Folks; the KR2S-plans I have, have been spoken for... Thanks for all the
interest...
-- Larry Colonial Beach, VA
On Monday, March 25, 2019, 12:00:31 PM EDT, krnet-requ...@list.krnet.org
<krnet-requ...@list.krnet.org> wrote:
Send KRnet mailing list submissions to
krnet@list.krnet.org
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of KRnet digest..."
Today's Topics:
1. Re: KRnet Digest, Vol 7, Issue 65 (John Crossen)
2. Vibration (Mike Sylvester)
3. Re: Vibration (Flesner)
4. Re: Vibration (Steven Bedford)
5. Rotax 912 (Kayak)
6. Re: Rotax 912 (Flesner)
7. Re: Rotax 912 (Mark Wegmet)
8. vibration (Mike Sylvester)
9. Re: vibration (Jeff Scott)
10. Re: RPM source for use with Dynon Skyview (Pete Klapp)
11. Re: RPM source for use with Dynon Skyview (Pete Klapp)
12. Re: RPM source for use with Dynon Skyview (Jeff Scott)
13. Re: RPM source for use with Dynon Skyview (Pete Klapp)
14. Re: Rotax 912 (Chris Gardiner)
15. Re: Rotax 912 (Eduardo Barros)
----------------------------------------------------------------------
Message: 1
Date: Sun, 24 Mar 2019 16:43:49 +0000 (UTC)
From: John Crossen <jbcros...@yahoo.com>
To: OldBird via KRnet <krnet@list.krnet.org>
Subject: Re: KR> KRnet Digest, Vol 7, Issue 65
Message-ID: <1573289979.10152777.1553445829...@mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8
Larry,Tried to email you off line, at the email address you gave.? Email was
returned undeliverable.? Is there another address?? Or write me direct?
jbcros...@yahoo.com.? I'm interested.John Crossen
On Saturday, March 23, 2019, 10:36:46 AM GMT-4, OldBird via KRnet
<krnet@list.krnet.org> wrote:
I've lurked here for many years, but having blow through70 a year or so ago it
is now clear I'll never build a KR.? I have an undisturbed copy of KR2 plans
aswell as the KR2S supplemental drawings sold to me by Jeannette?atOshkosh
`93.? I'd prefer they go tosomeone who is chomping at the bit to use them (not
a collector please, Ialready do that...).
I probably posted this all wrong, but price very negotiable -- I just want them
tobe used.? Talk to me --dcstrng1...@yahoo.com
-- Larry Colonial Beach, VA
? ? On Thursday, March 21, 2019, 12:00:41 PM EDT,
<krnet-requ...@list.krnet.org> wrote:?
Send KRnet mailing list submissions to
??? krnet@list.krnet.org
To subscribe or unsubscribe via the World Wide Web, visit
??? http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
or, via email, send a message with subject or body 'help' to
??? krnet-requ...@list.krnet.org
You can reach the person managing the list at
??? krnet-ow...@list.krnet.org
When replying, please edit your Subject line so it is more specific
than "Re: Contents of KRnet digest..."
Today's Topics:
? 1. Re:? KR Plans (Gerald Campbell)
----------------------------------------------------------------------
Message: 1
Date: Thu, 21 Mar 2019 13:16:26 +0000
From: Gerald Campbell <gcampbel...@hotmail.com>
To: MITCH MOORE <mitch.mo...@comcast.net>, KRnet
??? <krnet@list.krnet.org>
Subject: Re: KR> KR Plans
Message-ID:
???
<mwhpr1601mb11833e2a2b6604805c70be33b7...@mwhpr1601mb1183.namprd16.prod.outlook.com>
???
Content-Type: text/plain; charset="us-ascii"
Hello
I am interested in the plans if still available emails details to
gcampbel...@hotmail.com
Thanks
Gerald
________________________________
From: KRnet <krnet-boun...@list.krnet.org> on behalf of MITCH MOORE via KRnet
<krnet@list.krnet.org>
Sent: Wednesday, March 13, 2019 2:54 AM
To: KRnet
Cc: MITCH MOORE
Subject: KR> KR Plans
Ralph wrote:
>
> He also has a set of plans for sale if anyone is interested.
