From: owner-krnet-l-digest@teleport.com[SMTP:owner-krnet-l-digest@teleport.com] Sent: Thursday, May 14, 1998 2:59 PM To: krnet-l-digest@teleport.com Subject: krnet-l-digest V2 #80 krnet-l-digest Thursday, May 14 1998 Volume 02 : Number 080 ---------------------------------------------------------------------- Date: Mon, 11 May 1998 20:39:05 -0700 From: Micheal Mims Subject: Re: KR: KR UN*UBSCRIBE At 08:09 PM 5/11/98 -0600, you wrote: >PLEASE,UN*UBSCRIBE ME FOR AWHILE. > >THANKS > >L.NEWMAN >manair@cyberhighway.net > You have to do that yourself, for info on how to do it go to one of the web sites. Or to http://www.krnet.org Hey yall when sending post the list do not use the words sub*cribe or unsub*cribe. This plays havoc with the email-remailer. zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims SP290,.. Filling and sanding now! mailto:mikemims@pacbell.net http://www.geocities.com/CapeCanaveral/Hangar/4136/ Irvine Ca Fax 714.856.9417 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------------------------------ Date: Mon, 11 May 1998 22:39:59 -0500 From: Trent Flemming Subject: KR: Newbie Question >Hi, Group > >Allow me to introdue myself, > >Trent Flemming >Project KR-2S (waiting on the plans, UPS lost them) >Area East, Texas > >I have been enjoying the post for quit awhile now, but I haven't seen the >answers to the following questions. > >1. The Spruce Kit in group 1 from Rand is priced at $830.00, but the >Spruce Kit for AS&S is listed at $674.00. Why such a price difference. >Doesn't Rand get these materials either from Wicks or AS&S. > >2. Can the fuel tanks be installed in the wings, or is this pratical? > >3. Does a Tri Gear suffer much in performance over the Taildragger due to drag? > >4. Anybody have a price estimate on a totally completed KR-2S? > >5. Is anyone building a KR or flying a KR live near East Texas? > >Thanks for any help with the Newbie Questions, sorry to take time away from >anyone building their KRs. > >Trent Flemming > > ------------------------------ Date: Mon, 11 May 1998 23:00:06 -0000 From: "Brian J Bland" Subject: KR: Re: Newbie Question >>Hi, Group >> >>Allow me to introdue myself, >> >>Trent Flemming >>Project KR-2S (waiting on the plans, UPS lost them) >>Area East, Texas >> >>I have been enjoying the post for quit awhile now, but I haven't seen the >>answers to the following questions. >> >>1. The Spruce Kit in group 1 from Rand is priced at $830.00, but the >>Spruce Kit for AS&S is listed at $674.00. Why such a price difference. >>Doesn't Rand get these materials either from Wicks or AS&S. They aren't in it just for the fun of it! :) I'm not even sure why they are still in business. They don't seem to want the KR to advance. >> >>2. Can the fuel tanks be installed in the wings, or is this pratical? Yes tanks can be installed in the wings. I will let the guys that have already experienced wing tanks give further info. >> >>3. Does a Tri Gear suffer much in performance over the Taildragger due to >drag? A tri-gear thar is properly faired shouldn't suffer much. Tom Crawford is now getting 185 MPH out of his tri-gear. >> >>4. Anybody have a price estimate on a totally completed KR-2S? Depends on what you want to spend and how much of it you want to build from scratch. I know that mine and Mike Mims will be completed for close to $10,000. >> >>5. Is anyone building a KR or flying a KR live near East Texas? Bobby Muse is down there in Texas somewhere. If you can't find any there is at least one that you could get a ride in at Tulsa, OK. Make it to the '98 Gathering in Perry!! >> >>Thanks for any help with the Newbie Questions, sorry to take time away from >>anyone building their KRs. >> >>Trent Flemming >> >> > Brian J. Bland Claremore, OK bbland@busprod.com http://www.busprod.com/bbland/kr2s.html ------------------------------ Date: Tue, 12 May 1998 07:56:30 EDT From: LngDistRep Subject: KR: Good Morning To All Hello from Orlando, Just wanted say hi to all here and thanks for all the helpful info on KR-2 construction. Aquired our first partial built KR-2 and looking to get started on hours of enjoyment. Wondering if there are any local KR-2 builders around the Orlando, Florida area with projects in motion. How about some hangar talk and advice. See you all in the clouds. Regards, Paul ------------------------------ Date: Tue, 12 May 1998 08:10:03 -0700 From: Tom Crawford Subject: Re: KR: KR2 Expert Needed Thomas Gatliff wrote: > > Hello, > > I am new to the whole KR2 thing and was wondering if someone would