the locals.
Chris Johnston
North Richmond
NSW Australia.
- Original Message -
From: "Nick Brennan"
To: "KRnet"
Sent: Monday, February 19, 2007 4:54 AM
Subject: Re: KR> Waiting for the plan
, any one have any
experience in using cf for tail wheel springs?
Chris Johnston
use
it for all manner of scientific applications, but its that long since I used
it I have forgotten how to make it go.
Chris
Johnston
North
about $12 per metre
and alternate the weave at 90 degrees to each other, Any problems or flaws in
using the cloth in this way? any better methods?
Chris Johnston
its siffness, my theory being that two layers
of cf at half the weight of the regular stuff would give a stiffer canopy
frame than the usual glass. Just a thought though.
Chris Johnston
>
> North Richmond
>
> NSW Australia
?
Chris Johnston
North Richmond
What would be the best way to install/fit a Summit tank??
Chris Johnston
North Richmond
NSW Australia.
- Original Message -
From: "william Clapp"
To: "KRnet"
Sent: Monday, January 08, 2007 5:14 AM
Subject: Re: KR> header tanks
> My preference on my
ections. I looked at Summit tanks but was not sure
how to fit them, I think a ply front deck and separate header tank such as a
Summit tank would be lighter than my 15 lbs, any advice?? It was also a very
good exercise in learning how to fibreglass.
don't see,
and ...
Chris Johnston
North Richmond
NSW Australia.
- Original Message -
From: "Mike johnson"
To: "krnet"
Sent: Monday, October 30, 2006 1:19 PM
Subject: Re: KR> boatless fuselage?
> Chris,
>
I am surprised that thngs happen this way, I would
have thought that a more engineering approach would be more appropriate,
but.."
, Im no
aeronautical engineer.No bucket loads of foam dust , you can use the
stock spar lengths, I save a lot on the cost of foam which is expensive for
me, time saving in finishing, and so on and son.
Chris Johnston
North Richmond
Email me at chr...@ozdocs.net.au, I can tell you all about the plans
procedure from RR..
cj.
- Original Message -
From: "Richard Mulford"
To:
Sent: Tuesday, October 10, 2006 10:22 PM
Subject: KR> Wanting Plans KR2S
> Hi krnet,Just wanting to know if there is a chanc
You coming to the Richmond airshow Phil, or bit to far to pedal your 172? I
just remembered, the SAAA Wagga Wagga Show is on soon too.
Chris Johnston
North Richmond
NSW Australia
- Original Message
kness would be strong enough?
Chris Johnston
North Ric
nyone has a set they would
like to sell, please let me know.
Chris Johnston
North Ric
. But,
will try again.
Chris Johnston
North Richmond
NSW Australia
- Original Message -
From: "VIRGIL N SALISBURY"
To:
Sent: Saturday, October 07, 2006 5:38 AM
Subject: Re: KR&g
takes next to no times at all. To cut
a long story short, more standardization of parts would probably help, plus
other things but tired of typing so here endeth the lesson.
span wings, simialr to
Gary's I was told, but the builder also used the later AS wing section.
Personally, I don't think there is anything wrong with the raf section, it
suited my needs quite well.
Chris Johnston
Nort
hone fax number, but never any answer, I guess it
is probably because we talk funny here.
Chris Johnston
North Richmond
NSW Australia
- Original Message -
From: "VIR
But some of us want to get to fly this lifetime and not the next!
Chris Johnston
North Richmond
NSW Australia
- Original Message -
From: "Stephen Hubbert"
To:
Sent: Tuesday, October 10, 2006 3:10 AM
Subject: KR> Re: Wing Skins
>
>
>Hey
he US in a few days and I
went to see if I can get a canopy.
Chris Joh
I would be interested in some of the ideas you picked up on wheel pants,
paint etc etc.
Chris Johnston
North Richmond
Australia chr...@ozdocs.net.au
- Original Message -
From:
To:
Sent: Wednesday, October 04, 2006
ultralights and
homebuilts, I don't know any more than this, any further advice appreciated.
Chris Joh
.
Chris Johnston
North Richmond
NSW Australia
, otherwise the spars would point in different directions.
Chris Johnston
North
Thanks for everyones help on the spar fitting and cad files, much
appreciated.
Chris Johnston
eeded.