>
> Ralph DeFrain
Ralph, I'm interested in the KR plans that your friend has for sale.? Please
email me offlist with details.
Thanks,
Mitch
mitch.mo...@comcast.net
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------------------------------
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------------------------------
End of KRnet Digest, Vol 7, Issue 65
************************************
?
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------------------------------
Message: 2
Date: Sun, 24 Mar 2019 17:11:04 +0000
From: Mike Sylvester <shagste...@hotmail.com>
To: KRnet <krnet@list.krnet.org>
Subject: KR> Vibration
Message-ID:
<cy4pr05mb3607e79ef1be93dab1c51542c4...@cy4pr05mb3607.namprd05.prod.outlook.com>
Content-Type: text/plain; charset="iso-8859-1"
Hey Guys, Recently I have picked up a pretty strong vibration right before lift
off and soon after landing. Having looked for it and not finding a problem I
just figured it was tail wheel shimmy on our grooved runway. Yesterday, I
hosted the local EAA Chapter 152 cookout. As things where winding down I took
my friend Larry up in the KR. Larry only weighs 135 lbs. Everything went fine
but I could feel the vibration again on landing. Rolling the KR back into the
hanger and getting ready to close up shop I ask Larry to straighten the rudder
and tailwheel for me. I usually just kick it around straight but trying to be
gentle he knelt down and picked it up by the tailwheel. That's when he called
out that the tailwheel assembly is loose. The Matco has one bolt holding it to
the leaf spring and it had gotten a bit loose letting it move from side to
side. Just as soon as he pointed this out I knew my problem was solved. I guess
where I'm going with this is, If your plane is telling you something, Listen to
it. It was almost embarrassing that he found the problem by accident and I
didn't find it even when looking for it. Looking back I had checked it with
full tail weight on the assembly and wasn't able to see movement.
Mike Sylvester
kr2s builder
Birmingham,AL.
Cell no.205-966-3854
------------------------------
Message: 3
Date: Sun, 24 Mar 2019 13:22:26 -0500
From: Flesner <fles...@frontier.com>
To: krnet@list.krnet.org
Subject: Re: KR> Vibration
Message-ID: <6d79adf6-eb17-31d2-3bd6-2d31fc1d4...@frontier.com>
Content-Type: text/plain; charset=utf-8; format=flowed
On 3/24/2019 12:11 PM, Mike Sylvester via KRnet wrote:
the Matco has one bolt holding it to the leaf spring and it had gotten a bit
loose letting it move from side to side
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mike,
Is your leaf spring dressed to fit snugly in to the tail wheel assembly
"notch"? If not, there is a chance for side to side movement under load
and cause the bolt to loosen again.? Just a thought.
My KR started life with a Matco assembly 15 years ago.
http://myplace.frontier.com/~flesner/24.jpg
?The assembly didn't look quite right and I finally determined the
pivot bolt hole was not drilled "straight" but was at a slight angle
side to side.? I returned it for warranty and the new assembly I
received? had a larger diameter pivot bolt.? Not sure why the change.? I
later converted to an Aviation Products unit to knock two pounds off the
tail.
https://www.dropbox.com/s/y1bo4ljo7zum9z0/IMG_8762.JPG?dl=0
When Matco came out with a 6" pneumatic wheel I had my tail wheel arm
lengthened about 1 1/4" to accept the larger wheel and that seems to be
an ideal setup, light weight assembly with 6" wheel. The only problem I
experienced with the pneumatic wheel was tire slipping on the rim and
causing the tube to go flat.? Matco claimed I wasn't keeping enough air
pressure in the tire but I wasn't convinced.? My solution was to coat
the tire bead and rim with glue from a tire patch kit and I've not had
another flat in two years, since Oshkosh 2017.? Another thing, Matco
says if you have a flat you need to replace both tire and tube so they
won't sell the tube separately but again, I didn't find that necessary
as the tire never suffered any damage.? I flew home from Oshkosh with a
flat tail wheel tire, two takeoffs and two landings with no tire or rim
damage. I found the same tube they supply to be a wheel chair tube and
purchased on line for $7.50 each.
