On Mon, Jun 1, 2009 at 12:11 PM, LG McCaw wrote:
The only question I've never really had a satisfactory answer
for is - IF I receive and E-AB certificate with stated limits falling
within the LSA category, (making it sport eligible) and later re-prop or
restate the max RPM or whatever, is it poss
On Mon, Jun 1, 2009 at 2:09 AM, Mark Langford wrote:
> But what I was fishing for is how those same questions are answered with
> respect to LSA,
> since that seems to be important to him.
>
There are many different flavors of LSA compared to Experimental-Amateur
Built.
Experimental is 51% or g
Outside, top, widest point: 23"
Firewall, top: 18"
On Wed, May 27, 2009 at 10:51 PM, dustin Reves wrote:
>
> What is the standard width of the KR-1?
>
--
Regards,
RonB
The KR-1 plans are available from Rand Robinson.
They are $65.
Delivery runs from 3-8 weeks, depending on a variety of factors.
The plans are as complete and accurate as they have ever been. They are
more complete and accurate than the original versions, as they come with
many revisions that ha
Lehman's Hardware in Kidron, Ohio has all kinds of non-power tools and
appliances.
http://www.lehmans.com/shopping/product/detailmain.jsp?itemID=6072&itemType=PRODUCT&RS=1&keyword=brace
or
http://tinyurl.com/2gejfx
I still have the one from my dad in my toolbox. It's probably older than I am.
On
On 3/15/07, Darren Crompton wrote:
> I am ready to order my timber and being on a very tight budget, I am
> seriously considering douglas fir as an alternative to spruce.
On http://krnet.org/ there is a link to the old paper KR newsletters,
downloadable in pdf. Many years ago a gentleman document
I'm not sure how many of you engineer types are already aware of this, but...
We use Matlab (a computer mathematical analysis program) at work for
some of the products we sell, and I am a little bit familiar with it
due to having to provide support for these products. Because I am the
technical co
On 1/3/07, bdazzca...@aol.com wrote:
>
> I was just curious what would happen if you were to fiberglass a foam
> fuselage lengthwise instead of 45?
If you use regular bi-directional weave cloth, run at 45 degrees to
whatever, both length and width stresses have to cross every fiber.
When the clo
On 9/20/06, Allen Wiesner wrote:
> Well, how about L/R wing panels joined at the centerline and with the
> dihedral built into the joint?
The problem with that is, as the center section is reduced, the outer
sections have to be made larger to provide the same wing area.
For example, on the KR2S:
> 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.
www.mcmaster.com has a huge variety of supplies and so is good for comparison.
You will often find items less expensive elsewhere, but their customer
On 7/28/06, D F Lively wrote:
> I am inthe process of installing bthe Great Plains system and their calipers
> > have a piston on one side but pads on both.
This is very common, both in autos and motorcycles. You just have to
make sure the slider mechanism works freely, or that will cause
proble
On 7/26/06, Rick Human wrote:
> I believe the articles you are referring to describe Fred Keller's
> experiences rather than Joe Flechtner's - Fred's adventures were written up
> in Sport Aviation and can be found on Don Reid's website.
You mean this one?
http://aerofoilengineering.com/KR/sportav
At 10:41 AM 5/9/06, you wrote:
>I want to hot wire the 18% tapering to 15% but only four feet at a time.
>how do i come up with the middle airfoil?
An airfoil modeling program will help you do this. Profili is one
written by a guy in Italy. Cost is 15 Euro.
www.profili2.com/eng/
If you enter the
At 10:50 PM 5/1/06, you wrote:
>KR Netters (especially you CAD guys):
>
>This question is a two-parter: 1) What CAD software do you use and, 2) What
>would you recommend for a new CAD user / KR builder?
I've used TurboCAD as a hobbyist since version 1.2, and still can't
get my head around the (ne
At 07:30 AM 5/2/06, you wrote:
>Hello all,
>
>Is anyone out there in KR land considering (or now building) a KR2
>that would meet the qualifications for LSA certification? I made a
>search of the archives but there didn't seem to be a lot there as
>far as LSA and KRs go.
