KR> VW cylinder heads

[Mark Langford]

Tommy Waymack wrote:

> Pulled my VW heads with low compression. Discovered crack between the
>valve
> seats at the shortest point. My question is, does anyone repair them?Or
are
> they junk? I know this is a common problem, but it's my first time

I wrote this out as an email, but I've been meaning to do a webpage
regarding the VW, and decided to make this a start on it.  See
http://www.n56ml.com/n891jf/vw/ for the rather poor experience with VW heads
on the nose of a KR2...


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

KR> VW cylinder heads

[Rene Ffrench]

Hi Tommy,

I was upgrading my 1835 cc (92mm) hapi engine to have dual plugs and larger
valves and ran into delivery problems with 3 suppliers.

I finally got a set from Great Plains but then got billed for heads from a
custom VW aftermarket shop MOFOCO.com  when they delivered late.  They are
the  042 models with stainless valves and machined for the 12mm extra
plugs.  They are new, never mounted that cost right at $800 but since they
are extras to me maybe you can use them for $600.

I believe that they can be machined out to 94mm bores if that is what you
have.  They are now with 92mm bores.

Just an idea.

Cheers,
Rene Ffrench

N44774  KR2
Austin, Texas



Virus-free.
www.avast.com

<#DDB4FAA8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Wed, Apr 20, 2016 at 7:44 PM, JL via KRnet  wrote:

> And you all can send those cracked heads to me ; )
>
> Jeff Lange
>
> Sent from my iPhone
>
> > On Apr 20, 2016, at 4:25 PM, Brant Hollensbe via KRnet <
> krnet at list.krnet.org> wrote:
> >
> >
> >  question is,does anyone repair them?Or are
> > they junk?>
> >
> > There is no telling how deep that crack between the intake and exhaust
> valves.  It's time for a new cylinder head.
> >
> > Brant Hollensbe
> > DSM
> >
> > ___
> > 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
>



-- 
Cheers,
Rene'

lrffrench at gmail.com
+1-512-547-7164

KR> VW cylinder heads

[Robert7721]

Tommy,

I had a set which showed the same compression issue and had cracks. I had them 
reconditioned by a local engine shop. They said the cracks we common in VW 
heads and not a huge issue. They only lasted another 100 hours before the 
compression dropped again and I had them replaced with new. Engine was still 
running fine, but  they were losing a few rpm at full throttle, which was a 
little uncomfortable. 

Probably best just to get a new set.

Rob Schmitt
N1852Z


Sent from my iPad

> On Apr 20, 2016, at 3:19 PM, Tommy Waymack via KRnet  list.krnet.org> wrote:
> 
> Pulled my VW heads with low compression. Discovered crack between the valve
> seats at the shortest point.My question is,does anyone repair them?Or are
> they junk?I know this is a common problem,but it's my first time.Tommy W.
> ___
> 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> VW cylinder heads

[JL]

And you all can send those cracked heads to me ; )

Jeff Lange

Sent from my iPhone

> On Apr 20, 2016, at 4:25 PM, Brant Hollensbe via KRnet  list.krnet.org> wrote:
> 
> 
>  is,does anyone repair them?Or are
> they junk?>
> 
> There is no telling how deep that crack between the intake and exhaust 
> valves.  It's time for a new cylinder head.
> 
> Brant Hollensbe
> DSM
> 
> ___
> 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> VW cylinder heads

[Mike Arnold]

Saw a brand new one yesterday wow it looked nice. Wish they made new
corvair heads.
On Apr 20, 2016 3:20 PM, "Tommy Waymack via KRnet" 
wrote:

> Pulled my VW heads with low compression. Discovered crack between the valve
> seats at the shortest point.My question is,does anyone repair them?Or are
> they junk?I know this is a common problem,but it's my first time.Tommy W.
> ___
> 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> VW cylinder heads

[bhollensbe at mchsi.com]

There is no telling how deep that crack between the intake and exhaust valves.  
It's time for a new cylinder head.