That's my story and I'm sticking to it...........
Larry Flesner
------------------------------
Message: 4
Date: Sun, 24 Mar 2019 19:26:54 +0000
From: Steven Bedford <s1bedf...@msn.com>
To: Mike Sylvester via KRnet <krnet@list.krnet.org>
Subject: Re: KR> Vibration
Message-ID:
<cy4pr1801mb18489826885301457a2af773fb...@cy4pr1801mb1848.namprd18.prod.outlook.com>
Content-Type: text/plain; charset="utf-8"
Mike said,
Matco has one bolt holding it to the leaf spring and it had gotten a bit loose
letting it move from side to side......
My Matco tailwheel assembly will accept 2 different widths of tail springs and
I had to make a spacer to fit under my wider spring to take up the space so the
spring would have full contact. I guess the bolt would come loose without the
spacer.
Steven Bedford
Building kr2s corvair
Woodland Park, CO
s1bedf...@msn.com<mailto:s1bedf...@msn.com>
Sent from my Verizon 4G LTE Smartphone
------------------------------
Message: 5
Date: Sun, 24 Mar 2019 16:54:16 -0400
From: Kayak <kayak1...@gmail.com>
To: KRnet <krnet@list.krnet.org>
Subject: KR> Rotax 912
Message-ID:
<caf6k7fq8x4pzvmcp4-xyir9phv84db2wr_p2rni4wqmq8ov...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
hey all, I did look at some posts in the archives, but was just wondering
lately about why we dont see more Rotax 912 or 914/ turbo in the KR's.
80/100/115HP and he weight is comparable but these have very good
reliability. Only downside is that they can be expensive even bought used.
Yes I know that a radiator is required but that could I supposed be slung
underneath in a cowl like a P51...
Thought I'd toss this out there and see what the institutional knowledge
base here comes up with...
------------------------------
Message: 6
Date: Sun, 24 Mar 2019 16:33:55 -0500
From: Flesner <fles...@frontier.com>
To: krnet@list.krnet.org
Subject: Re: KR> Rotax 912
Message-ID: <7afe807f-961e-c1a8-f96a-77a10e646...@frontier.com>
Content-Type: text/plain; charset=utf-8; format=flowed
On 3/24/2019 3:54 PM, Kayak via KRnet wrote:
> was just wondering
> lately about why we dont see more Rotax 912 or 914/ turbo in the KR's.
> 80/100/115HP and he weight is comparable but these have very good
> reliability.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Knowing the KR crowd, I'd say it's because $16,500 to $20,000 new for 80
to 100 hp is a bit on the pricey side.? Even used at half price is still
what most builders spend on that level hp new.
I wish I had the money for a Franklin 4A-235, 125 hp for $15,900.? A
lightweight 2S with that kind of hp and a good aerodynamic cleanup and
you could be dusting RV's.
Hey, I can dream, can't I?
Larry Flesner
------------------------------
Message: 7
Date: Sun, 24 Mar 2019 17:42:36 -0500
From: "Mark Wegmet" <markweg...@charter.net>
To: "'KRnet'" <krnet@list.krnet.org>
Subject: Re: KR> Rotax 912
Message-ID:
<!&!AAAAAAAAAAAYAAAAAAAAADOVQWmT51NLl4MKUYY9Vs3CgAAAEAAAAPTId2Skmd1Prl5cBAgOMEwBAAAAAA==@charter.net>
Content-Type: text/plain; charset="utf-8"
Just my opinion, but to respond...
---------------------------------------------------------------------------------------------
Larry F wrote....
Knowing the KR crowd, I'd say it's because $16,500 to $20,000 new for 80
to 100 hp is a bit on the pricey side. Even used at half price is still
what most builders spend on that level hp new.
I wish I had the money for a Franklin 4A-235, 125 hp for $15,900. A
lightweight 2S with that kind of hp and a good aerodynamic cleanup and
you could be dusting RV's.
Hey, I can dream, can't I?