Chris Johnston
292 Bells line road
nORTH rICHMON
cutter especially for cutting 4130 steel plate, so thought I had better
check with someone more learned than me in these things, heat and aircraft
grade metals are not a good combination in my opininon.
Chris Johnston
North
you have to be very safe and play on the conservative side of
what works, after I have built two or three aeroplanes, I am sure I can do
things I would never do now, but you have made a very very good point!
Chris Johnston
That was my original plan, water jet cut and ream, but I was told
recently that plasma cutting is ok, I was a bit suspicious about that
comment, hence my asking.
Chris Johnston
North Richmond NSW
?
Chris Johnston
North Richmond NSW
hinge half?
Can you use two bolts on the outer tailplane and elevator hinge without
weakening the spars too much?
Chris Johnston
f vision of the human
eye makes it appear to be permanntly on, which saves on more power. And if
you have ever wondered why safety gear is always yellow, its because the
peak optical response of the human eye is around 555 nano metres, ( I
think!! ), ie the colour yellow.
Can you send me your offnet email address, and I will send you a picture
of my wood turtle deck, I sent it to the krnet but it complains anout the
file size being too big.
Chris Johnston
- Original Message -
From: "Bavo"
To: "KRnet&qu
people LC 3600,
whihc is supposed to be the bee's knees as far as soaking into the wood goes,
has anyone any experience of using this product, its also quite expensive.
Chris Joh
wn in the gap.
Chris Johnston
North Richmond Australia
- Original Message -
From: "Bavo"
To: "KRnet"
Sent: Tuesday, August 01, 2006 12:59 PM
Subject: KR> Springs
> Hi All,
> I'm about
is to make the bush slightly
thinner than the plate and fill around the edges with loctite.
Chris Johnston
job just as well.
The other thing I learn't was just listen to what the kr net sais and use
rod end bearings, ( well, bushed hinges should have worked out reasonably
cheaper, but in practice, its not working out that way ).
Chris Joh
Can you tell us some more about this material, what type of plastic,
density, where do you get it and what cost compared to other plastics.
Chris Johnston
North Richmond
NSW Australia.
- Original Message -
From: "Serge VIDAL"
To: "KRnet
g all home
aeroplanes builders problems, but seems as though the stuff has been around
for donkey's years. There does not seem to be any great cost advantage over
Aluminium, thats here locally anyway, ( Australia ).
.
Chris Johnston
North Richmond NSW
Australia.
Shameless plug, fly United, the hosties and coffee are a lot better than
what you get in a KR. and Qantas.
- Original Message -
From: "Robin Wills"
To:
Sent: Saturday, July 15, 2006 3:02 PM
Subject: KR> RE: AUSSIE Gathering / Greatest distance
>I figure if I have a Jab 2200 that us
t, it would be ok.
Chris Johnston
North Richmon
truck bodies etc and do
not clog apparently
Chris Johnston
North Richmond
I am surprised at that weight, I would have thought the RR original
would have been lighter, makes me wonder if you really know your way around
aircraft wood structures, just how light would you be able to make the
decking?
Chris Johnston
two pieces I made, that uncured resin had polluted the foam, so I make
sure the work bench is surgically clean, and am getting much better results.
Chris Johnston
North Richmond NSW
Australia.
- Original
has come out about 4 lbs, the tank is just under 60 litre capacity so I
estimate, the fuel tank/front deck to be about 8-10 lbs.
Chris Johnston
North Richmond NSW
sheet. Not the optimum choice strength wise, but
it is a certified engineering material, and it seems to do the job ok.
Chris Johnston
North Richmond
Australia..
- Original Message
into fuel tanks
etc, have not tried any wing sections. The SAAA here are supposedly running
courses on welding, riveting, glassing, including vacuum bagging etc, but
wouldn't hold out too much hope on this.
Chris Johnston
North Ri
themselves now.
Chris Johnston
North Richmond
Australia.
- Original Message -
From: "Serge VIDAL"
To:
Sent: Friday, June 30, 2006 10:58 PM
Subject: KR> A call to the Au
go tacky, stick on some rubber gloves
and run your finger around the seam to give the glue a nice rounded fillet.
The trick to a good glue job seems to be to have a perfectly flat and flush
surface to glue your ply too.
