KR> KR-2 in "Aftermath", more about spins

2014-09-25 Thread Gavin Magill
Hi Jeff

I for one am thankful for your wisdom. I am one of the great unwashed who
has never completed a fully developed spin (it not being required as part
of the standard PPL syllabus) so I am grateful that those who have the
knowledge are happy to share with the rest of us.

Many thanks

Gavin Magill
Auckland NZ.



On 25 September 2014 11:41, Jeff Scott via KRnet 
wrote:

Mark L and I were having a short conversation off line about the "Aftermath
> KR-2", controls and spins.  I started a write up about incipient spins vs
> fully developed spins.  Then I realized that many pilots may not know the
> difference.  When one talks about having done spin testing in an aircraft,
> knowing whether the pilot has done incipient spin entry and recovery vs
> fully developed spins and recover is important.  So I thought I would share
> my thoughts with the group.  You will have to decide for yourselves whether
> it is wisdom or just windy...
>


KR> LiFePO4 Batteries

2014-07-16 Thread Gavin Magill
Hi Tony

Do you have internet links to the incidents to which you refer? I would
like to read about what caused the incidents as I am currently considering
buying one of these batteries and have a few colleagues who have already
purchased them.

Cheers
Gavin Magill
Auckland NZ


On 16 July 2014 11:02, Tony King via KRnet  wrote:

> Be very careful with any kind of lithium batteries, including LiFePO4, in
> aircraft.  I had a Ballistic EVO2 LiFePO4 battery in my aircraft for about
> 80 hours with no issues, but I have now removed it after the second of two
> significant incidents (one fatal) in Australia caused by LiFePO4 batteries.
>  I just didn't want to be worrying about it while in the air - especially
> since the battery is directly under the seat in my aircraft.
>
> It's true LiFePO4 is a lot safer than LiPo batteries, but their technical
> requirements, discharge characteristics and failure modes are quite
> different to lead acid batteries and not well understood by most aircraft
> owners.  They do not like being heavily discharged and over-voltage during
> charging is a definite no no.  Typical solid state regulators use pulse
> width modulation to achieve a well regulated average voltage, but the
> voltage of the pulses is whatever the alternator puts out - which can be as
> high as 22 volts, well above the 14.6V limit of LiFePO4 batteries.
>
> These batteries are being marketed as direct replacements for lead acid and
> it's true that for their weight they make great starter batteries.  But the
> marketing doesn't address the differences with lead acid in any way and the
> potential for a fire or the discharge of toxic gases (e.g. hydrogen
> flouride) exceeds my comfort level in an aircraft, although I'd use one in
> a car or motorbike or the like without hesitation.
>
> Another aspect that doesn't seem to be well understood is that while a lead
> acid battery shows a gradual drop in voltage as it's discharged, lithium
> batteries will hold close to the nominal voltage until quite deep in the
> discharge cycle and then the voltage will drop very steeply to below useful
> levels.  This has implications in the event of alternator failure if you're
> counting on the battery to run the panel or the ignition.  By the time a
> drop in voltage is noticed, there's very little time left.
>
> You might notice too that the marketing for lithium batteries tends to
> focus on the cold cranking amps of lithium compared with lead acid and on
> that basis lithium batteries look great.  But the actual amount of energy
> stored in the battery is a lot lower (typically around a third) than a lead
> acid battery of equivalent cca performance.  This means the lithium battery
> won't be able to run a given load (say a glass panel or a radio stack or an
> electronic ignition) for as long as a lead acid battery with equivalent
> starting performance.
>
> On the surface these batteries are a great development, but the marketing
> that says they're a drop in replacement for lead acid batteries is
> misleading.  There are several factors that need to be well understood if
> you're planning to put one in an aircraft.
>
> Cheers,
>
> Tony
>


KR> Em I the first to register for Marks EAA Webinar

2014-07-03 Thread Gavin Magill
No you're not Paul. I'm booked in as well. Looking forward to hearing what
you have to say Mark. :-)

Cheers
Gavin Magill
Auckland NZ


On 3 July 2014 06:07, Paul-Visk via KRnet  wrote:

> _Building and  Flying the Amateur-Built KR-2S_
> (https://www2.gotomeeting.com/register/350936082)
>
>


KR> Roy Marsh's plane

2014-03-14 Thread Gavin Magill
The aircraft is currently based in New Zealand Jeff (which is on the
upside-down side of the planet) about two thousand kilometers to the east
of Australia. :-)

Might be a tad costly to get back to the States but if you are interested,
contact me off net at my email address below and I will forward you the
contact details I have for Rudi.

