KR> Spar

2008-10-12 Thread VIRGIL N SALISBURY
The plans built are adequate, How mch time do you want to spend building ?? Virg On Mon, 1 Aug 2005 14:26:04 -0500 writes: > Thinking of laminating my center spar caps and building in the > dihedral. Do I do this at the center of the spar or where the spar > exits the fuselage? > Patri

KR> Spar questions

2008-10-12 Thread gleone
net@list.krnet.org Date: 02/09/05 08:26:36 To: gle...@rtconnect.net Subject: Re: KR> Spar questions B. Ferguson wrote: > Hello, > > With this discussion on spar strength I was curious to know if any of > the techniques discussed, along with the extra thickness of the 5048 > a

KR> Spar questions

2008-10-12 Thread Ron Freiberger
Nice work Oscar. One thing most people miss in the analysis, however, is the variability of the materials. Wood can be 50 percent (or more) stronger than the published low limit. So, we need to test the actual parts to be used, or allow a reasonable safety factor for the material variability. T

KR> Spar questions

2008-10-12 Thread VIRGIL N SALISBURY
`Standard K R 2 Spar WILL NOT take longer outboard wings and still meet specs, Virg On Tue, 08 Feb 2005 19:10:28 -0600 "B. Ferguson" writes: > Hello, > > With this discussion on spar strength I was curious to know if any > of > the techniques discussed, along with the extra thickness

KR> Spar questions

2008-10-12 Thread B. Ferguson
>But again, RR is emphatic about using the -1B wings on the -2 or -2S. This much I am aware of from the 1B posts Mark L. stirred up a few days before Christmas. Read as much as possible on the 1B in the archives. The question would be was this analysis for the original spars in the old airfoil? T

KR> Spar questions

2008-10-12 Thread Mark Langford
B. Ferguson wrote: > This much I am aware of from the 1B posts Mark L. stirred up a few days > before Christmas. Read as much as possible on the 1B in the archives. > The question would be was this analysis for the original spars in the > old airfoil? It would certainly be for the original spars

KR> Spar questions

2008-10-12 Thread B. Ferguson
Hello, With this discussion on spar strength I was curious to know if any of the techniques discussed, along with the extra thickness of the 5048 airfoil, would add enough strength to the center section to allow for fitting of the 1-B wings? Adding a large amount to the span would no doubtedly l

KR> Spar questions

2008-10-12 Thread Bubba
B. Ferguson wrote: > Hello, > > With this discussion on spar strength I was curious to know if any of > the techniques discussed, along with the extra thickness of the 5048 > airfoil, would add enough strength to the center section to allow for > fitting of the 1-B wings? Adding a large amount to

KR> Spar questions

2008-10-12 Thread Oscar Zuniga
Steve wrote- >I would destruction test a pair of spars if I had the capability. I don't >have any way of putting 4500 pounds of pressure on anything, much less >getting the load distributed right. Why test a pair of spars? One will do. And as far as a test setup and apparatus, check out http:/

KR> Spar questions

2008-10-12 Thread Bubba
Oscar Zuniga wrote: > > Why test a pair of spars? One will do. One stock, one laminated. Gotta have a control :) > And as far as a test setup > and apparatus, check out > http://www.flysquirrel.net/wing/spartest.html and see if you can > duplicate the high-tech test setup detailed there... PS; I

KR> Spar questions

2008-10-12 Thread Dennis Mingear
You can also test a scale model of a spar and obtain good results. Stan Hall discussed the methodology for this in an early Sport Aviation article, two actually. Denny ... Oscar Zuniga wrote: Steve wrote- >I would destruction test a pair of spars if I had the capability. I don't >have any way

KR> Spar dimensions

2008-10-12 Thread Bubba
Does anyone have the dimensions of the spar caps (width and depth) and the length and thickness of the blocks between them handy? I'm bored and feel like figuring out how strong the things are. -- Steve N205FT mystic...@swbell.net He who seeks will find, and he who knocks will be let in.