After today's spate o
Sorry, didn't mean that last post to go to the list :-(
Regards,
RonB
At 03:56 PM 5/2/06, VIRGIL N SALISBURY wrote:
> How about the KR-1b, Virg
Ran the numbers, 45hp stock 1600, 800lb, 91sf,
Airfoil is funny; center is RAF48 (CL 1.42), outer wings start as
GAW(2) (CL 2.04) tapering to GAW(1) at tip (CL 1.8). Rough average CL of 1.76
Stall 44Top spee
Remeber the newsletters? Used to come in the mail, printed on paper?
Back in March 1977, issue #21, page 2 had a short article on a
builder using douglas fir on his KR, and how he tested and documented
the substitution. The recommendation was to use 19/32" instead of the
full 5/8". This gave pa
At 11:06 PM 3/27/06, D F Lively wrote:
>Carefull selection is required here and probably only premium clear
>grade is all that should be used.
Definitely. However, if you are willing to put up with the waste and
extra work, you can get a significant amount of premium wood from
selected pieces
At 12:34 AM 3/10/06, D F Lively wrote:
>I am taking over a KR2 project ...
>I intend to do all that I can to get it under sport-plane limits ...
Keep in mind that LSA requires the 52 mph max stall speed clean, and
at gross weight. This means that you can _have_ flaps, but you cannot
use them t
After today's spate of LSA discussion, I put together a quick
spreadsheet to calculate various performance parameters based on the
discussion and formulae on this page:
http://zenithair.com/kit-data/ht-86-8.html
The straight Excel version is at:
http://home.mebtel.net/~rbutterfield/KR/Stall_spee
At 10:04 PM 2/28/06, Steve Glover wrote:
>Not for the AS5048 - AS5046...
From Mark's site:
The actual coordinates of all three airfoils are at this page:
http://www.krnet.org/as504x/as504x.html
What these do not give you are the spar locations, sizes, and tail
feathers. Those are on the templa
At 07:50 AM 1/24/06, you wrote:
>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
At 06:04 PM 1/5/06, JAMES C FERRIS wrote:
>I have looked at this also, and on the list of performance of the flying
>KR-2's started by Orma about half of them have performance in the sport
>aircraft rules,
I suspect these numbers are either light, or with flaps, or both. LSA
requires stall at gro
At 10:13 AM 1/5/06, Serge VIDAL wrote:
>he showed me rolls of rigid plastic sheets (looking like old overhead
>projector slides). He said that's what his customers use when they want
>the cured surfaces to be smooth.
>
>That puzzles me. How come we don't do that? Is it because they fear
>trapped bu
At 11:33 PM 12/14/05, Ron Smith wrote:
>Has anyone ever made fiberglass mains for the Kr with a similar
>construction to the Grove gear?
Harold Woods used the fiberglass leaf springs from a Chevy Astro van.
I'll forward his message to you off list.
Regards,
RonB
At 09:54 AM 12/15/05, I wrote:
>Harold Woods used the fiberglass leaf springs from a Chevy Astro van.
My bad, it was someone else, who I can't find at the moment :-(
Regards,
RonB
At 04:18 AM 12/7/05, Serge wrote:
>Obviously, to order that, I needed to identify the screw size correctly
>(remember, I live in Europe, so non-Metric things must be ordered from the
>US by mail order, and the order must be right first time, otherwise...I'm
>screwed!).
One resource for technical
At 02:09 PM 11/29/05, Ron Freiberger wrote:
>What ever happened to the pull-out-to -fill-push-in -to-squirt idea..?.
>Works well, easy to use, and simple. Put one line to each side at the
>top, use a .016 diameter orifice.
The fuel lines don't _have_ to run into the cockpit to do this. It
would
At 10:32 AM 10/16/05, Don wrote:
>I'm an automotive upholsterer by trade and if you don't mind my
>2 cents worth my favorite material to use especially for canopy covers
>is a material called Odyssey Soft Touch manufactured by MarChem Coated
>Fabrics.Inc.. What it is is a light weight coated polye
At 05:15 PM 10/18/05, Don wrote:
>I don't know if Ron is An upholsterer /Canvass guy
I'm not. I've got a local friend who is also a self employed
upholstere , however.
My personal feeling is that it would be better to order something
like this from someone who actually uses it themselves. In th
I have a stash of RG58AU (stranded center conductor, tinned wires) that is
no longer needed. If you guys want some, I can cut off 12 feet and mail it
to you for $2 just to cover postage. Email me off list if interested.