Cheers
Gavin
gavin.magill at gmail.com




On 14 March 2014 13:42, jeffyork40 at yahoo.com  wrote:

> Wheres it at ? How much ?  Details. Im finishng a project and looking for
> another. Like the idea of bringing a famous KR back to life, an S and your
> airfoil idea.
>
> Jeff York
> KR 2
> 2010 Peoples Choice, Best Interior
> 2011 Airfest Best Experimental, Instrument, Interior
>
> ___
> 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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>


KR> Paul Lipps

2014-02-26 Thread Gavin Magill
Hi Larry

This aircraft really is a bit of a mystery.  It turned up in New Zealand at
a NZ Sport Aircraft Association Fly-In at Tauranga airfield in 2008 (see
link below) but has since seemingly disappeared off the face of the planet.

http://nzcivair.blogspot.co.nz/2013/05/question-time-160-kr-2-postscript.html

A local blogger (Keith Morris) who runs the NZCivair blog asked about the
whereabouts of the aircraft back in May last year but was not successful at
finding its present owner or location. The last posting Keith made about
the aircraft can be found at the link below.

http://nzcivair.blogspot.co.nz/2013/05/question-time-160-partly-resolved.html
. 

Given the relatively small size of our country and the relatively small
number of members of the Sport Aircraft community and even smaller number
of KR builders and owners I am somewhat amazed that this is even possible.

I will follow up with Keith again this evening to ask if he has had any
further feedback,

Cheers
Gavin Magill
Auckland NZ


On 26 February 2014 14:16, Larry Flesner wrote:

> At 03:53 PM 2/25/2014, you wrote:
>
>> Paul mentioned that Roy Marsh, over 90 years old, was still showing up
>> for the local chapter EAA meetings and still prowling around the airport.
>>  Roy was either a a fighter pilot or bomber pilot in WWII Paul mentioned,
>> and of course built what some say was the progenitor of the KR-2S.
>>
>>  +
>
> I think Roy's KR was exported to New Zealand back in 2007 according to FAA
> records.  Any of you fellows "down under" know it's whereabouts?  133RM was
>  it's number here in the USA.
>
> Larry Flesner
>
>
>
>
> ___
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>


KR> figured it out

2013-04-08 Thread Gavin Magill
Hi Larry.

Perhaps the simple way I have found to reduce image file sizes is to use
the inbuilt picture editor in all Windows products called Paint.

It ain't elegant but it is quick and does the job and saves time installing
any other type of software.

You open Paint under the Accessories menu or enter pbrush in the Start
Search box under the Windows menu and hit enter. (Or easier still right
click the image file you want to open and select Open With>Paint from the
drop down menu.)

Once the Paint application is open you use File>Open (Ctrl-O) to open the
photo image (if it isn't already open), then use the Image>Resize (Ctrl-W)
option in the menu to resize the image to a smaller size then click
File>Save As (so you don't overwrite the original image). If the image file
isn't small enough just repeat till you get the image small enough.

Cheers
Gavin



You should then be able to include the photos

On 8 April 2013 14:44, Larry Flesner  wrote:

>
>
> Thanks Mark L. for the tip but I think I figured it out.  I was trying to
> past directly to the e-mail in eudora from photo software.  It kept going
> on as an attachment.  I learned through trial and error that if I copy and
> paste the photo to a Microsoft office word doc first and then copy and
> paste that image to eudora, it will go into the body of the e-mail.
>
> Thanks...
>
> Larry Flesner
>
>
> Emacs!
>
>
> ___
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>
>


KR> Spring trim system

2011-12-10 Thread Gavin Magill
Hi Craig

I have a part share in a Sonex to which we have fitted the spring trim
system as part of converting the aircraft to the Sport Trainer
configuration.