KR> Spar dimensions

2008-10-12 Thread VIRGIL N SALISBURY
Check your plans, Virg Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl

KR> Spar dimensions

2008-10-12 Thread Bubba
VIRGIL N SALISBURY wrote: >Check your plans, Virg I would if they were here yet... -- Steve N205FT mystic...@swbell.net He who seeks will find, and he who knocks will be let in.

KR> Spar dimensions

2008-10-12 Thread VIRGIL N SALISBURY
And he who waits will get the plans, Virg ( or should this have been sent direct??) On Fri, 4 Feb 2005 14:41:36 -0600 "Bubba" writes: > VIRGIL N SALISBURY wrote: > >Check your plans, Virg > > I would if they were here yet... > -- > Steve > N205FT > mystic...@swbell.net > He who

KR> Spar dimensions

2008-10-12 Thread Bubba
VIRGIL N SALISBURY wrote: >And he who waits will get the plans, Virg ( or should this have > been > sent direct??) And he who plans ahead and verifies the spar design in the plane is suitable for his uses will survive to fly again. -- Steve N205FT mystic...@swbell.net He who seeks will f

KR> spar carbon fiber

2008-10-12 Thread Colin & Bev Rainey
I would still make up 2 samples and test each with and without the carbon fiber to test their different load carrying abilities. I think you may find it interesting. The "cuff" of carbon fiber will move the immediate loading of the spar out board to the bare spar, while the carbon fiber will c

KR> spar carbon fiber

2008-10-12 Thread GavinandLouise
Enough about spars already!!! this has been flogged a thousand times. There must be a structural engineer out there somewhere who would be only too happy to answer any questions about this issue. So maybe we can put it to rest, and only focus on the facts of this issue as documented by someone who

KR> spar carbon fiber

2008-10-12 Thread Donald Reid
At 05:42 PM 12/3/2004, you wrote: >Enough about spars already!!! this has been flogged a thousand times. >There must be a structural engineer out there somewhere who would be only >too happy to answer any questions about this issue. I am a licensed professional engineer and I gave my short answer

KR> spar carbon fiber

2008-10-12 Thread GavinandLouise
Thanks Don. Gav - Original Message - From: "Donald Reid" To: "KRnet" Sent: Friday, December 03, 2004 8:51 PM Subject: Re: KR> spar carbon fiber > At 05:42 PM 12/3/2004, you wrote: > >Enough about spars already!!! this has been flogged a thousand time

KR> spar carbon fiber

2008-10-12 Thread Robert Morrissey
- Original Message - From: "GavinandLouise" Subject: Re: KR> spar carbon fiber > > So maybe we can put it to rest, and only focus on the facts of this issue as > documented by someone who really knows. > Gav I am quite concerned about all the useless discussio

KR> Re: KR spar

2008-10-12 Thread Brant Hollensbe
Jim I think you missed Marks point. It is not that he too lazy to design a new spar for some other guy. Heck just look at his web site to see what he has done for us. Instead he is busy with his own project and his spars are done. If you or anyone else wants to undertake a redesign of the spar,

KR> Re: KR spar

2008-10-12 Thread JAMES FERRIS
I was not referring to the spars, I think he has done real well on that, I was thinking of the foam and glass on the fuselage replaceing the plywood it would be a simple test if someone has all the materials. Jim On Sun, 24 Oct 2004 12:44:01 -0500 "Brant Hollensbe" writes: > Jim > I think you mis

KR> spar material

2008-10-12 Thread Steven Phillabaum
Hello netters, I became a Grandfather Saturday. Boy is he good looking. I have been hanging back until I updated my anti virus program. Its done. As far as KR. I used the material list as specified in the plans and Wicks list. Tried to purchase only the wood for the spars. Wrong. I now hav

KR> Spar taper jig

2008-10-12 Thread Steven Phillabaum
I have a spar taper jig I used to taper the 89.5 inch spars in the plan view. I can't seem to trash it. If someone wants it you can have it. (although you can make one in about one hour.) I might even bring it to the gathering and put it in the give-a-way pile. (Do we have one of those?) How m