Regards,
RonB
At 10:26 AM 4/22/05, Mark L wrote:
>The project I just finished up (at work) required several hundred knurled
>rivnuts (which are less likely to spin), so we
>learned a lot about them in the fabrication process. ... The problem
>with that is if you don't get it tight enough, the rivnut just
At 07:12 PM 1/18/05, you wrote:
>I have been to the Two largest building supplies in Australia. and they do
>not know what 3 mil thick builders Plastic is. They all say It CAN NOT BE 3
>mil (mm) thick.
Ahh! The dreaded English/Metric wars strike again. ;-)
Over here (USA) plastic is commonly sold
At 03:42 PM 12/5/04, Ron Smith wrote:
>I have constructed the bottom of the fuselage to conform to the shape of
>the AS5048 airfoil.
I would be really interested to see this. I played with the idea for a bit,
but didn't like the way it looked (at least with what I came up with).
Regards,
RonB
Anyone can read the EAA's synopsis of the Sport Pilot rule (19 pages
instead of >400) at the following link:
http://www.sportpilot.org/rule/sp_rule.pdf
(4) A maximum stalling speed or minimum steady flight speed without the use
of lift-enhancing devices (VS1) of not more than 45 knots CAS at the
At 08:53 PM 11/4/04, Brant Hollensbe wrote:
>
> For the president of a dealership to go public and announce that
>he has turned another dealership in and why, is a very poor bussiness
>practice indeed.
Why did nobody notice the AOL.com address and wonder if this is a fake?
As usual, I get suspic
Mark Jones wrote:
> If anyone else knows where we can buy this in
>lesser quantities or even in 4" wide rolls please speak up.
This is untried, and I don't know if the cost per person is advantageous or
not, but in the interest of diseminating information, here goes:
McMaster-Carr has an ultra
At 09:16 AM 10/22/04, you wrote:
>Hi All.
>'Twould seem that my thoughts on building the KR2S in the UK will not be
>coming to pass. This morning I had a communiqué from the PFA telling me
>that the machine as yet is NOT type approved in the UK.
You might want to try and find this guy:
http://home
At 04:12 AM 9/30/04, Gavin wrote:
>I disagree that lift loads are much larger farther from the fuselage on the
>new 504xx wing designs!
>Maybe someone can shed some light on this? the chord of the wing decreases
>as the wing tapers to the tip, therefore reducing the available lift as the
>wing tap
advantage would be simpler wing construction and slightly cleaner
appearance.
The only things I can see as problems are greater stress on the wing attach
fittings and if the construction process requires short wing sections.
But then, I know I don't know it all. That's why I ask ;-)
Re
Dan wrote:
>You have to beg, borrow, or steal to get an EFS-2 now
There is one on Ebay right now, for $399. I know nothing else about it.
Here's the link:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2488752466&category=26437&sspagename=WDVW
Beware line wrap. If the link is
Orma wrote:
>It seems that some where in the past I read that temps are
>different at different places on the head. Is under the plug the hottest
>spot?
Well, I wacked Google on this one
http://www.google.com/search?num=50&hl=en&lr=&ie=UTF-8&q=vw+%22head+temperature+probe%22+&btnG=Search
and came
At 07:15 PM 5/17/04, Orma wrote:
>Man !!! $100 to $150 is too rich for my budget.
How about these?
$15
http://www.vwalley.com/images/head_cc_kit.jpg
I know nothing. I am only a messenger.
Regards,
Ron Butterfield
The basic idea is to take a stock flywheel, cut in down on a lathe to an
appropriate diameter, and drill it with a bolt pattern. This becomes the
flange for a hand-start engine.
Then, a spool is machined from aluminum, with a center section of about
2-3/4" diameter, about 4" long overall, with
At 07:51 PM 3/14/04, you wrote:
> Can anyone give me a source for the 1" "T" stock as mentioned in Dean R.
>Collette's stabilizer/elevator hinge article.
>(http://home.hiwaay.net/~langford/dean_hinge/) I assume it is 1/8" 6061
>material.
McMaster has something very close. www.mcmaster.com S
At 02:55 AM 3/19/04, you wrote:
>Also does anyone know what the difference is between 1/8 BSP (Churchill)
>and 1/8 NPT (Eisenhower)? Must be bugger all at this dimension!!
I can't help with the other questions, but this one I can (I work for a UK
company in the States).
NPT is the US standard
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