The trim system, as designed and fitted to the Sonex, is very effective
with a single pilot on board but can tend to run out of nose up trim when
operating the aircraft at close to maximum all up weight. This typically
isn't a major issue though as it can easily be overcome with just a little
back pressure on the stick until some fuel burns off at which time the trim
becomes effective enough to keep the nose attitude correct. I would like to
emphasize that this only occurs when flying the aircraft is at maximum all
up weight.

Perhaps the only criticism I have with the design is the actuating wheel.
You need to turn the wheel through about seven or eight full revolutions to
go from full rear to full forward trim when checking it as part of your
normal pre-start checks. It isn't an issue in flight however as the amount
of movement required when flying is usually only one or two revolutions to
trim the aircraft out however it is a bit of a pain during pre-flight
checks. Note that we have considered fitting the trim wheel with a small
crank handle which would probably make for easier operation but we have not
done this on our Sonex setup as yet.

I have published some photo's of the fitting of the trim system and the
Aerocarb throttle quadrant to our Sonex on my website at the following link
(http://www.kiwikr.co.nz/090_03_newthrottle.html) and also some followup
work which was required after the install inspection was carried out. (
http://www.kiwikr.co.nz/090_04_inspectionwork.html).

I can recommend the Sonex spring trim system as fitted to the Sonex and I
will likely be fitting the same system to my KR as it should simplify the
construction of the Horizontal Stab with there being no need to cut out and
fit the standard trim tab.

Regards
Gavin Magill
Auckland NZ


On 10 December 2011 06:44, Craig Williams <kr2seaf...@yahoo.com> wrote:

Craig wrote..


> http://www.sonexaircraft.com/orders/trimfaq.html
>
> Has anyone used the Sonex trim system in their KR?  I have convinced
> myself that the this is a good system and want to try it.
>
> Craig
> www.kr2seafury.com
> ___
>


KR> Engine Failure on Take OFF.

2011-09-26 Thread Gavin Magill
Glad to hear you are ok Phil.

Not good about your plane. Back to the workshop I guess.

Hopefully you didn't have too much explaining or paperwork to do for CASA.

Regards
Gavin


On 26 September 2011 23:26, Phil Matheson wrote:

> Well, it can happen to you.
>
> Last night 1730 at 500 ft Engine stopped dead. Lack of landing spots. Had
> to
> make 150' turn to safe ground.
>
> Check, tanks pumps NO start, but engine wind milling. A bit hot and ran out
> of field, had to lift over fence, then channel, stall, O S*#T - ground.
> Bugger.
>
> Walked away. KR home in my workshop.
>
> Damage,
> Prop, nose wheel collapse, L main collapse. Under inner wing whole from
> wheel. But main leg undamaged, the main bolts Sheared OFF, as did the nose
> wheel to fire wall bolts. NO cowl damage only paint. Engine mount bent.
>
> FOUND the cause this morning, the coil lead came out of the distributor
> Cap.
> No wonder it would not start.
> Did I seem Mark Jones make a cover or his dist. cap, Should listen to Mark.
>
> Impact point Google Earth  145 32.527 E 35 39.681S only 400m from my home.
>
> Phil Matheson
>
> VH PKR.  KR2.
>
>
> ___
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KR> Does a VW block need paint?

2011-08-31 Thread Gavin Magill
Hi Darren

If you decide to go ahead with removing the paint from your block can I
suggest you possibly look at sodablasting as an option.
This method was recently mentioned at our local SAA Chapter meeting (NZ
Sport Aircraft Association) and one of the members wrote an article for the
Chapter newsletter.
Part of the newsletter article goes as follows.

"Baking Soda (Sodium Bicarbonate) is commonly used as a leavening agent in
cooking and those who have dealt with battery corrosion will know it as an
excellent alkali to kill acid and clean up the corrosion. I could not
determine how long Sodablasting has been around but it seems to have been
brought to prominence when used as a cleaning method on the Statue of
Liberty in the late 1980's where a non-toxic cleaner was required."

"Google-ing ?sodablasting? brought up many articles and I suggest using that
forum for those of you who want more info. According to Wikipedia:"

?Sodablasting is a non-destructive method for many applications in cleaning,
paint stripping automotive restoration, industrial equipment
maintenance,rust removal, grafitti removal, molecular steel passivation
against rust, oil removal by saponification and translocation, masonry
cleaning and restoration, soot remediation, boat hull cleaning and for food
processing facilities and equipment."