KR> Spar taper jig

2008-10-12 Thread larry flesner
At 12:31 PM 8/23/04 +, you wrote: >I have a spar taper jig I used to taper the 89.5 inch spars in the plan view. I can't seem to trash it. If someone wants it you can have it. (although you can make one in about one hour.) I might even bring it to the gathering and put it in the give-a-way pile

KR> spar skins/ Australia

2008-10-12 Thread Phillip Matheson
Gavin I just got the price below from Marine Timbers in Melbourne. The $445 was for most of the Spruce need to build a KR Fuse. and the hoop pine ply per sheet. --- Phillip price for hoop pine as per list - $445.00 3/32 (2mm) ply $66.55 1/8 (3mm) ply $66.55. all prices include GST ex mulgr

KR> spar skins

2008-10-12 Thread skp...@charter.net
Can someone tell me what is the correct skin to use for the spars. I need to place my order this week. The plans call for 3/32 mahog. with birch or popular core. I noticed Mark used birch plywood. According to Wicks prices it would be cheaper and I am about cheaper. Finally (I think this was co

KR> spar skins

2008-10-12 Thread Brian Kraut
mylist.net Subject: KR> spar skins Can someone tell me what is the correct skin to use for the spars. I need to place my order this week. The plans call for 3/32 mahog. with birch or popular core. I noticed Mark used birch plywood. According to Wicks prices it would be cheaper and I am about cheape

KR> spar skins

2008-10-12 Thread skp...@charter.net
Thanks Brian, I think I will be ordering 2 4x8 sheets of Birch.(for spars only). If anyone needs to stop me let me know. Steven Phillabaum Auburn Alabama> > Use M90. > > I used Mahogany but it did cost a lot. My last two KRs had a lighter > colored wood that I assumed was birch but I was no

KR> spar skins

2008-10-12 Thread Mark Langford
Steven Phillabaum wrote: > I think I will be ordering 2 4x8 sheets of Birch.(for spars only). If anyone needs to stop me let me know. You're right about the cedar. That's the one place on the plane that birch is required, rather than mahogony. Mark Langford, Huntsville, Alabama N56ML "at" hiwa

KR> spar skins

2008-10-12 Thread Brian Kraut
Behalf Of Mark Langford Sent: Wednesday, June 30, 2004 10:35 PM To: KRnet Subject: Re: RE: KR> spar skins Steven Phillabaum wrote: > I think I will be ordering 2 4x8 sheets of Birch.(for spars only). If anyone needs to stop me let me know. You're right about the cedar. That's the on

KR> spar skins

2008-10-12 Thread Mark Langford
Sorry about the cedar comment. I had a picture of mahogony in what little brain I have left, and it came out as cedar instead. They kind of look alike, from about a hundred yards or so. I don't have a manual in front of me right now, but I believe the manual says that either mahogany or birch is

KR> spar skins

2008-10-12 Thread StRaNgEdAyS
"Somebody else is welcome to check for us..." Ok I'm reading it right now, so I'll have a look p.19. "3/32 plywood 3 ply mahogany, birch or poplar center." Cheers. Peter Bancks stranged...@dodo.com.au http://www.homebuiltairplanes.com http://canardaviationforum.dmt.net

KR> spar skins

2008-10-12 Thread Mark Langford
For what it's worth, from the KRnet search engine at http://www.maddyhome.com/krsrch/index.jsp , using "birch plywood spar" got a bunch of hits, the one below included. Maybe it's where I got the idea, but I don't think anybody will argue that birch is not the stronger of the two, and hence a good

KR> spar skins

2008-10-12 Thread Mark Langford
And having said that, here's one from Don Reid where he advocates running the grain horizontal, rather than vertical. I'd trust just about anything Don says as gospel. -- List-Post: krnet@list.krnet.org Date: Jul 20, 1999 8:27 AM From: Donald Reid Sub

KR> spar skins

2008-10-12 Thread Brian Kraut
tives, Inc. www.engalt.com -Original Message- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of StRaNgEdAyS Sent: Thursday, July 01, 2004 7:44 AM To: kr...@mylist.net Subject: Re: RE: KR> spar skins "Somebody else is welcome to check for us..." Ok I'm readin