Brant Hollensbe
DSM

KR> VW cylinder heads

[Tommy Waymack]

Pulled my VW heads with low compression. Discovered crack between the valve
seats at the shortest point.My question is,does anyone repair them?Or are
they junk?I know this is a common problem,but it's my first time.Tommy W.

KR> Facet fuel pump flare?

[Mark Jones]

The Facet is part 40108 and is made 3/8" flared and also AN-6.
The Earl's fuel filters are part number 230106 and are AN-6.

The Facet AN-6 is made for the racing world. Here is a link where you can 
get the AN-6 Facets:
https://www.pegasusautoracing.com/productdetails.asp?RecID=84


Mark Jones (N886MJ)
Stevens Point, WI

E-mail: flykr2s at charter.net
Web: www.flykr2s.com

-Original Message- 
From: Pete Klapp via KRnet
Sent: Wednesday, April 20, 2016 12:59 PM
To: krnet at list.krnet.org
Cc: Pete Klapp
Subject: KR> Facet fuel pump flare?




Mark Your fuel system page shows your Facet fuel pumps connected to fuel 
lines using AN fittings. I spoke with a "tech?" at Facet and he "thought 
they were a 45 deg SAE flare" as they only made fuel pumps for automotive 
use. Had you had any leaks or problems using the 37 deg AN fittings? Did you 
alter the AN fittings to 45 deg?Pete

___
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> Facet fuel pump flare?

[Larry Flesner]

At 01:55 PM 4/20/2016, you wrote:
>Pete Klapp wrote:
>
> > Mark Your fuel system page shows your Facet fuel pumps connected 
> to fuel lines using AN fittings. I spoke with a "tech?" at Facet 
> and he "thought they were a 45 deg SAE flare" as they only made 
> fuel pumps for automotive use. Had you had any leaks or problems 
> using the 37 deg AN fittings? Did you alter the AN fittings to 45 deg?<
+

The pumps at 
A.S. 
https://www.aircraftspruce.com/catalog/eppages/facetpumps.php?clickkey=9133#review_tab
 
appear to have a threaded fitting that would take whichever flair 
fitting you intend to use.  A quick phone call to A.S. would answer 
the question.  You simply pick the NPT you want and the min/max 
pressures you want.  Just make sure your flaring tool matches your fittings.

Larry Flesner  

KR> Facet fuel pump flare?

[Pete Klapp]

Mark Your fuel system page shows your Facet fuel pumps connected to fuel lines 
using AN fittings. I spoke with a "tech?" at Facet and he "thought they were a 
45 deg SAE flare" as they only made fuel pumps for automotive use. Had you had 
any leaks or problems using the 37 deg AN fittings? Did you alter the AN 
fittings to 45 deg?Pete

KR> KRnet Digest, Vol 4, Issue 100

[Randall Smith]

My first engine in my kr was a hapi. Crank broke at about 65 hrs. Prop left the 
plane. Funny feeling. Made it to a pasture. 