The newsletter article can be found on page 13 and 14 of the newsletter
which is published here.
http://www.saaauckland.org.nz/sauckland/Newsletters_files/SAANZ%20Auckland%20Chapter%20Newsletter%20August%202011.pdf

I personally have no experience using the method but thought it might be
worth a look.

This may be of interest to others on the list.

Regards
Gavin


On 31 August 2011 13:34, Pilot Pond  wrote:

> My old 1835vw has peeling paint on it.
> Is it really necessary to have the block painted?
> Is there any safe way to strip it off or is a wire brush my only option
> besides a walnut shell blaster?
>
> Darren
> C-GGGW
> KR2 Cambridge Ont.
>
>
> ___
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KR> LaAviator.com Daily News

2011-06-08 Thread Gavin Magill
Hi Todd

I struggled with it a bit myself Todd and in the end had to google the
links.

But here you go anyway. The last one, if it is real, is quite frankly
amazing.

http://www.asylum.co.uk/2011/05/23/video-low-passes-a-guide-to-the-best-most-terrifying-low-fl/

http://www.asylum.co.uk/2011/06/06/video-watch-the-low-pass-flyby-to-end-low-pass-
flybys/

Enjoy.

Gavin


On 9 June 2011 05:30,  wrote:

> where is the link to watch this flyby?
>
> I can't find it in the referenced email
>
> Todd Thelin
> Spanaway, WA
>
>
> In a message dated 6/7/2011 3:45:38 P.M. Pacific Daylight Time,
> ray_pi...@yahoo.com writes:
>
> Check  out the fly by on this email.  I think it's real, one other guy said
> it's  fake.  you be the judge
> ___
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KR> Tail Plane counter weights

2011-04-25 Thread Gavin Magill
Hey Phil

I am working on my HS at the moment as well.
This is the link to my construction page (which will be updated in the
coming week) which shows how I set up the rib and spars.

http://www.kiwikr.co.nz/221horistab2.html

And if you look at the seventh photo down in the page link below you will
see an example of how a weight can be attached to the HS as per an RV-6A.

http://www.kiwikr.co.nz/085_02_sportavex1.html
Also Darren Crompton's elevator page is definately worth a look.

http://www.kr-2s.com/elevator.html

Hopefully these might be of some use.

Cheers
Gavin


On 26 April 2011 09:50, phillip matheson wrote:

> Hi guys.
> I am about to finally sand the foam on my KR2SS H/S and elevator.
> But considering a slight change and place weights on the elevator tips this
> time and not internal as I did last time as per Mark Langford design.
>
> Any photo's out there of the rib spar design on web pages etc,  I can find
> would be a great help.
>
> Very quiet on the net, or am I not getting all emails again.
>
> Only received 1 email, Larry Flesner re EAH over night here down under.
> strange.
> Phil Matheson
> SAAA Ch 37
> http://www.philskr2.50megs.com/
> ___
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>
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KR> Camera For Filming While Flying

2011-03-01 Thread Gavin Magill
Hi All

I recall a few months back there was a discussion on the best kind of camera
to use to take films while flying your KR.

I found the link below on another blog I monitor and thought it might be of
interest to those who are into filming their flights.

It is for a HD camera the size of a Key Ring Fob which could be mounted in
the cockpit or on a helmet and weighs virtually nothing.

Take a look at the YouTube review in the link below. I thought it was pretty
impressive and fairly cheap at around 26 UK pounds.

http://www.techmoan.com/blog/2011/2/18/finally-a-real-hd-mini-keyring-spy-camera-11-808.html

Enjoy.

Gavin Magill
Auckland NZ
(www.kiwikr.co.nz)


KR> Kr Robin Macdonald

2011-02-27 Thread Gavin Magill
Hi Peter

 I also sent Robin an email on Friday to check how he was getting on but
have not heard back from him yet.

For those on the forum that aren't aware, Robin lives in the suburb of
Sumner in Christchurch, New Zealand which is one of the eastern
suburbs located very close to the epicentre of the 6.3 magnitude earthquake
which hit the city on Tuesday last week.