KR> spar skins

2008-10-12 Thread GavinandLouise
e ply) and at about $80 aud for an 8' x 4' sheet it's a whole lot cheaper than all the other aicraft grade products! Gavin Australia - Original Message - From: "StRaNgEdAyS" To: Sent: Thursday, July 01, 2004 9:43 PM Subject: Re: RE: KR> spar skins

KR> spar skins

2008-10-12 Thread Brian Kraut
[mailto:krnet-boun...@mylist.net]On Behalf Of Mark Langford Sent: Thursday, July 01, 2004 8:06 AM To: KRnet Subject: Re: RE: KR> spar skins And having said that, here's one from Don Reid where he advocates running the grain horizontal, rather than vertical. I'd trust just about anyt

KR> spar skins

2008-10-12 Thread Mark Langford
> thickness # plysparallel perpendicular > 0.125" 3 15.17 5.544 ... but after looking at these numbers, I think I just started an argument with myself. I had to wonder what's wrong with vertical, since that would be "parallel to the grain", and by far the strongest.

KR> spar skins

2008-10-12 Thread Wood, Sidney M.
No one has mentioned the 5/8" vertical spruce blocks that the plans call for when building KR spars. The spars are a variant of an I-beam. The function of the web in any I beam or box beam is to keep the two caps from coming together. No matter what loading is put on the beam - plus or minus

KR> spar skins

2008-10-12 Thread Donald Reid
At 08:52 AM 7/1/2004, you wrote: > > thickness # plysparallel perpendicular > > 0.125" 3 15.17 5.544 > >... but after looking at these numbers, I think I just started an argument >with myself. I had to wonder what's wrong with vertical, since that would >be "parallel

KR> spar skins

2008-10-12 Thread Bernard Wunder
I thought you were an electrical engineer :) On Thu, 1 Jul 2004 09:21:24 -0400 "Wood, Sidney M." wrote: >No one has mentioned the 5/8" vertical spruce blocks that >the plans call for when building KR spars. The spars are >a variant of an I-beam. The function of the web in any I >beam or b

KR> spar skins

2008-10-12 Thread Brian Kraut
Sent: Thursday, July 01, 2004 9:21 AM To: KRnet Subject: RE: KR> spar skins Plywood has an odd number of plies with outside plies in the same grain orientation. That is the strongest dimension orientation. Sid Wood, Tri-gear KR-2 N6242 Mechanicsville, MD USA sidney.w...@t

KR>Spar lamination direction - Oops

2008-10-12 Thread Stephen Jacobs
My main reason for stating that you should not drill through the glue joint was because it is very hard to keep a drill bit going straight + Good point - could ruin an expensive spar if the drill bit goes walkies. >>>. If I build anoth

KR>Spar lamination direction - Oops

2008-10-12 Thread Donald Reid
At 09:58 AM 6/10/2004, you wrote: >Thanks - that gives me more confidence. Still bothers me that Don Reid >did not like the idea - I was expecting a boffin (like him) to step up >and declare this to be as good as (or better). > >My instinct is to stagger the WAF bolt holes so as to void having th

KR>Spar lamination direction - Oops

2008-10-12 Thread tncompressor...@aol.com
In a message dated 6/10/2004 9:59:54 AM Eastern Standard Time, ask...@microlink.zm writes: What size bolt holes are required for mounting the Diehl type u/c? (I have old KR plans with retracts). I presume that the Grove rendition has bolts all the way through the spar from the bottom up? Steve,

KR>Spar lamination direction - Oops

2008-10-12 Thread Edward Seaman
I was expecting a boffin (like him) to step up and declare this to be as good as (or better). You should notice that in my original answer, I said "should not go through the glue line". I did not say "must not". .. And then gods came down from the heavens and the gods spoke.

