop. :-)  

KR> project update

[Robert Pesak]

Your right Larry, I don't understand why I have everything so complicated. 
Please let me know when coming, my cell number is 615-974-4417

http://s449.photobucket.com/user/rkpsk1/library/ 


On Friday, January 16, 2015 6:15 PM, Flesner via KRnet  wrote:




>  how to use capacitance probes for my wing tanks without placing 
> them in the tanks.

++

Robert,

The only possibility I can envision is to have a stand pipe inside 
the cockpit , connected to the tank , where the level of fuel in the 
standpipe follows the level in the wing.  In that case, why not just 
use a site gauge.  I have 7 foot long probes in my wing tanks running 
from root to tip of the outer wing panel.  Because the tank thickness 
changes from root to tip, they are not linear.  For wing tanks where 
the wing has dihedral there is no perfect system, floats or 
otherwise.  Know what fuel you start with, know your fuel burn, and 
watch the clock.

Larry Flesner
P.S. for Robert.  I'll be in Nashville on occasion as my daughter is 
moving there next month.  I'd like to visit your project and promise 
not to track dirt into your sterile workshop. :-)  



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KR> project update

[Robert Pesak]

Oh. I should have mentioned the probes are a after thought . My wing tanks 
are part of the leading edge of the wing, and this is the only way without 
major surgery on the wing.
http://s449.photobucket.com/user/rkpsk1/library/ 


On Friday, January 16, 2015 6:39 PM, Robert Pesak  wrote:



Your right Larry, I don't understand why I have everything so complicated. 
Please let me know when coming, my cell number is 615-974-4417

http://s449.photobucket.com/user/rkpsk1/library/ 


On Friday, January 16, 2015 6:15 PM, Flesner via KRnet  wrote:




>  how to use capacitance probes for my wing tanks without placing 
> them in the tanks.

++

Robert,

The only
 possibility I can envision is to have a stand pipe inside 
the cockpit , connected to the tank , where the level of fuel in the 
standpipe follows the level in the wing.  In that case, why not just 
use a site gauge.  I have 7 foot long probes in my wing tanks running 
from root to tip of the outer wing panel.  Because the tank thickness 
changes from root to tip, they are not linear.  For wing tanks where 
the wing has dihedral there is no perfect system, floats or 
otherwise.  Know what fuel you start with, know your fuel burn, and 
watch the clock.

Larry Flesner
P.S. for Robert.  I'll be in Nashville on occasion as my daughter is 
moving there next month.  I'd like to visit your project and promise 
not to
 track dirt into your sterile workshop. :-)  



___
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KR> project update

[Mark Wegmet]

I don't know why you wouldn't want to have the probes in your tank. There is
no electrical load on the probes nor current passing through the solution
per se. The active part of the sensor is outside of the solution being
measured. It is probably safer and more reliable than any "float" type of
sensor and can be readily calibrated for each element of the probe for
extremely accurate measurements. While I don't have them in a fuel tank, I
have used this type of probe in many other applications including
electroplating, rinsing, sensing, etc. etc. etc..

JMHO

Mark W.
N952MW

-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Flesner via
KRnet
Sent: Friday, January 16, 2015 6:15 PM
To: KRnet
Subject: Re: KR> project update


>  how to use capacitance probes for my wing tanks without placing them 
> in the tanks.

++

Robert,

The only possibility I can envision is to have a stand pipe inside the
cockpit , connected to the tank , where the level of fuel in the standpipe
follows the level in the wing.  In that case, why not just use a site gauge.
I have 7 foot long probes in my wing tanks running from root to tip of the
outer wing panel.  Because the tank thickness changes from root to tip, they
are not linear.  For wing tanks where the wing has dihedral there is no
perfect system, floats or otherwise.  Know what fuel you start with, know
your fuel burn, and watch the clock.

Larry Flesner
P.S. for Robert.  I'll be in Nashville on occasion as my daughter is moving
there next month.  I'd like to visit your project and promise not to track
dirt into your sterile workshop. :-)  


___
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KR> project update

[Patrick Driscoll]

Larry advised,   Know what fuel you start with, know your fuel burn, and
watch the clock.

I read somewhere, quite a while ago, that there were no fuel gauges in 
fighter planes until 1948. They flew by fuel burn and time.