For those of us living down this part of the world the last week has been an
agonising time with the final death toll from the quake likely to exceed
200. Given New Zealand is a relatively small country most folks would know
of someone who lives in Christchurch or know of someone who has been
directly impacted by the earthquake.

As for why Robin hasn't answered his emails, it is more than likely that
power has yet to be restored to his home at this time. Looking at the Orion
Energy website it looks like they are working to restore power to Sumner and
a couple of other suburbs at the moment so hopefully Robin will be able to
get online soon to answer his emails. Please be aware however that I
suspect Robin's priorities may be more pressing than answering emails given
the destruction to property that has occured in the eastern suburbs of
Christchurch.

I am sure Robin will answer our emails just as soon as he can. In the
meantime I think I would speak for all when I say our thoughts and best
wishes go out to him and his family at this time.

Regards
Gavin Magill
Auckland NZ





On 26 February 2011 22:32, Peter Drake <p...@kingsland.uk.com> wrote:

> Has any one heard anything from KR builder Robin Macdonald in New Zealand.
> He lives very near the epicentre of the earthquake. I emailed him soon
> after it happened but haven't heard anything.
>
> My KR posts are not getting acknowledged can someone let me know if this is
> getting through.
>
> Thanks
>
> Peter Drake
> Hereford UK
>
> --
> I am using the free version of SPAMfighter.
> We are a community of 7 million users fighting spam.
> SPAMfighter has removed 1555 of my spam emails to date.
> Get the free SPAMfighter here: http://www.spamfighter.com/len
>
> The Professional version does not have this message
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KR> Flap Effectiveness - 2nd Pass

2010-08-22 Thread Gavin Magill
Hi Rick
I would be very interested in seing pictures of your flap arrangement if
possible.

Can you please email me some photo's.

Thanks you.

Gavin Magill
Auckland
New Zealand
(www.kiwikr.co.nz)


On 22 August 2010 12:58, R. Human <rahu...@peoplepc.com> wrote:

> OK - let me see if I can help. I have a standard KR-2 with flaps. First off
> the flaps as built per plans will not pitch the nose down! They do not have
> the area to being even close to doing that - about the only thing they can
> do for you is marginally help stabilize your air speed on final. I haven't
> found any help in deploying them on take-off, the only benefit I have found
> is that two notches will help you get the tail up when operating at gross.
> Now all that being said I was able to make a rather simple modification
> that
> probably made my installation twice as effective and that was to add a
> center section flap that fills the gap between the flaps across the bottom
> of the fuselage. I can supply pics if you wish but it's simplify a piece of
> reinforced 1/8" ply that is hinged off of the flaps inboard hinge points
> with a third center point added. The ply has tabs on the ends that the
> flaps
> engage and the center section flap is deployed along with the flaps. I get
> about a 6 kt reduction in stall speed with the flaps fully deployed. Larry
> is right on his post the only good numbers that are meaningful are going to
> be ones you generate in your Phase I testing - Best advice I can give is to
> do you initial testing on a 4,000 foot field - I prefer turf myself it's
> more forgiving. Then once you have a feel for the airplane shorter fields
> become a possibility.
>
> My apologies for not trimming the original note - but it's seems pertinent
> to leave it in its entirety.
>
>
> Rick Human
> N202RH
> Houston, Tx
>
>
>


KR> Update from the archives - Polyester fuel tanks

2010-07-05 Thread Gavin Magill
Hi Mike

Having just become part of a syndicate of pilot/builders who have purchased
a flying Sonex and also being a KR builder, I too have been having a very
close look at the way Sonex do a number of things and trying to work out
what could easily be transferred/adapted into my build.

The fuel header tank would certainly be one of the parts relatively easily
converted over to a KR. It is secured in the Sonex with two Aluminum
straps which fit into purpose made channels in the external moulding of the
tank so this should be fairly simple to secure in the KR. I guess so long as
you can get hold of one of the tanks then it would be possible to adapt it
for purpose although one thing you would need to make sure is that the width
of your boat will accomodate the tank.

Perhaps if you can befriend a local Sonex builder near where you live you
might be able to convince them to order a fuel tank for you rather than
forking out the $600 for a set of plans although I don't know how Sonex
would feel about that. It would certainly save a heap of time if you don't
want to fabricate a fuel tank yourself.