KR>Spar lamination

2008-10-12 Thread Dan Heath
What's a boffin? See N64KR at http://KR-Builder.org - Then click on the pics "There is a time for building and a time for flying, and the time for building has long since expired." Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2004 - KR Gathering See our EAA Chapter 242 at http://EAA

KR>Spar lamination direction - Phew

2008-10-12 Thread Stephen Jacobs
I would try to align the laminations so that the hole misses the glue Line. If I could not, then I would make darn sure that the hole is well drilled, perpendicular and also reamed to size. As long as the spacing is greater than the allowable minimum, it makes no difference at all whether the

KR>Spar lamination

2008-10-12 Thread Ron Freiberger
Dan said, What's a boffin? Dan, About a dollar eighty ;o) Ron Freiberger mailto: rfreiber...@swfla.rr.com

KR>Spar lamination direction - Phew

2008-10-12 Thread Brian Kraut
t.net]On Behalf Of Stephen Jacobs Sent: Friday, June 11, 2004 12:34 PM To: 'KRnet' Subject: RE: KR>Spar lamination direction - Phew I would try to align the laminations so that the hole misses the glue Line. If I could not, then I would make darn sure that the hole is well drilled,

KR>Spar lamination direction - Phew

2008-10-12 Thread Donald Reid
At 06:51 PM 6/11/2004, you wrote: >I was reading Tony Bingellis's book last night and he said not to ream a >hole in wood because it will come out oversized. I have never tried it. I did a set of tests before I did mine. After reaming, the fit was perfect. Half of the bolts were very difficult

KR> Spar lamination direction

2008-10-12 Thread Brian Kraut
Mark, I noticed on your web page that you laminated the spar caps with the pieces one on top of the other as viewed with the spar standing vertically. The plans don't really say, but a spruce list I have from Rand seems to indicate that the pieces were intended to go side by side, as in the glue jo

KR> Spar lamination direction

2008-10-12 Thread Donald Reid
At 07:15 PM 6/8/2004, you wrote: >Mark, I noticed on your web page that you laminated the spar caps with the >pieces one on top of the other as viewed with the spar standing vertically. >The plans don't really say, but a spruce list I have from Rand seems to >indicate that the pieces were intended

KR> spar construction

2008-10-12 Thread Brian Kraut
Before I looked at Mark's site I did a lot of thinking on what order I would do what on my spar construction and this is what I came up with. I needed to buy a 12' countertop anyway for my office so I was going to level it with a precision machinist's level to be sure it was perfectly flat and lev

KR> spar construction

2008-10-12 Thread Mark Jones
me at flyk...@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html - Original Message - From: "Brian Kraut" To: "KRnet" Sent: Tuesday, June 08, 2004 8:55 PM Subject: KR> spar construction > Before I looked at

KR> spar construction

2008-10-12 Thread Phillip Matheson
that T-88 is as slick as owl poop until it starts to set and things can move around if you are not careful. Never seen owl poop But, Warm the T88 in hot water, or warm water, or sit it the sun, it works much better, but may GO off a bit faster Phillip Matheson mathe..

KR> spar construction

2008-10-12 Thread Brian Kraut
, Inc. www.engalt.com -Original Message- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Mark Jones Sent: Tuesday, June 08, 2004 10:24 PM To: KRnet Subject: Re: KR> spar construction Sounds like a plan to me Brian. And well thought out. You should have suffici

KR>Spar lamination direction - Oops

2008-10-12 Thread Stephen Jacobs
His take on it is exactly that, it doesn't matter either way, but don't put a bolt through the glue line. +++ This would otherwise be my reaction as well - but I am forced to give the matter more thought. My centre section spar caps comprise 6mm (1/4") laminations to allo

KR>Spar lamination direction - Oops

2008-10-12 Thread Mark Langford
Steve Jacobs wrote: > My second reaction was to re-read all my material on glue joints. Every > indication is that a properly done glue joint is as at least as strong > as the host material. A scarf joint is allowed in a wing spar (cap) > according to AC43 - at an angle similar to the minimum sp

KR>Spar lamination direction - Oops

2008-10-12 Thread Brian Kraut
...@mylist.net]On Behalf Of Mark Langford Sent: Thursday, June 10, 2004 7:20 AM To: KRnet Subject: Re: KR>Spar lamination direction - Oops Steve Jacobs wrote: > My second reaction was to re-read all my material on glue joints. Every > indication is that a properly done glue joint is as at