Larry Flesner
> --------------------------------------------------------------------------------------------------------------------------------
Not to mention, the motors cited cost as much as some folks have in the KR they
fly.... nice to see the rich guys think the KR series is a viable flyer!! :). I
had sticker shock big time when Garmin announced their "affordable"
experimental glass panel 10 years ago+ @ 25K!
I'm still working on projects started by others... hope to fly before I die!
Mark W.
952MW
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
------------------------------
Message: 8
Date: Sun, 24 Mar 2019 23:08:37 +0000
From: Mike Sylvester <shagste...@hotmail.com>
To: KRnet <krnet@list.krnet.org>
Subject: KR> vibration
Message-ID:
<cy4pr05mb3607b6336fe5125a212795dec4...@cy4pr05mb3607.namprd05.prod.outlook.com>
Content-Type: text/plain; charset="iso-8859-1"
Went back out to the airport today and took another look at the tailwheel.
Everything should be fine now that I've tightened the dog snot out of it. I'll
also check it more frequently than every 2 years. ( Dog Snot... Southern slang
for pretty darn tight. )
Mike Sylvester
kr2s builder
Birmingham,AL.
Cell no.205-966-3854
------------------------------
Message: 9
Date: Mon, 25 Mar 2019 00:37:52 +0100
From: "Jeff Scott" <jscott.pla...@gmx.com>
To: krnet@list.krnet.org
Subject: Re: KR> vibration
Message-ID:
<trinity-9e606d14-9cc2-434e-af5c-af20fc6381aa-1553470659809@3c-app-mailcom-bs09>
Content-Type: text/plain; charset=UTF-8
Man, if you got dog snot out if it, it's tight!
> Cc: "Mike Sylvester" <shagste...@hotmail.com>
> Subject: KR> vibration
>
> Went back out to the airport today and took another look at the tailwheel.
> Everything should be fine now that I've tightened the dog snot out of it.
> I'll also check it more frequently than every 2 years. ( Dog Snot... Southern
> slang for pretty darn tight. )
>
> Mike Sylvester
> kr2s builder
> Birmingham,AL.
>
> Cell no.205-966-3854
------------------------------
Message: 10
Date: Mon, 25 Mar 2019 00:53:10 +0000
From: Pete Klapp <pke...@hotmail.com>
To: KRnet <krnet@list.krnet.org>
Subject: Re: KR> RPM source for use with Dynon Skyview
Message-ID:
<sn6pr0102mb3504c575631fe39f69718b58ca...@sn6pr0102mb3504.prod.exchangelabs.com>
Content-Type: text/plain; charset="utf-8"
Jeff
Thanks for the info. That?s a good idea and starting point
Sent from my iPhone
> On Mar 22, 2019, at 9:13 PM, Jeff Scott via KRnet <krnet@list.krnet.org>
> wrote:
>
>
>> Subject: KR> RPM source for use with Dynon Skyview
>>
>> Netters
>> Need to find out what others have used as a rpm source that works with a
>> Dynon Skyview. The manual I have dated September 2013 for use with firmware
>> version 7 is not very specific. I know that William has suggested a flywheel
>> tooth counter like the Stewart automotive. Is there any other ways to pick
>> up a signal. I am using a 3.0 liter Corvair as my engine. Can I get a signal
>> form the coils or the dual electronic pickups in my distributor? Any light
>> that you can shed would be helpful.
>> Pete Klapp
>
>>
> -----------------------------
>
> Pete,
>
> I've not wired a Dynon, but in your case, I would assume the + side of an
> ignition coil to be the equivalent of the P-lead on a magneto. The voltage on
> the primary side of your coil may be a bit lower than the voltage on a
> P-lead, but I would use a 30 k? "pull up" resistor the same as instructed to
> connect a "P-lead" and go from there using the same instructions as outlined
> for connecting to a "P-lead", then configure for a 6 cyl engine. The pulse
> count should be the same as any 6 cyl Continental or Lycoming firing from a
> magneto.
>
> -Jeff Scott
>
> _______________________________________________
> Search the KRnet Archives at
> https://www.mail-archive.com/krnet@list.krnet.org/.
> Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change
> options.