Gavin Magill
Auckland NZ



Mike Taglieri wrote:

> For the main tank, I've been wondering if the molded polyethylene tank used
> in the Sonex could be used in a KR, since it seems roughly the same size.
> Polyethylene is extremely durable, and is used in some dirt-bike gas tanks.
> Unfortunately, the Sonex website says they won't sell any parts to someone
> who isn't a registered buyer of their ~$600 plans.


KR> FW: thinning t-88

2010-05-05 Thread Gavin Magill
I can recommend Everdure Epoxy Sealant.
(http://www.kiwikr.co.nz/images/210/210fuseskinimage073_lg.jpg)

This is a 2 pot system that you should be able to purchase at your local
paint shop that I used to seal the skin of my boat and it worked extremely
well.
(http://www.kiwikr.co.nz/210fuseskin.html)

My mentor (who builds WWII Mosquito Fighter Bomber replicas for a living
http://www.mosquitorestoration.com/index.shtml) and recommended this product
to me as it penetrates the surface layer of the ply and framing timber and
hardens the surface protecting it against physical damage and giving it
resistance to the formation for mould and mildew.

Regards
Gavin Magill
Auckland NZ
(www.kiwikr.co.nz)

On 6 May 2010 10:42, Pete Klapp <pke...@hotmail.com> wrote:

>
> I remember Dana Overall recently asked the KRnet what could be used to thin
> t-88 that he was planning to use to seal the wood on a boat that he was
> going to build.
>
> What was the answer? I think I remember someone saying that acetone was
> what could be used? Am I correct or is there something else that can be
> used? I tried a search of the KRnet archive, but it came back with no
> matches.
>
> I need to thin epoxy to coat the interior of my fuselage.
>
> Thanks in advance for any info
>
> Pete Klapp, building KR-2S N729PK,
>
> Canton, Ohio
>
>
>
>


KR> west system epoxy

2010-04-27 Thread Gavin Magill
David Swanson asked

How can I tell if my west system epoxy is any good  anymore?  It has the
pumps on it since it was first opened.

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
David

I would suggest the simplest way is to mix up a test batch, glue a couple of
test blocks together then test them to failure after the glue has gone off.

If the pumps are old and full of residue I would order a couple of new ones
from your West system supplier otherwise make sure you remove any residue
from the pumps before using them.

I also always make sure the pump is fully primed by giving it a pump
to clear out whatever has been sitting in the tubes before using it as well
if it has been sittign for a while.

I haven't been able to find any reference in the West Systems doco on the
life of an open container of resin or hardener but If you have any doubts
about the state of the product then bin it and buy some more. Glue is
relatively cheap when compared to your life.

Gavin Magill
Auckland
New Zealand


KR> Build Log Update

2010-01-18 Thread Gavin Magill
Hello Netters.

I have updated my buildlog this evening after having not updated it for a
couple of months.
Build progress has been somewhat slow over November/December but I am
looking forward to a more productive 2010.
Any comments and/or broken links please let me know offnet.

Regards

Gavin Magill
Auckland NZ
Email: gavin.mag...@gmail.com
Website: http://www.kiwikr.co.nz/


KR> Folding Wing Design

2010-01-11 Thread Gavin Magill
Pat

Phil Matheson has the page link listed below on his website of a design he
saw at an airshow in Ausy.
You may have already seen this or he may have already sent you this link.
Not upwards folding but still a folding wing design.

http://philskr2.50megs.com/photo5.html

Regards

Gavin Magill
Auckland, NZ
www.kiwikr.co.nz

Pat Russo Wrote >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

>   Does anyone out there have sketches or ideas for folding wing hardware?
> It is what I want for my next project.a simple fold upwards as on WW2
> carrier aircraft.
>


KR> Re: New Kiwi web site

2009-08-11 Thread Gavin Magill
Hi Guys

Thanks for spotting the error.
Still shaking out the bugs.  :)

Regards
Gavin

>
RE: KR> New Kiwi web site
 I know you Kiwi's are on a different time zone but Gavin's last fuselage
statement was August 31, 2009! I know it took him a long time to build the
fuse his way but working in the future sure must help!!-lol-

Gary (still August 11, 2009)
>