KR> spar cap width

2008-10-12 Thread Edward Seaman
Outer spars taper to 1" in plan view and 11/16 in side view (front view) For what it is worth, I think that is crazy - reduces attachment area for wing surfaces (skins). Mine will taper in front view only - constant 1-15/16 thickness in plan view for max glue area. Need the rear spars? Ed

KR> spar cap width

2008-10-12 Thread boeing757me...@aol.com
In a message dated 5/21/2004 8:13:09 AM US Mountain Standard Time, edpsea...@yahoo.co.uk writes: Outer spars taper to 1" in plan view and 11/16 in side view (front view) Well, Which airfoil are you using? If I had it to do over again I would make my spar caps thicker at the root on the outer wi

KR> spar cap width

2008-10-12 Thread Mikko Nikunen
s and what kind of landing gear you are going to use? BR: Mikko riginal Message - From: To: Sent: Friday, May 21, 2004 10:21 PM Subject: Re: KR> spar cap width > In a message dated 5/21/2004 8:13:09 AM US Mountain Standard Time, > edpsea...@yahoo.co.uk writes: > Outer spa

KR> spar cap width

2008-10-12 Thread skp...@charter.net
Thanks Edward. Stupid question... Is the height of the root end of the outside spar the same as the height of the center spar? From what I can tell it is. Steven Phillabaum Auburn, Alabama > > From: Edward Seaman > Date: 2004/05/21 Fri PM 03:12:27 GMT > To: KRnet > Subjec

KR> spar cap width

2008-10-12 Thread Edward Seaman
> Stupid question... Is the height of the root end of > the outside spar the same as the height of the > center spar? From what I can tell it is. The only stupid question is the one you have, but don't ask. No - they are not the same - the centre section cap is 2" deep and the outer is 1-7/8"

KR> spar cap width

2008-10-12 Thread boeing757me...@aol.com
In a message dated 5/24/2004 5:15:43 AM US Mountain Standard Time, edpsea...@yahoo.co.uk writes: > Stupid question... Is the height of the root end of > the outside spar the same as the height of the > center spar? From what I can tell it is. I think he is asking if the outer spars total thicknes

KR> spar cap width

2008-10-12 Thread skp...@charter.net
YES, Thank you. The net can answer questions. Steven > > From: boeing757me...@aol.com > Date: 2004/05/24 Mon PM 03:43:56 GMT > To: kr...@mylist.net > Subject: Re: KR> spar cap width > > In a message dated 5/24/2004 5:15:43 AM US Mountain Standard Time, > e

KR> spar cap width

2008-10-12 Thread skp...@charter.net
Help I am missing something. I can't find the width (plan view) for the the spar cap of the outboard forward spar. I have found dimension errors (I think). I am using the New wings as down loaded from Marks site. I don't need any other dimensions If you know the answer please let me know

KR> spar cap width

2008-10-12 Thread Mark Langford
> I can't find the width (plan view) for the the spar cap of the outboard forward spar. Those spars in plan view are the same as the KR2S plans call for, so look in your RR plans for those numbers. >I have found dimension errors (I think). Oh, really? Mark Langford, Huntsville, Alabama N56ML "a

KR> spar cap width

2008-10-12 Thread skp...@charter.net
I wrote, > > I can't find the width (plan view) for the the spar cap of the outboard > forward spar. Mark wrote > Those spars in plan view are the same as the KR2S plans call for, so look in > your RR plans for those numbers. Thanks, I of course found 1 15/16" x 1 7/8" x 78" for the outside forw

KR> Spar Design

2008-10-12 Thread Stephen Jacobs
Good day all - some advice would be greatly appreciated. My plans are very old (circa 1976/77) so some of this may not make sense to those with more recent issues. The spar pillar spacing for the centre section (Main Spar) varies - typically: FWD Spar Dwg 5 (from the centre out) - 7.5"; 7"; 5";

KR> Spar Integrity

2008-10-12 Thread joe
Just a reminder(probably not needed here), that increasing the structural integrity along one axis may also call for compensation along other axis.