> To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
------------------------------
Message: 11
Date: Mon, 25 Mar 2019 00:57:57 +0000
From: Pete Klapp <pke...@hotmail.com>
To: KRnet <krnet@list.krnet.org>
Subject: Re: KR> RPM source for use with Dynon Skyview
Message-ID:
<sn6pr0102mb3504da9ff4677b3877074de6ca...@sn6pr0102mb3504.prod.exchangelabs.com>
Content-Type: text/plain; charset="utf-8"
Thanks Joe I?ll chew on this info before doing anything
Sent from my iPhone
> On Mar 24, 2019, at 11:07 AM, n357cj via KRnet <krnet@list.krnet.org> wrote:
>
> HI Pete/Jeff,
> I was not going to post to this thread but here I am. I have my EIS wired
>as noted from the negative of the coils (daul). i have a small toggle swithch
>right next to the tach on the panel when I switch ignitions I have to switch
>the signal to the EIS also to have a reading. I wired it this way as it was
>the most common way when I was growing up working on cars. I understood as
>Jeff has re-confirmed that it is basicly the way a mag works also. The
>disclaimer is that William Wynn strongly (my word) urges a alternate method,
>usually a tooth counter, to drive the tach. Granted this would elminate my
>need for the swich on the panel. The caution that I undersatand is the
>possibility/fear of a short in the wire from the tach or the instrument that
>takes the coil out and there by stopping the fan up front. Just because it
>hasn't happened does it mean it won't. So decide fro yourselves the best
>method.
> Joe Horton,
> N357CJ
>
>
> ----- Original Message -----
> From: "KRnet" <krnet@list.krnet.org>
> To: "KRnet" <krnet@list.krnet.org>
> Cc: "Jeff Scott" <jscott.pla...@gmx.com>
> Sent: Sunday, March 24, 2019 10:11:25 AM
> Subject: Re: KR> RPM source for use with Dynon Skyview
>
> It occurred to me last night while I was working through some wiring diagrams
> for an ignition problem that I put an error in this advice to Pete. It is
> always the - (ground) side of the ignition coil that is switched, so it is
> the - side of the ignition coil that would be used as a tach signal and the
> equivalent of the "P-lead" from a magneto as a source for wiring the tach
> signal. I'm surprised about a half a dozen of the scholars here didn't
> correct me.
>
> -Jeff Scott
>
> -----------------------------
>
>> Pete,
>>
>> I've not wired a Dynon, but in your case, I would assume the + side of an
>> ignition coil to be the equivalent of the P-lead on a magneto. The voltage
>> on the primary side of your coil may be a bit lower than the voltage on a
>> P-lead, but I would use a 30 k? "pull up" resistor the same as instructed to
>> connect a "P-lead" and go from there using the same instructions as outlined
>> for connecting to a "P-lead", then configure for a 6 cyl engine. The pulse
>> count should be the same as any 6 cyl Continental or Lycoming firing from a
>> magneto.
>>
>> -Jeff Scott
> -----------------------------
>
>>
>
> _______________________________________________
> Search the KRnet Archives at
> https://www.mail-archive.com/krnet@list.krnet.org/.
> Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change
> options.
> To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
------------------------------
Message: 12
Date: Mon, 25 Mar 2019 03:32:36 +0100
From: "Jeff Scott" <jscott.pla...@gmx.com>
To: krnet@list.krnet.org
Subject: Re: KR> RPM source for use with Dynon Skyview
Message-ID:
<trinity-dad475ff-0b98-4e1c-be9c-01f349e24698-1553481156492@3c-app-mailcom-bs09>
Content-Type: text/plain; charset=UTF-8
Electric tachs have been known to short, which would take down the ignition
coil it's tied to. I've experienced that first hand. However, you are wiring
to a Dynon unit, and Dynon already thought of that. That's why they recommend
using a 30 k? "pull up" resistor. The Dynon unit isn't going to draw any
current as it only reads signal voltage and requires virtually no amperage. A
30 k? resistor as shown in the installation manual should keep a shorted tach
from taking down the ignition. That's why Dynon recommends using the resistor.
