KR> Roger's carb

[Oscar Zuniga]

Roger: what don't you like about the speedometer cable adjustment of the 
mixture?  Is it not fine enough?  You could add a small lever arm to the 
mixture screw and make the mixture adjust by push-pull with a standard vernier 
type mixture knob.  Depending on how long you made the lever you could push the 
mixture knob in/out by a full 3" of stroke and only move the mixture screw by 
1/4 turn if you needed finer adjustment. 
Also, I see from the HD carb (as on the 1960s Harley Sportsters) exploded view 
that the idle adjustment screw is on top of the carb.  How do you get to it 
with your setup?  Looks tight ;o)

-Oscar

KR> First flight

[Chris Gardiner]

Congratulations Robert!
You have just joined a very exclusive club of KR pilots !
Cheers
Chris Gardiner
KR2S 250 hours

Sent from my iPad

> On Oct 12, 2015, at 9:53 AM, Robert Pesak via KRnet  
> wrote:
> 
> 
> 
> Hi everyone, I made my first flight yesterday and approximately 1:30 p.m. I 
> guess now I can a log one takeoff and one landing.
> 
> 
> Sent via the Samsung GALAXY S? 5, an AT 4G LTE smartphone
> ___
> 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> First flight

[Mike Sylvester]

Robert, Congratulations. I'm dying here, I need more details than that. Your 
probably waiting on the adrenaline to wear off so you can type. LOL.

Mike Sylvester 
kr2s builder 
Birmingham,AL.

Cell no.205-966-3854


> Date: Mon, 12 Oct 2015 08:53:59 -0500
> To: KRnet at list.krnet.org
> Subject: KR> First flight
> From: krnet at list.krnet.org
> CC: rkpsk1 at att.net
> 
> 
> 
> Hi everyone, I made my first flight yesterday and approximately 1:30 p.m. I 
> guess now I can a log one takeoff and one landing.
> 
> 
> Sent via the Samsung GALAXY S? 5, an AT 4G LTE smartphone
> ___
> 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> First flight

[bjoenunley]

Congratulations on your first flight!
We are happy for you.


Joe Nunley?CW2 US Army RetiredBaker JROTC Instructor?Baker Florida?

 Original message 
From: Robert Pesak via KRnet  
List-Post: krnet@list.krnet.org
Date: 10/12/2015  8:53 AM  (GMT-06:00) 
To: "KRnet at list krnet. org"  
Cc: Robert Pesak  
Subject: KR> First flight 


??? 
Hi everyone,?I made my first flight yesterday and approximately 1:30 p.m. I 
guess now I can a log one takeoff and one landing.

KR> Battery

[brian.kraut at eamanufacturing.com]

Here are the other Odyssey batteries.  If going the lead acid route one
of the slightly smaller and lighter ones would also be a good choice.



http://www.odysseybattery.com/extreme_battery_specs.aspx



 Original Message 
Subject: Re: KR> Battery
From: Flesner via KRnet 
List-Post: krnet@list.krnet.org
Date: Mon, October 12, 2015 3:01 pm
To: KRnet 
Cc: Flesner 

At 01:46 PM 10/12/2015, you wrote:

>I have a PC680 battery in my Mustang 2 and it is great and small. It is
>pretty much the standard RV battery.
++

The Odyssey (PC680) is probably the very best choice in batteries for 
the KR. That's the battery I use in my 
KR. https://dl.dropboxusercontent.com/u/32133949/IMG_8083.jpg I 
question the reserve capacity of the LI-on and other types of Lithium 
batteries to carry the load if the alternator goes south. I will 
trust my little 4 AMP hour backup battery (seen just above the 
Odyssey in the photo) to be ready and able to keep my fuel pump(s) 
and other optional equipment running if and when I loose my 
electrical system. To me it's a known quantity. It happened once, 
the engine never sputtered, and I landed safely. I keep it charged 
while flying and can keep it charged with alternator output if I need 
to bring it on line.

Larry Flesner 


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change options

KR> Battery

[brian.kraut at eamanufacturing.com]

KR> First flight

[Luis Claudio]

Congratulations Robert. I so look forward to be able to say that. Blue skies

Luis R Claudio

Performance Pulsation Control, Inc.
490 Clay Rd, |Sunnyvale, TX? 75182|
Phone: 972.226.7526 ?| Cell 972-838-7143 | ?
Check out our new updated website: www.performancepulsation.com 
lclaudio at performancepulsation.com
?
?

?
***CONFIDENTIALITY NOTICE***
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this email in error, please notify us by reply email immediately and 
permanently delete this message and any attachments.



-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Robert Pesak 
via KRnet
Sent: Monday, October 12, 2015 8:54 AM
To: KRnet at list krnet. org
Cc: Robert Pesak
Subject: KR> First flight



Hi everyone,?I made my first flight yesterday and approximately 1:30 p.m. I 
guess now I can a log one takeoff and one landing.