KR> Spar Integrity

2008-10-12 Thread Stephen Jacobs
>>> Just a reminder(probably not needed here), that increasing the >>> structural integrity along one axis may also call for compensation >>> along other axis. Roger that Joe - I am reading as much as I can on that. Are you referring to wing rigidity in twisting as the other axis? I read things

KR> Spar Integrity

2008-10-12 Thread joe
quot; Sent: Tuesday, April 06, 2004 5:27 PM Subject: RE: KR> Spar Integrity > >>> Just a reminder(probably not needed here), that increasing the > >>> structural integrity along one axis may also call for compensation > >>> along other axis. > > > R

KR> Spar Design

2008-10-12 Thread Edward Seaman
--- Stephen Jacobs wrote: > > Hi Stve Been watching for a while and joined recently - hope to start a KR2S this summer. +++My plans are very old (circa 1976/77) No kidding - that is nearly 30 years - how long has this little airplane been around? +++Maybe spar breathing? I have seen pictures

KR> Spar Design

2008-10-12 Thread larry severson
>+++My plans are very old (circa 1976/77) Get the new ones (1990). They are substantially better. (I have both). >No kidding - that is nearly 30 years - how long has >this little airplane been around? 1972. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 lar...@socal.rr.com

KR>spar cap width

2008-10-12 Thread skp...@charter.net
Good morning. I looked in the KR Archive and did not find my answer. Is the Spar caps the same width on the new wing (AS5048/5) as the wing with the plans? Should I change my spruce order other than the basic order for the KR2S? Steven Phillabaum Auburn, AL.

KR>spar cap width

2008-10-12 Thread Mark Langford
Steven Phillabaum wrote: > Is the Spar caps the same width on the new wing (AS5048/5) as the wing with the plans? Should I change my spruce order other than the basic order for the KR2S?< Spar caps are made from the same wood. If anything, you might need a little more of the spacer material bet

KR>spar alignment / followup/ Gathering

2008-10-12 Thread larry flesner
When building the "boat", the spreading of the top longerons tends to pull the top of the firewall back and thus give the engine thrust line a slightly positive angle. This might further explain the need for many KR's to fly with a more nose down attitude. Using the firewall as a reference when

KR>Spar questions

2008-10-12 Thread Gavin Donohoe
Hi All, Wow I've had a big day I got about 10 hours done on my 2S. Horizontal stab glassed on the top, Spars fitted and ready for gluing, it's amazing how much time can be spent checking and double checking for level. Cockpit floor made and ready to glue in once I establish where my rudder p

KR>Spar questions

2008-10-12 Thread Dan Heath
Gavin, 1 layer of glass is good. If you overlap the top around to the bottom about 2 inches and the bottom around to the top, about 2 inches, you will have 2 layers on the leading edge which is good. Search the archives on this sealer topic. You will find that the favorite is to use resin, thinn

KR>spar question

2008-10-12 Thread larry flesner
>Question - How long does my rear spar have to be, what is the angle of my rear spar, what are the angles to make the rear wafs to (#2 fitting and #3 fitting), what dimension from the bend line are my end mount holes? Steve Steve, If I

KR>spar question

2008-10-12 Thread larry flesner
At 06:23 AM 1/8/04 -0600, you wrote: >>Question - How long does my rear spar have to be, what is the angle of my >rear spar, what are the angles to make the rear wafs to (#2 fitting and #3 >fitting), what dimension from the bend line are my end mount holes? >Steve >

KR>spar webbs

2008-10-12 Thread robert tallini
I hope I am using the correct procedure as this is my first communication th KRNet. I do want to reply to the inquiry regarding the application of ply webbs on the wing spars. There is a b apparent inconsistency in the directions given in the manual and those given in the plans. I brought thi

KR>Spar dimensions, help needed

2008-10-12 Thread veedu...@aol.com
To All, I've been asked to assist in the repair of what appears to be a KR derivitive. The center section of the box-type front spar is fabricated in the typical KR method of upper & lower booms faced with ply shear webs. Wing is fiberglas over foam. The plane is not new and has accumulated