Sent from my iPhone

> On Apr 17, 2016, at 11:39 AM, svd via KRnet  wrote:
> 
> Thanks for the suggestion of the Revmaster crank and prop hub Mark.   
> Why?  Any other suggestions? Heads?  
> 
> It does seem a shame to rip apart the HAPI, but I keep getting ominous 
> opinions of its airworthiness.
> 
> 
> 
> 
> 
>> On Apr 17, 2016, at 9:00 AM, krnet-request at list.krnet.org wrote:
>> 
>> Send KRnet mailing list submissions to
>>krnet at 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-request at list.krnet.org
>> 
>> You can reach the person managing the list at
>>krnet-owner at 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.  94x82 vs 92x82 (svd)
>>  2. Re:  94x82 vs 92x82 (Mark Langford)
>> 
>> 
>> --
>> 
>> Message: 1
>> Date: Sat, 16 Apr 2016 16:31:56 -0700
>> From: svd 
>> To: "krnet at list.krnet.org" 
>> Subject: KR> 94x82 vs 92x82
>> Message-ID: 
>> Content-Type: text/plain; charset=utf-8
>> 
>> 
>> Is there any downside to moving to the 94mm cylinders vs 92mm's?  My son?s 
>> project currently has the 92x82 for 2180cc.  I can move to 94x82 for about 
>> the same cost as sticking with 92x82 in an upcoming rebuild. 
>> 
>> I?ve read that the 94mm cylinders are preferred because they are thicker 
>> walled.  
>> 
>> I am considering a pretty serious rebuild of the HAPI engine that came with 
>> my son?s KR project.
>> 
>> Specifically, we are intending to replace the crank and prop hub (with GP 
>> Top Bug and Force One), cylinder heads (with ?), alternator with GP, and 
>> cylinders with nikasil?s (not the LN Nikies).
>> 
>> Since the case will have to be machined to accept the Force One prop hub, 
>> shouldn?t be too much more to machine for the 94?s.
>> 
>> Cheers,
>> Owen
>> 
>> 
>> 
>> 
>> --
>> 
>> Message: 2
>> Date: Sat, 16 Apr 2016 20:28:53 -0500
>> From: "Mark Langford" 
>> To: "'KRnet'" 
>> Subject: Re: KR> 94x82 vs 92x82
>> Message-ID: <6657B9D418D943CE96CBB3D7C757FBFD at BASE755>
>> Content-Type: text/plain;charset="us-ascii"
>> 
>> Owen wrote:
>> 
 Is there any downside to moving to the 94mm cylinders vs 92mm's?  My son's
>> project currently has the 92x82 for 2180cc.  I can move to 94x82 for about
>> the same cost as sticking with 92x82 in an upcoming rebuild.<<
>> 
>> Several of us are running 94mm cylinders on the Corvair with no problems at
>> all.  You'll probably go through at least two sets of VW heads before you
>> need to touch the pistons/cylinders.  They are well proven.  I put 550 hours
>> on a set in N56ML and they still look great and have great compression.
>> 
>> I've built two GPASC engines (and torn them both down several times for hub
>> issues), and if I were going to build another VW, I'd use the Revmaster
>> crank and prop hub setup instead.  
>> 
>> Mark Langford
>> ML at N56ML.com
>> http://www.n56ml.com 
>> 
>> 
>> 
>> 
>> 
>> --
>> 
>> Subject: Digest Footer
>> 
>> ___
>> See KRnet list details at http://www.krnet.org/instructions.html
>> KRnet mailing list
>> KRnet at list.krnet.org
>> http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
>> 
>> 
>> --
>> 
>> End of KRnet Digest, Vol 4, Issue 100
>> *
> 
> 
> ___
> 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> KRnet Digest, Vol 4, Issue 100

[Randall Smith]

Unless you come in under about 525 empty a 65 horse is not enough. I am one 
that believes more hp more speed. I built my kr for speed. Weighed 480 at first 
flight. 1836 65hp. Then 2180 75hp. After 6 engine failures ( i ran them wide 
open) i went with a cont 85 broke a crank. Went with an O200. Should have done 
that from the beginning. I know have les palmers weigh in at 950 and has a sub 
ej22 will cruise at 160 mph top out at 185 mph level flight have had it to 215 
mph.