Sent via the Samsung GALAXY S? 5, an AT 4G LTE smartphone 
___
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KR> Battery

[brian.kraut at eamanufacturing.com]

I have a PC680 battery in my Mustang 2 and it is great and small.  It is
pretty much the standard RV battery.  They make smaller versions also. 
They are heavy though (not as heavy as most lead acid, but heavy none
the less).


If I was buying a new battery today I would get a LiFePo4 (Lithium Iron
Phosphate).  These are almost as light and high capacity as Lithium ion
and Lithium Polymer batteries, but they are much safer.  Li and LIPo
tend to explode or catch fire when abused so I do not recommend them,
but LiFePo4 are safe.


There are many Lithium iron phosphate batteries you can buy today, but
they need special balance chargers and other protection methods.  The
only ones I know of that have all of that already built into the battery
are from EarthEx. 
http://earthxmotorsports.com/product-category/experimental-aircraft



I have one of the small ETX12B batteries that I bought for my avionics
backup.  It is 1.3 pounds and can back up all I need for IFR for longer
than my engine can run on a tank of fuel.  I will be getting one of
their larger batteries for engine starting when my PC680 dies (which
from experience of others will not be for many years).



 Original Message 
Subject: KR> Battery
From: Mike Stirewalt via KRnet 
List-Post: krnet@list.krnet.org
Date: Mon, October 12, 2015 2:15 am
To: krnet at list.krnet.org
Cc: laser147 at juno.com

This thing was in unedited and unfinished form and got sent by dwarves
while I was sleeping. Damn dwarves. 

So I'm cleaning it up just now and re-sending. Please ignore the earlier
posting. Dwarves did it.

KR> Battery

[brian.kraut at eamanufacturing.com]

KR> First flight

[Chris Prata]

wow that is a VERY big deal!  recently I made my "first purchase" (plans). 
which is the opposite end of a spectrum!  lol

congrats
> 
> 
> Hi everyone, I made my first flight yesterday and approximately 1:30 p.m. I 
> guess now I can a log one takeoff and one landing.
> 

KR> Roger's carb

[Roger Bulla]

Great pictures from the Gathering, Mark!  That carb on Roger's plane has had 
me zooming in to look at it from all angles for half an hour.  No idea, but 
it's a side draft with mixture control and a choke.  Looks like he has the 
mixture control set up like the Zenith, with a twisting of the cockpit knob 
to screw the needle in and out and a tension spring on the needle screw. 
Oscar Zuniga
Medford, OR

Oscar

The carb is an old Tillotson off of an old Harley I believe. Someone gave it 
to me many years ago, so thought I would give a try.

This is a Tillotson HD that uses a pressure control diaphragm. The HDs have 
a 37 mm venturi. The tube on the bottom is a balance tube to let the 
diaphragm see the same pressure as the intake sees. The pressure deferential 
created by the venturi will regulate the fuel available to the engine. I got 
the idea of the balance tube from pictures of Ellison carbs. They have the 
same diaphragm and balance tube built in. Without the tube, the diaphragm 
will close when the throttle is pulled back at higher airspeeds because of 
the ram air increasing the pressure on the fuel side of the diaphragm, 
causing the engine to quit until the throttle is opened back up.  This 
always raises my stress to dangerous levels. (The port into the intake must 
be facing the incoming airstream.) The tube is only for balance between 
venturi pressure and ram air, not altitude compensation.

Other that the use of a speedometer for the mixture control, this has been a 
very good carburetor. It runs smooth at all power settings and I can adjust 
the mixture in flight right where I want to run, and with the choke it 
starts and idles very well. The fuel distribution seems spot on. All 
cylinders burn the same. I have a 1.5 psi fuel pump to feed the carb, with a 
return line for excess fuel, but also have it plumbed to gravity feed as a 
backup. It seems to run fine on gravity feed. On the Harley you have only 
about six to eight inches of head pressure. I have seen these on Ebay, but 
have noticed the prices being asked are going up.

I'm going to continue using the Tillotson, but I am trying to come up with a 
better mixture control, than a speedometer cable.

Roger Bulla

-Original Message- 
From: Oscar Zuniga via KRnet
Sent: Sunday, October 11, 2015 11:21 AM
To: krnet at list.krnet.org
Cc: Oscar Zuniga
Subject: KR> Roger's carb



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KR> First flight

[Robert Pesak]

Hi everyone,?I made my first flight yesterday and approximately 1:30 p.m. I 
guess now I can a log one takeoff and one landing.


Sent via the Samsung GALAXY S? 5, an AT 4G LTE smartphone

KR> Skin in the game

[Mike Arnold]

BTW the front deck is glass and the turtle is glass.
On Oct 12, 2015 8:09 AM, "Mike Arnold via KRnet" 
wrote:

> Hey you KR builders what kind of finish or skin are you guys using. All I
> have now is ply.
> ___
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> please see other KRnet info at http://www.krnet.org/info.html
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> options
>

KR> Skin in the game

[Mike Arnold]

Hey you KR builders what kind of finish or skin are you guys using. All I
have now is ply.

KR> First flight

[Chris Kinnaman]

Congrats & well done!