It protects the Dynon from the ignition, and the ignition from the Dynon unit,
but still allows the Dynon to read the voltage switching up and down at the
ground side of the coil. If you are concerned about the wire getting shorted,
put the resistor right at the - terminal of the coil. If you do the math on
the 30 k? resistor at 12V, it only allows .0004 of an amp (4 ten thousandths of
an amp) of current to pass through. That isn't going to affect the ignition if
you had a dead short on the tach side of the resistor.
Hope this explains the installation well enough.
-Jeff Scott
> Sent: Sunday, March 24, 2019 at 7:57 PM
> From: "Pete Klapp via KRnet" <krnet@list.krnet.org>
> To: KRnet <krnet@list.krnet.org>
> Cc: "Pete Klapp" <pke...@hotmail.com>
> Subject: Re: KR> RPM source for use with Dynon Skyview
>
> Thanks Joe I?ll chew on this info before doing anything
>
> Sent from my iPhone
>
> > On Mar 24, 2019, at 11:07 AM, n357cj via KRnet <krnet@list.krnet.org> wrote:
> >
> > HI Pete/Jeff,
> > I was not going to post to this thread but here I am. I have my EIS wired
> >as noted from the negative of the coils (daul). i have a small toggle
> >swithch right next to the tach on the panel when I switch ignitions I have
> >to switch the signal to the EIS also to have a reading. I wired it this way
> >as it was the most common way when I was growing up working on cars. I
> >understood as Jeff has re-confirmed that it is basicly the way a mag works
> >also. The disclaimer is that William Wynn strongly (my word) urges a
> >alternate method, usually a tooth counter, to drive the tach. Granted this
> >would elminate my need for the swich on the panel. The caution that I
> >undersatand is the possibility/fear of a short in the wire from the tach or
> >the instrument that takes the coil out and there by stopping the fan up
> >front. Just because it hasn't happened does it mean it won't. So decide fro
> >yourselves the best method.
> > Joe Horton,
> > N357CJ
> >
> >
> > ----- Original Message -----
> > From: "KRnet" <krnet@list.krnet.org>
> > To: "KRnet" <krnet@list.krnet.org>
> > Cc: "Jeff Scott" <jscott.pla...@gmx.com>
> > Sent: Sunday, March 24, 2019 10:11:25 AM
> > Subject: Re: KR> RPM source for use with Dynon Skyview
> >
> > It occurred to me last night while I was working through some wiring
> > diagrams for an ignition problem that I put an error in this advice to
> > Pete. It is always the - (ground) side of the ignition coil that is
> > switched, so it is the - side of the ignition coil that would be used as a
> > tach signal and the equivalent of the "P-lead" from a magneto as a source
> > for wiring the tach signal. I'm surprised about a half a dozen of the
> > scholars here didn't correct me.
> >
> > -Jeff Scott
> >
> > -----------------------------
> >
> >> Pete,
> >>
> >> I've not wired a Dynon, but in your case, I would assume the + side of an
> >> ignition coil to be the equivalent of the P-lead on a magneto. The voltage
> >> on the primary side of your coil may be a bit lower than the voltage on a
> >> P-lead, but I would use a 30 k? "pull up" resistor the same as instructed
> >> to connect a "P-lead" and go from there using the same instructions as
> >> outlined for connecting to a "P-lead", then configure for a 6 cyl engine.
> >> The pulse count should be the same as any 6 cyl Continental or Lycoming
> >> firing from a magneto.
> >>
> >> -Jeff Scott
> > -----------------------------
> >
> >>
> >
> > _______________________________________________
> > Search the KRnet Archives at
> > https://www.mail-archive.com/krnet@list.krnet.org/.
> > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
> > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change
> > options.
> > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
> _______________________________________________
> Search the KRnet Archives at
> https://www.mail-archive.com/krnet@list.krnet.org/.