Sent from my iPhone

> On Apr 17, 2016, at 4:00 PM, don january via KRnet  
> wrote:
> 
> Keep 65 HP in mind, any more the KR doesn't need
> 
> On Sun, 4/17/16, krnet-request at list.krnet.org  list.krnet.org> wrote:
> 
> Subject: KRnet Digest, Vol 4, Issue 100
> To: krnet at list.krnet.org
> Date: Sunday, April 17, 2016, 11:00 AM
> 
> Send KRnet mailing list submissions
> to
> krnet at 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-request at list.krnet.org
> 
> You can reach the person managing the list at
> krnet-owner at 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.  94x82 vs 92x82 (svd)
>2. Re:  94x82 vs 92x82 (Mark
> Langford)
> 
> 
> --
> 
> Message: 1
> Date: Sat, 16 Apr 2016 16:31:56 -0700
> From: svd 
> To: "krnet at list.krnet.org"
> 
> Subject: KR> 94x82 vs 92x82
> Message-ID: 
> Content-Type: text/plain; charset=utf-8
> 
> 
> Is there any downside to moving to the 94mm cylinders vs
> 92mm's?  My son?s project currently has the 92x82 for
> 2180cc.  I can move to 94x82 for about the same cost as
> sticking with 92x82 in an upcoming rebuild. 
> 
> I?ve read that the 94mm cylinders are preferred because they
> are thicker walled.  
> 
> I am considering a pretty serious rebuild of the HAPI engine
> that came with my son?s KR project.
> 
> Specifically, we are intending to replace the crank and prop
> hub (with GP Top Bug and Force One), cylinder heads (with
> ?), alternator with GP, and cylinders with nikasil?s (not
> the LN Nikies).
> 
> Since the case will have to be machined to accept the Force
> One prop hub, shouldn?t be too much more to machine for the
> 94?s.
> 
> Cheers,
> Owen
> 
> 
> 
> 
> --
> 
> Message: 2
> Date: Sat, 16 Apr 2016 20:28:53 -0500
> From: "Mark Langford" 
> To: "'KRnet'" 
> Subject: Re: KR> 94x82 vs 92x82
> Message-ID: <6657B9D418D943CE96CBB3D7C757FBFD at BASE755>
> Content-Type: text/plain;   
> charset="us-ascii"
> 
> Owen wrote:
> 
>>> Is there any downside to moving to the 94mm
> cylinders vs 92mm's?  My son's
> project currently has the 92x82 for 2180cc.  I can move
> to 94x82 for about
> the same cost as sticking with 92x82 in an upcoming
> rebuild.<<
> 
> Several of us are running 94mm cylinders on the Corvair with
> no problems at
> all.  You'll probably go through at least two sets of
> VW heads before you
> need to touch the pistons/cylinders.  They are well
> proven.  I put 550 hours
> on a set in N56ML and they still look great and have great
> compression.
> 
> I've built two GPASC engines (and torn them both down
> several times for hub
> issues), and if I were going to build another VW, I'd use
> the Revmaster
> crank and prop hub setup instead.  
> 
> Mark Langford
> ML at N56ML.com
> http://www.n56ml.com 
> 
> 
> 
> 
> 
> --
> 
> Subject: Digest Footer
> 
> ___
> See KRnet list details at http://www.krnet.org/instructions.html
> KRnet mailing list
> KRnet at list.krnet.org
> http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org
> 
> 
> --
> 
> End of KRnet Digest, Vol 4, Issue 100
> *
> 
> ___
> 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> Facet_fuel_pump_flare?

[ml at n56ml.com]

I think I just verified it.  See the photo at
http://www.n56ml.com/fuel/05121531m.jpg , which shows the 37 degree
Earl's fittings, and the number 40108 written in Sharpie on the top of
the pump.

Mark Langford, Harvest, AL
ML "at" N56ML.com
www.N56ML.com

KR> Facet fuel pump flare?

[ml at n56ml.com]

Pete Klapp wrote:

> Mark Your fuel system page shows your Facet fuel pumps connected to fuel 
> lines using AN fittings. I spoke with a "tech?" at Facet and he "thought they 
> were a 45 deg SAE flare" as they only made fuel pumps for automotive use. Had 
> you had any leaks or problems using the 37 deg AN fittings? Did you alter the 
> AN fittings to 45 deg?<

I'm pretty sure they are 37 degree fittings.  I think the part number is
shown on the diagram at http://www.n56ml.com/fuel/index.html , 40108.
You probably got this from the chart at 
 http://www.facet-purolator.com/cube-fuel-pumps.php , where the picture
doesn't match the pump...it shows NPT female threads, and the
description only says "3/8 flare", but it's 37 degrees for sure.  He's
probably thinking SAE brake lines.  If I go to the airport today I will
verify it...

Mark Langford, Harvest, AL
ML "at" N56ML.com
www.N56ML.com

KR> engine run videos

[Chris Prata]

hi paul, not everyone uses FB, maybe Youtube is ur friend? Easy uploading, 
universal compatibility...