Chris Johnston
all up the turtle
deck from wood will weigh about 7 lbs, my question is, how does this compare
weight wise to a composite structure?
Chris Johnston
???
Chris Johnston
North Richmond NSW
Australia
hich is not hot by world standards,
but still pretty bad, which reminds me, I must fill out that green card form
sometime
Chris Johnston
North Richmond NSW
Australia
something
must have happened on the way to or from the US, but I wont bore everyone with
sending the same junk again.Thanks for your help.
Chris Johnston
the OPEC guy
tells us there is no increase in demand and no problem with supply meeting
demand, so who's talking the market up Western government will have to
learn to stop milking the bowser for easy money.
Chris Joh
.
Chris Johnston
North Richmond
Australia
- Original Message -
From: "Larry&Sallie Flesner"
To: "KRnet"
Sent: Saturday, May 0
spent
much time perousing through yet. I am surprised how quick it has taken to
get to the "I need WAF's " stage
Chris Johnston
North Richmond
Australia.
My plans BOM and spruce kit show for the centre spar vertical pieces 1 x
1/2 x 2 5/32 x 30 inches, and 30 inches is not enough as far as I can
tell
Chris Johnston
North Richmond
tion of American English is not that good. How did Ken Rand fit
the floor?
Chris Johnston
North Richmond
Australia
- Original Message -
From: "VIRGIL N SALISBURY&qu
Would anyone have contact details, email etc, for Chris Gardner, I like the
look of his aeroplane, I think he is in Cnada somewhere.
Chris Johnston
done!
Chris johnston
North Ric
ou have a passionate
interest in cad AND building aeroplanes.
Chris Johnston
off you are working on elevation.
Chris Johnston
North Richmond
the archives.
Chris Johnston
North Richmond
think the rod end bearing is just far superior
to anything else, but keep getting told these bad reports on them.
Chri
itted
Chris Johnston
Richmond NSW
Australia
- Original Message -
From: "Kristofer Leirfallom"
To: "KRnet"
Sent: Tuesday, March 21, 2006 4:44 AM
Subject: KR> KR-2 is my first h
e delivery.
Chris Johnston
Sydney Australia
will do
the same.
Chris Johnston
Sydney Australia.
- Original Message -
From: "VIRGIL N SALISBURY"
To:
Sent: Tuesday, March 28, 2006 12:31 PM
Subject: Re: KR> ruder post
>
.
Chris Johnston
Richmond Australia
ctive" view
which seems to show no difference in width, the KR2 plans, again from the
plan view show no difference in width Confusing!
Chris Johnston
RICHMOND AUSTRALIA
- Original Message -
From:
ay have to be
slightly oversize to allow for fitting...BUT, I haven't tried it
so it may not work.
Chris Johnston
Richmond Australia.
- Original Message -
From: "Jim"
To: "
heard from them since.
Chris Johnston
Richmond Australia
longeron. I would feel happier with the grain at 45 degrees as I would think
there would be less tendancy for the gusset to split along the grain. I am
no aeronautical engineer so I cannot really say what is right and what is
wrong.
Chris Johnston
, ( Australia ) manufacturing a
thing called a Cobra Arrow, and I know that a canopy for it has been fitted
to a KR2S, but thay want 2-3 thousand dollars per copy.
Don't know any other canopy sources!
Chris
Joh
Yes I do, but you forget, this is Australia, they only invented electricity
here last week!
Chris Johnston.
Richmond Australia.
- Original Message -
From: "Frank Ross"
To: "KRnet"
Sent: Monday, Febru
I need some material for the rudder and elevator hinges, Wicks and AS seem
to have the 1 inch by 1 inch but do not seem to have the larger channel
section, ( I may not be looking in the right place to find it though), is there
any alternative grade metal I can use, its that or either Dr Dean
What I have found out about using T-88,
1)Its not so much whether one epoxy "sticks"better than the other,
so long as the glue join is stronger than the wood, which means the wood
will fail before the epoxy join.
2)T-88 has been used, so they tell me to build quite sustantial
number
Not quite up to this stage but getting close, but I can forsee a problem in
that if the side frames are canted outward, then the floor has only the top
edge of the lower longeron to mount to, so what do you do, simply glue to the
top edge of the lower longeron ???