> Please see LIST RULES and 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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>
------------------------------
Message: 13
Date: Mon, 25 Mar 2019 04:41:22 +0000
From: Pete Klapp <pke...@hotmail.com>
To: KRnet <krnet@list.krnet.org>
Subject: Re: KR> RPM source for use with Dynon Skyview
Message-ID:
<sn6pr0102mb3504be13733d6607a2d4b0c4ca...@sn6pr0102mb3504.prod.exchangelabs.com>
Content-Type: text/plain; charset="ks_c_5601-1987"
Thanks again, that?s good information
Get Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: KRnet <krnet-boun...@list.krnet.org> on behalf of Jeff Scott via KRnet
<krnet@list.krnet.org>
Sent: Sunday, March 24, 2019 10:32:36 PM
To: krnet@list.krnet.org
Cc: Jeff Scott
Subject: Re: KR> RPM source for use with Dynon Skyview
Electric tachs have been known to short, which would take down the ignition
coil it's tied to. I've experienced that first hand. However, you are wiring
to a Dynon unit, and Dynon already thought of that. That's why they recommend
using a 30 k? "pull up" resistor. The Dynon unit isn't going to draw any
current as it only reads signal voltage and requires virtually no amperage. A
30 k? resistor as shown in the installation manual should keep a shorted tach
from taking down the ignition. That's why Dynon recommends using the resistor.
It protects the Dynon from the ignition, and the ignition from the Dynon unit,
but still allows the Dynon to read the voltage switching up and down at the
ground side of the coil. If you are concerned about the wire getting shorted,
put the resistor right at the - terminal of the coil. If you do the math on
the 30 k? resistor at 12V, it only allows .0004 of an amp (4 ten thousandths of
an amp) of current to pass through. That isn't going to affect the ignition if
you had a dead short on the tach side of the resistor.
Hope this explains the installation well enough.
-Jeff Scott
> Sent: Sunday, March 24, 2019 at 7:57 PM
> From: "Pete Klapp via KRnet" <krnet@list.krnet.org>
> To: KRnet <krnet@list.krnet.org>
> Cc: "Pete Klapp" <pke...@hotmail.com>
> Subject: Re: KR> RPM source for use with Dynon Skyview
>
> Thanks Joe I?ll chew on this info before doing anything
>
> Sent from my iPhone
>
> > On Mar 24, 2019, at 11:07 AM, n357cj via KRnet <krnet@list.krnet.org> wrote:
> >
> > HI Pete/Jeff,
> > I was not going to post to this thread but here I am. I have my EIS wired
> >as noted from the negative of the coils (daul). i have a small toggle
> >swithch right next to the tach on the panel when I switch ignitions I have
> >to switch the signal to the EIS also to have a reading. I wired it this way
> >as it was the most common way when I was growing up working on cars. I
> >understood as Jeff has re-confirmed that it is basicly the way a mag works
> >also. The disclaimer is that William Wynn strongly (my word) urges a
> >alternate method, usually a tooth counter, to drive the tach. Granted this
> >would elminate my need for the swich on the panel. The caution that I
> >undersatand is the possibility/fear of a short in the wire from the tach or
> >the instrument that takes the coil out and there by stopping the fan up
> >front. Just because it hasn't happened does it mean it won't. So decide fro
> >yourselves the best method.
> > Joe Horton,
> > N357CJ
> >
> >
> > ----- Original Message -----
> > From: "KRnet" <krnet@list.krnet.org>
> > To: "KRnet" <krnet@list.krnet.org>
> > Cc: "Jeff Scott" <jscott.pla...@gmx.com>
> > Sent: Sunday, March 24, 2019 10:11:25 AM
> > Subject: Re: KR> RPM source for use with Dynon Skyview
> >
> > It occurred to me last night while I was working through some wiring
> > diagrams for an ignition problem that I put an error in this advice to
> > Pete. It is always the - (ground) side of the ignition coil that is
> > switched, so it is the - side of the ignition coil that would be used as a
> > tach signal and the equivalent of the "P-lead" from a magneto as a source
> > for wiring the tach signal. I'm surprised about a half a dozen of the
> > scholars here didn't correct me.
> >
> > -Jeff Scott
> >
> > -----------------------------
> >
> >> Pete,
> >>
> >> I've not wired a Dynon, but in your case, I would assume the + side of an
> >> ignition coil to be the equivalent of the P-lead on a magneto. The voltage
> >> on the primary side of your coil may be a bit lower than the voltage on a
> >> P-lead, but I would use a 30 k? "pull up" resistor the same as instructed
> >> to connect a "P-lead" and go from there using the same instructions as
> >> outlined for connecting to a "P-lead", then configure for a 6 cyl engine.