> To: krnet at list.krnet.org
> Date: Mon, 18 Apr 2016 23:33:23 -0400
> Subject: Re: KR> engine run videos
> From: krnet at list.krnet.org
> CC: pkengr at hotmail.com
> 
> Still nothing?!?!
>  
> > Date: Mon, 18 Apr 2016 22:32:32 -0400
> > To: krnet at list.krnet.org; corvaircraft at list.corvaircraft.org
> > Subject: KR> engine run videos
> > From: krnet at list.krnet.org
> > CC: PPaulVsk at aol.com
> > 
> > 
> >  
> > I figured out a why to get the video up on the list of my engine  run.  
> > https://www.facebook.com/ppaulvsk/videos/pcb.10207942867583845/1020794286086
> > 3677/?type=3
> > https://www.facebook.com/ppaulvsk/videos/pcb.10207942867583845/1020794286114
> > 3684/?type=3
> >  
> > Paul Visk
> > Belleville Il.
> > 618 406 4705
> > 
> > ___
> > 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> engine run videos

[Paul Visk]

What! ?Who doesn't use Facebook? ?: )?
Paul Visk?Belleville Il?618 406 4705?


Sent from my Sprint Samsung Galaxy S? 6.
 Original message From: Chris Prata via KRnet  Date: 4/20/16  10:44 AM  (GMT-06:00) To: KRnet  Cc: Chris Prata  Subject: Re: KR> 
engine run videos 
hi paul, not everyone uses FB, maybe Youtube is ur friend? Easy uploading, 
universal compatibility...


> To: krnet at list.krnet.org
> Date: Mon, 18 Apr 2016 23:33:23 -0400
> Subject: Re: KR> engine run videos
> From: krnet at list.krnet.org
> CC: pkengr at hotmail.com
> 
> Still nothing?!?!
>? 
> > Date: Mon, 18 Apr 2016 22:32:32 -0400
> > To: krnet at list.krnet.org; corvaircraft at list.corvaircraft.org
> > Subject: KR> engine run videos
> > From: krnet at list.krnet.org
> > CC: PPaulVsk at aol.com
> > 
> > 
> >? 
> > I figured out a why to get the video up on the list of my engine? run.? 
> > https://www.facebook.com/ppaulvsk/videos/pcb.10207942867583845/1020794286086
> > 3677/?type=3
> > https://www.facebook.com/ppaulvsk/videos/pcb.10207942867583845/1020794286114
> > 3684/?type=3
> >? 
> > Paul Visk
> > Belleville Il.
> > 618 406 4705
> > 
> > ___
> > 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> Canopy Choices

[Robert7721]

Matt,


Yes, I used the Aircraft Spruce KR2 canopy on my KR2S.  Photos are on my web 
site on the "Finishing" page, but I didn't note a lot of detail. I installed it 
exactly per plans instructions. 


www.robert7721.com


2.  I don't think there would be a huge disadvantage with the KR2 canopy 
regarding drag.  It is definitely physically smaller than the others and is 
better suited to small pilots and passengers. I am small at 5'5" and it works 
for me and passengers less that 5'10".  But when scratch building the aft deck, 
you can always build higher - but you get more drag.


3. Sorry, can't help on that. 


Rob Schmitt
N1852Z




-Original Message-
From: Matt Quimby via KRnet 
To: krnet 
Cc: Matt Quimby 
Sent: Tue, Apr 19, 2016 11:24 pm
Subject: KR> Canopy Choices

Hey all, I?m about ready to purchase a canopy and get the top half of this boat 
shaped. I really like the way those Dragonfly canopies look, but they don?t 
seem to be available anymore. Three questions:
1. Has anyone used the Aircraft Spruce KR2 canopy, and do you have pictures? 
What about other options?
2. The original canopy looks like it would cause excess drag due to the abrupt 
angle change where it meets the forward deck. Is this a valid reason to choose 
a different canopy, or is the performance difference probably too small to 
notice?
3. Does anyone have a canopy they want to get rid of? I know a guy who?s 
looking for one? :)

Matt Quimby
kr2pilot.blogspot.com
___
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> Canopy Choices

[Christopher Pryce]

>From Mark Langford's page. I just recently got my canopy from them.