The ply spar reinforcent gussets on the inside of the fuselage, it looks from
the plans as if the cross member goes in, the ply gusset is fitted and then any
spruce gussets for the cross member are added last, but some photos on the
krnet seem to show the cross member, then the spruce gusset for
A question for Australians, can anyone tell me where I can get some foam from,
I have tried about 6 companies locally in Sydney but they all charge something
like $1000 for a block of foam about 4 ft by 2 ft by 1 ft, and if any one can
advise on a good resin for glassing and where I can get it t
Would anyone have a cad file of the front end of the aft turtledeck profile to
suit a dragonfly or rand robinson kr2s canopy, any form of drawing file in
autocad/turbocad/microstation etc, or even just some measurements would do, I
have the height and width from the plans, just a radius that w
West System epoxies that are available from Wicks or Aircraft
> Spruce. They are not "local" but if I order from Wicks I usually get it
> in two days.
> Hope this helps,
> Stephen
>
> -----Original Message-
> From: krnet-boun...@mylist.net [mailto:krnet-boun...@myl
So obviously this does not reduce the cross sectional area of the longeron
too much??? I have tried weighing substantial amounts of cured waste T-88 to
see just how much extra it adds and found it took quite a lot to make even a
small change on my digital scale, there would also be a fair bit ab
template for the firewall to come up with the shape of both
>> the
>> aft bulkhead for the turtle deck and the forward arch for the
>> windshield. After cutting it out, I just widened the legs to meet the
>> longerons.
>>
>> Dan
>>
>> From: "Chris J
To fit the spar webs I figure I need about 8 ft by 35 inches surface area
of ply to cover all the spars, I would assume the grain in a 8 ft length runs
lengthwise in the sheet, the plans MAKE A POINT of noting the grain to run
vertically, so my question is what do most people do, cut 4 ft
Cultural difference, actually mean 2-3 millimetres, like the girls in
California saying we will pick you up out the front of your hotel at 7 and
go to the "beach", beach means to Australians sand and surf, swimmers and
towels, the girls arrive all dolled up in tight jeans, high heels, lipsti
No need to apologize, I should use something like mm but thought people
in the imperial world would get confused with m&m's and have no idea what I
was talking about. I don't like riveted sheet metal tanks, you only have to
look at most Cessna's which crash and burn, the burning bit comes fr
finally, can anyone
tell me what process is going on chemically speaking after spruce is exposed to
sunlight/air and discolouring.
Chris Johnston.
Serge, can you email me your pdf copy of ANC-18, for me, its simply the
quickest and easiest way to get the information, chr...@ozdocs.net.au.
- Original Message -
From: "Serge VIDAL"
To: "KRnet"
Sent: Tuesday, November 08, 2005 8:39 PM
Subject: Réf. : RE: KR> ANC-18
I do have ANC-1
Can anyone tell me where on the FAA web site I can get ANC-18, or alternative
sites, and can anyone reccommend any good books on wooden aircraft
construction.
Chris Johnston.
Can anyone tell me the requirement as far as GL rating is concerned for
birch ply for kr fuselage sides, I have the option of GL1 or GL3, GL1 is
apparently certified and inspected by microscope, and very very expensive,
while GL3, has "minor" defects, but is affordable, my question is,
I need some advice on T-88 glue joints. I have a disc sander made from a
wood lathe, which I use to get a perfect fit between parts, then coat both
mating surfaces with T-88, and apply light pressure, I kept a sample of the
epoxy, and a sample glue joint, which broke along the grain of the w
Can anyone tell me just what role the glass skin on the fuselage does,
the way I see it, the two side frames are nothing other than fairly simple
trusses, which would be carrying all the bending loads from wings,
tailplanes, cockpit loads etc. The turtle deck does nothing significant from
a str
test message.
If you go to the CASA web site, you will find a list of all KR2'S on the
Australian register, most interesting is the reference to a retractable
tailwheel on a number of KR2's listed.
Chris Johnston.
-Original Message-
From: Andrew Ross
To: chris johnston
List-P
Well, I have been looking and evaluating throughly all possible
contenders and a kr looks the best bet, so how much do you want, how old are
the plans, and how much to post to Australia.
Chris Johnston.
-Original Message-
From: KYLE YATES
To: kr...@mylist.net
List-Post: krnet
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