KR>Spar dimensions, help needed

2008-10-12 Thread Mark Langford
Bob Hoover wrote: > Question: Is 1-1/2" the normal thickness for these booms? The KR main spar caps for the center section are usually 2" thick (top to bottom) and 2-5/32" wide with vertical spacer blocks every 7-9", faced with 3/32" plywood. The whole thing is about 7.2" tall. The outboard wi

KR>Spar dimensions, help needed

2008-10-12 Thread Ron Freiberger
veedu...@aol.com Sent: Monday, October 13, 2003 4:49 PM To: kr...@mylist.net Subject: KR>Spar dimensions, help needed To All, I've been asked to assist in the repair of what appears to be a KR derivitive. The center section of the box-type front spar is fabricated in the typical KR method of upper

KR>Spar dimensions, help needed

2008-10-12 Thread Wayne Israelsen
ginal Message - From: To: Sent: Monday, October 13, 2003 1:48 PM Subject: KR>Spar dimensions, help needed > To All, > > I've been asked to assist in the repair of what appears to be a KR > derivitive. The center section of the box-type front spar is fabricated in the typ

KR>Spar dimensions, help needed

2008-10-12 Thread veedu...@aol.com
In a message dated 10/13/03 3:22:29 PM Pacific Daylight Time, wa...@hispeedwireless.com writes: > Does anyone realise that bob hoover is on the krnet? --- Dear Wayne, You may have me confused with the real Bob Hoover. He's the world's b

KR>Spar dimensions, help needed

2008-10-12 Thread Wayne Israelsen
Sorry I guess I just got all afire and jumped without looking close.But just so you know I'm telling my wife that I talked to Bob Hoover today. Thanks Wayne - Original Message - From: To: Sent: Monday, October 13, 2003 3:48 PM Subject: Re: KR>Spar dimensions, help needed > I

KR>Spar dimensions, help needed

2008-10-12 Thread Mark Langford
Bob Hoover wrote: > You may have me confused with the real Bob Hoover. He's the world's best > pilot. I'm a part-time mechanic. Don't let him fool you with that modesty. He's THE Bob Hoover in my book... the guy that's done more for the total understanding of VW engines than any other person o

KR>Spar dimensions, help needed

2008-10-12 Thread Wayne Israelsen
Mark Langford To: KR builders and pilots Sent: Monday, October 13, 2003 4:41 PM Subject: Re: KR>Spar dimensions, help needed > Bob Hoover wrote: > > > You may have me confused with the real Bob Hoover. He's the world's best > > pilot. I'm a part-time mecha

KR>Spar dimensions, help needed

2008-10-12 Thread David Mikesell
209-609-8774 skyguy...@skyguynca.com www.skyguynca.com - Original Message - From: To: Sent: Monday, October 13, 2003 3:48 PM Subject: Re: KR>Spar dimensions, help needed > In a message dated 10/13/03 3:22:29 PM Pacific Daylight Time, > wa...@hispeedwireless.com writes: > >

KR>Spar dimensions, help needed

2008-10-12 Thread lo...@gateway.net.au
- Original Message - From: To: Sent: Tuesday, October 14, 2003 4:48 AM Subject: KR>Spar dimensions, help needed > To All, > > I've been asked to assist in the repair of what appears to be a KR > derivitive. The center section of the box-type front spar is fabri

KR>Spar and glue

2008-10-12 Thread Colin
Gavin, All that I have read and found while working myself is that you should wipe up the glue as you assemble; it is too easy to damage the joint or surrounding wood chipping off, especially near joints. Also don't clamp the joints so tight as to squeeze all the glue out. Apply just enough pres

KR>Spar and glue

2008-10-12 Thread Mark Youkey
>nor as heavy. If you have the dihedral begin at the fuselage, then the spar has to be alot stronger, and therefore heavier. If this is true, and I don't have reason to doubt him, then basically doing away with the stub wing and beginning the dihedral at the fuselage will require a significantly s

KR>Spar brackets

2008-10-12 Thread timboy...@wmconnect.com
I'm open for suggestions on how to bend the rear spar brackets forward the 3 degrees. Im not sure myself how to do correctly Can anyone help.. Thanks Tim Gettysburg PA

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