Patrick Driscoll
Saint Paul, MN
patrick36 at usfamily.net
www.pensbypat.com
If you can read this, Thank a teacher
If you are reading this in English, thank a veteran 

KR> project update

[bjoenunley]

I purchased a gas cap that is also a float type fuel Guage. The fuel quantity 
indicator is displayed on the top of the cap. I look out the window onto the 
wing to see how much fuel that I have left.?



I also use time and fuel burn.?

Joe
Sent from my Verizon Wireless 4G LTE smartphone

 Original message From: Patrick Driscoll via 
KRnet  Date:01/16/2015  7:01 PM  
(GMT-06:00) To: Robert Pesak ,KRnet  Subject: Re: KR> project update 
Larry advised,   Know what fuel you start with, know your fuel burn, and
watch the clock.

I read somewhere, quite a while ago, that there were no fuel gauges in 
fighter planes until 1948. They flew by fuel burn and time.


Patrick Driscoll
Saint Paul, MN
patrick36 at usfamily.net
www.pensbypat.com
If you can read this, Thank a teacher
If you are reading this in English, thank a veteran 


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KR> Flaps versus belly board versus spoilers

[Mark Langford]

brian.kraut wrote:

> On my KR I planned on using flaps, but extending them all the way to the
> aft spar instead of just the 6-8" narrow flaps KRs normally have.  The
> reason the chord of the flaps was so small is to keep them from dragging
> on the ground with the short retract gear, but with modern KRs with long
> gear legs there is no reason no to extend the chord.  I don't think
> anyone has tried that before and I don't know why.

That sounds like what I did, except I upped the ante and made my flaps 
54" long  on each side and split!  See
http://www.n56ml.com/99101051.jpg for construction of the spar-length 
flaps and ailerons (http://www.n56ml.com/owings.html for more on wings) 
and http://www.n56ml.com/900hour/100727679.jpg for the finished flap.  I 
believe this is the ultimate setup, although next time I may use piano 
hinges to eliminate the hinges in the slipstream, and to speed 
construction considerably.  The big split flaps make a huge difference 
in drag and drop the stall speed by something like 7 mph.

I see Robert Pesak has done his in a similar way.

Mark Langford
ML at N56ML.com
http://www.n56ml.com

KR> project update

[Chris Prata]

or just buy a precise fuel totalizer! a far better system, which even shows 
GPM, etc.



> Date: Fri, 16 Jan 2015 18:14:37 -0600
> To: krnet at list.krnet.org
> Subject: Re: KR> project update
> From: krnet at list.krnet.org
> 
> 
> >  how to use capacitance probes for my wing tanks without placing 
> > them in the tanks.
> 
> ++
> 
> Robert,
> 
> The only possibility I can envision is to have a stand pipe inside 
> the cockpit , connected to the tank , where the level of fuel in the 
> standpipe follows the level in the wing.  In that case, why not just 
> use a site gauge.  I have 7 foot long probes in my wing tanks running 
> from root to tip of the outer wing panel.  Because the tank thickness 
> changes from root to tip, they are not linear.  For wing tanks where 
> the wing has dihedral there is no perfect system, floats or 
> otherwise.  Know what fuel you start with, know your fuel burn, and 
> watch the clock.
> 
> Larry Flesner
> P.S. for Robert.  I'll be in Nashville on occasion as my daughter is 
> moving there next month.  I'd like to visit your project and promise 
> not to track dirt into your sterile workshop. :-)  
> 
> 
> ___
> 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
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> options

KR> finally as promised

[Flesner]

As long ago promised and with my daughters aid, I have posted to 
youtube the video of the KR flight with the camera on the belly by 
the tailwheel.  Twelve minutes of video was cut to three.  Enjoy...

http://youtu.be/cgdgxVgPNAk

Larry Flesner

KR> finally as promised

[Alex Pearson]

Nice Landing! Thanks for the post.

Alex Pearson
San Antonio, TX

On Fri, Jan 16, 2015 at 8:51 PM, Flesner via KRnet 
wrote:

>
>
> As long ago promised and with my daughters aid, I have posted to youtube
> the video of the KR flight with the camera on the belly by the tailwheel.
> Twelve minutes of video was cut to three.  Enjoy...
>
> http://youtu.be/cgdgxVgPNAk
>
> Larry Flesner
>
>
> ___
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> options
>