On 10/12/2015 7:53 AM, Robert Pesak via KRnet wrote:
>  
> Hi everyone, I made my first flight yesterday and approximately 1:30 p.m. I 
> guess now I can a log one takeoff and one landing.
>
>
> Sent via the Samsung GALAXY S? 5, an AT 4G LTE smartphone
> ___
> 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> First flight

[Steve G.]

Congratulations Robert!  A well deserved reward for your perseverance on a 
beautiful build!  Well, give us the details???

Regards,

Steve Glover

Sent from my electronic leash. 

> On Oct 12, 2015, at 06:53, Robert Pesak via KRnet  
> wrote:
> 
> 
> 
> Hi everyone, I made my first flight yesterday and approximately 1:30 p.m. I 
> guess now I can a log one takeoff and one landing.
> 
> 
> Sent via the Samsung GALAXY S? 5, an AT 4G LTE smartphone
> ___
> 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> Battery

[laser147 at juno.com]

This thing was in unedited and unfinished form and got sent by dwarves
while I was sleeping.  Damn dwarves.  

So I'm cleaning it up just now and re-sending.  Please ignore the earlier
posting.  Dwarves did it.

One of Mark's pictures had a lithium battery in it and since batteries
have been on my mind lately I thought I would recount my experiences
lately.  I left off with the previous email the dwarves got ahold of
saying something about Ken Cottle having built my battery box on 335KC to
hold a garden tractor battery.  The reason for the bigger battery was
because when he built the plane the starters that were available were not
geared.  They were direct drive and needed a lot of amps - that's what he
told me about his reasons for using a larger battery.  Motorcycle-sized
batteries were the norm back then just as they are now for KR's.  As for
why he mounted it on the hat shelf, it wasn't for CG reasons as I
suspected but rather simply because there was no room for such a large
battery on the firewall.  

Having the larger-than-normal sized battery box has been a huge advantage
once I started adding electrical loads to the plane.  With the Diehl
alternator/generator (I've been calling it an alternator but somebody
just told me it's a generator because it uses magnets) not turning very
fast, the battery has to carry the load of all the things that are on at
night when coming in for landing with power at idle.  The secondary
ignition is 8 amps just by itself, at idle.  The two landing/taxi lights
are 50 watts each, the position lights draw a bunch of amps, plus
transponder, strobes, radio & linear amplifier, beacon, all the panel
stuff like GPS, instrument lights, fuel flow meter, etc.  I calculated
the load a long time ago and have it all noted in the logs but things
have changed so need to do that again, especially now that I'm putting a
new battery in.  It's time for a fresh evaluation of my primary
electrical system.  

I do have a secondary, back-up electrical system which (I thought) was
completely separate from my primary system.  I designed it that way but
somehow I've accidentally got them linked since the last time I turned
the secondary system on it engaged the solenoid on my primary system. 
Somehow along the way, over the years, I've connected something that
compromised the isolation of each system so that whole thing needs to be
re-thought and re-done and perhaps done away with entirely.  The
secondary system has it's own 20+ Ah battery that was intended just to
drive a fuel pump and the artificial horizon.  Since I put that system in
I have learned that the engine will run just fine with the Ellison on top
without any fuel pressure beyond siphon pressure.  Fuel level in the
header tank is below the level of the Ellison yet the engine will
continue to run with the fuel pumps turned off . . . so darned if I know
why it does.  I didn't think it would, which is why I put in the
secondary system.  As for driving the horizon, there are better solutions
available now than back when I put this electrical system together.  That
little Dynon D2 for instance.  You can just about replace the whole panel
with one of those and it'll run on its own built-in lithium-ion battery. 


Back when I was looking for the best battery I could find with the
dimensions of a garden tractor battery, I found only one that was
exceptional.  It was the battery for the Mazda Miata 1991-2005.  It was
AGM, 32 Ah with 400 CCA at 32?.  I think it was 2007 that I found that
battery at Powerstride, a company that has a location here in San Diego. 
I paid about $185.  The Miatas came from Japan with Panasonic AGM's
installed but those batteries are unavailable here in the U.S. so dealers
have been recommending one made by East Penn with pretty much the same
specs as the one I've mentioned above from Powerstride.  Since I bought
mine, other suppliers like East Penn have brought their products to
market so prices have dropped and variety has increased.  This "Miata
Battery" (which is how it is known and referred to in the battery world)
now comes in both AGM and flooded cell designs.  Length and width are
standard for this battery but height varies in some cases.  The battery I
bought in 2007 has been slowly failing over the last year or two causing
many and varied electrical gremlins.  It always took a full charge and
kept it so I haven't realized (until my trip to MMV and another trip to
Big Bear immediately following) my electrical problems have been due to
the battery.  I've been chasing grounds and and looking for other
possible sources of problems.  I almost sent my TruTrak artificial
horizon back to the shop since it was acting up intermittently but that
would have been $400 wasted so I'm glad I didn't.  When batteries start
failing the results are all over the place.  Very tricky. This will be
the second time a failing battery has fooled me into thinking I had
problems from sources other than the battery.  The other