> >> The pulse count should be the same as any 6 cyl Continental or Lycoming
> >> firing from a magneto.
> >>
> >> -Jeff Scott
> > -----------------------------
> >
> >>
> >
> > _______________________________________________
> > Search the KRnet Archives at
> > https://www.mail-archive.com/krnet@list.krnet.org/.
> > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
> > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change
> > options.
> > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
> _______________________________________________
> Search the KRnet Archives at
> https://www.mail-archive.com/krnet@list.krnet.org/.
> Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
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------------------------------
Message: 14
Date: Mon, 25 Mar 2019 07:30:39 -0400
From: Chris Gardiner <cgardn...@rogers.com>
To: KRnet <krnet@list.krnet.org>
Subject: Re: KR> Rotax 912
Message-ID: <d8f98ce9-9746-403e-a1db-30272dc60...@rogers.com>
Content-Type: text/plain; charset=us-ascii
Interesting!
I have a friend who has a Franklin Sport 4 engine for sale ( 400 hours on it ).
Always thought it would be too heavy for a KR2S.
He was building a Vision composite aircraft but recently gave up the dream due
to age.
Believe he only wants $3500 for it.
If anyone is interested, please contact me.
Thanks
Chris Gardiner
Sent from my iPhone
> On Mar 24, 2019, at 17:33, Flesner via KRnet <krnet@list.krnet.org> wrote:
>
>> On 3/24/2019 3:54 PM, Kayak via KRnet wrote:
>> was just wondering
>> lately about why we dont see more Rotax 912 or 914/ turbo in the KR's.
>> 80/100/115HP and he weight is comparable but these have very good
>> reliability.
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> Knowing the KR crowd, I'd say it's because $16,500 to $20,000 new for 80 to
> 100 hp is a bit on the pricey side. Even used at half price is still what
> most builders spend on that level hp new.
>
> I wish I had the money for a Franklin 4A-235, 125 hp for $15,900. A
> lightweight 2S with that kind of hp and a good aerodynamic cleanup and you
> could be dusting RV's.
>
> Hey, I can dream, can't I?
>
> Larry Flesner
>
>
> _______________________________________________
> Search the KRnet Archives at
> https://www.mail-archive.com/krnet@list.krnet.org/.
> Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
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------------------------------
Message: 15
Date: Mon, 25 Mar 2019 09:45:55 -0300
From: "Eduardo Barros" <edua...@kr2-egb.com.ar>
To: "KRnet" <krnet@list.krnet.org>
Subject: Re: KR> Rotax 912
Message-ID: <F2A0F27016AF4412B4C54F0BCCAC915B@EDUARDO>
Content-Type: text/plain; charset="utf-8"
Hello, in Argentina and EEUU can you buy a Rotax 912s 100 HP used in good
condition (with1500 to 2000 hs ) from $9.000 to $12.000, I bought one of this
and I ?m very happy with it, my plane is another plane
Can you see my motor in www.kr2-egb.com.ar
----- Original Message -----
From: Flesner via KRnet
To: krnet@list.krnet.org
Cc: Flesner
Sent: Sunday, March 24, 2019 6:33 PM
Subject: Re: KR> Rotax 912
On 3/24/2019 3:54 PM, Kayak via KRnet wrote:
> was just wondering
> lately about why we dont see more Rotax 912 or 914/ turbo in the KR's.
> 80/100/115HP and he weight is comparable but these have very good
> reliability.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Knowing the KR crowd, I'd say it's because $16,500 to $20,000 new for 80
to 100 hp is a bit on the pricey side. Even used at half price is still
what most builders spend on that level hp new.
I wish I had the money for a Franklin 4A-235, 125 hp for $15,900. A
lightweight 2S with that kind of hp and a good aerodynamic cleanup and
you could be dusting RV's.
Hey, I can dream, can't I?
Larry Flesner
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