Dragonfly canopies can be bought from:

Aircraft Windshield Co
10871 Kyle St.
Los Alamitos, CA 90720-2410
(562) 430-8108

Chris Pryce
Burlington, NJ

KR> Canopy Choices

[ml at n56ml.com]

I reread it...

> 2. The original canopy looks like it would cause excess drag due to the 
> abrupt angle change where it meets the forward deck.

The back side is more important than the front side.  The nicely rounded
surface guides the air around fine... the trailing edge being faired in
gently is the important thing.

I flew back from St. Louis Sunday trying to stretch my fuel, and was
burning 2.9 gph at 130 mph TAS (which is independent of winds, although
I did have a 25 mph HEAD wind).  This is 45 mpg, which ain't half bad. 
Going up I did about 147 burning 3.5 gph, or 42 mph.  I flew up at
10,500' and back at 9500'.  I like to keep a long glide path under me...

Mark Langford, Harvest, AL
ML "at" N56ML.com
www.N56ML.com

KR> Canopy Choices

[ml at n56ml.com]

Matt Quimby wrote:

> 1. Has anyone used the Aircraft Spruce KR2 canopy, and do you have pictures? 
> What about other options?
> 2. The original canopy looks like it would cause excess drag due to the 
> abrupt angle change where it meets the forward deck. Is this a valid reason 
> to choose a different canopy, or is the performance difference probably too 
> small to notice?<

If you see a canopy with a discontinuity in the flow lines to the aft
deck, it's because the canopy wasn't installed correctly to start with,
although the bubble doesn't necessarily make it easy. N891JF has the
stock canopy, and it's quite well faired into the aft deck (see
http://www.n56ml.com/n891jf/ for photos).

Jim Hill used a Dragonfly canopy on his stock width KR2 and it fit fine,
if that's a concern.  It was kind of neat...it turned in just a bit on
the sides, so he had great visibility forward and out to the side as
well...his head wasn't confined to the fishbowl that you get with a
bubble canopy. Looking at it now, he must have cut at least 18" off the
back though, which I would have left there for even better visibility. 
See Jim Hill's canopy at http://www.n56ml.com/jhill.html.

 The Todds canopy is a blown canopy, so it's a bit on the bulbous side,
but the price is certainly right.  Steve Glover at nvAero does sell the
Dragonfly canopy.  I used a Dragonfly on my first plane, and that's what
I'll use on my next plane, if it's a two seater.  That's at
http://www.n56ml.com/kcf.html.

Mark Langford, Harvest, AL
ML "at" N56ML.com
www.N56ML.com

KR> Canopy Choices

[Pete Klapp]

Matt
Contact Todd's Canopies @954-579-0874, they make Dragonfly canopies. I used one 
on my KR-2S as I made my fuselage 5" wider than stock. There service is great 
and their canopies are well made.
Pete Klapp, building N729PK,
Canton,OH

> Date: Wed, 20 Apr 2016 00:23:48 -0400
> To: krnet at list.krnet.org
> Subject: KR> Canopy Choices
> From: krnet at list.krnet.org
> CC: crazymonkey16 at ptd.net
> 
> Hey all, I?m about ready to purchase a canopy and get the top half of this 
> boat shaped. I really like the way those Dragonfly canopies look, but they 
> don?t seem to be available anymore. Three questions:
> 1. Has anyone used the Aircraft Spruce KR2 canopy, and do you have pictures? 
> What about other options?
> 2. The original canopy looks like it would cause excess drag due to the 
> abrupt angle change where it meets the forward deck. Is this a valid reason 
> to choose a different canopy, or is the performance difference probably too 
> small to notice?
> 3. Does anyone have a canopy they want to get rid of? I know a guy who?s 
> looking for one? :)
> 
> Matt Quimby
> kr2pilot.blogspot.com
> ___
> 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