possible > mind in taking me up in a KR2 to get some experience in one. I would be > more than happy to compensate anyone for their help. I currently have about > 125 hours in primarily C150 and C172's and I also just started my > taildragging in a Super Cub. I live in Macon, Georgia, which is about 1 > hour from Atlanta, Georgia. Although, It would be nice if I could find > someone in Atlanta, I would be willing to go almost anywhere to get the > chance to fly one. > > All Comments Greatly Appreciated! > > Thomas Gatliff > gatliff@mindspring.com > (912) 745-7862 Tom, First- some vital statistics. How tall are you and how much do you weigh? Tom Crawford tomc@afn.org Gainesville, FL N262TC ------------------------------ Date: Tue, 12 May 1998 06:58:35 -0500 From: "Randy Stout" Subject: KR: RE: Newbie Question > -----Original Message----- > > > > > >1. The Spruce Kit in group 1 from Rand is priced at $830.00, but the > >Spruce Kit for AS&S is listed at $674.00. Why such a price difference. > >Doesn't Rand get these materials either from Wicks or AS&S. > Spruce prices have gone up since Wicks and AS&S have put out their catalogs. I ordered just the spruce for my spars from AS&S in January. The cost was just over $600.00. If you call them, I'm sure they'll quote you a higher price than what is in their catalog. > >5. Is anyone building a KR or flying a KR live near East Texas? I'm in San Antonio, If you're out this way look me up. After we look at my plane we could go see if we could bug Bobby Muse. He's in Wimberly (about 30 minutes from here). I've been wanting an excuse to go look at his plane. > >Thanks for any help with the Newbie Questions, sorry to take > time away from > >anyone building their KRs. > > > >Trent Flemming > > > > > > Randy Stout - San Antonio TX r5t0ut@flash.net ------------------------------ Date: Tue, 12 May 1998 08:24:06 -0400 From: Donald Reid Subject: Re: KR: Newbie Question Trent Flemming wrote: > >1. The Spruce Kit in group 1 from Rand is priced at $830.00, but the > >Spruce Kit for AS&S is listed at $674.00. Why such a price difference. > >Doesn't Rand get these materials either from Wicks or AS&S. RR has a note in the price lists, "subject to change without notice", etc. The spruce prices are dynamic and variable, but probably only go up. > >2. Can the fuel tanks be installed in the wings, or is this pratical? Sure, you just need some plumbing, valve(s), and a fuel pump. > >4. Anybody have a price estimate on a totally completed KR-2S? I have made everything from scratch and the total bill is $6900, not counting the engine, instruments, prop, ballistic chute, or paint. This was for aircraft grade wood and hardware. Almost all major pieces finished, 80 percent done and 20 percent to go (or maybe 80 done, 80 to go) - -- Don Reid Bumpass, Va. mailto:donreid@erols.com KR2XL at http://www.erols.com/donreid/kr_page.htm Ultralights at http://www.erols.com/donreid/usua250.html ------------------------------ Date: Tue, 12 May 1998 19:00:44 -0500 From: "Mark Langford" Subject: KR: email addresses I notice that a lot of you guys have your email address in your signature, but that it's not showing up as hypertext. Stick a "mailto:" in front of it and it'll make emailing privately much easier... Mark Langford mailto:langford@hiwaay.net see KR2S project at http://home.hiwaay.net/~langford/kr2s.html ------------------------------ Date: Tue, 12 May 1998 19:00:42 -0500 From: "Mark Langford" Subject: KR: new airfoil progress KRNetHeads, Some folks have asked about progress on the new airfoil. The AS5045 (15%), AS5046 (16%), and AS5048 (18%) airfoils are finalized and coordinates have been published. For more details on the comparison between these new airfoils and the RAF48, visit Askok's web page at http://amber.aae.uiuc.edu/~ashok/kr2/airfoils/ . You don't have to be a rocket scientist to figure out what they mean. Stall speed is similar to the RAF, but top speed is higher. Flaps will give you the best at both ends. Mark Lougheed has done a pretty awesome CFD analysis of the wing at various angles of attack, and has come up with a preliminary incidence of 1 degree with 3 degrees of washout as it applies to the KR2S. We're waiting on a few more opinions from Ashok and Karthik for a reality check. Troy Petteway is sanding foam on his wings, and I have my templates installed and will do some foam tonight. Wind tunnel tests of two of airfoils will commence next week. Thanks to all who contributed and enabled this small miracle to happen. I ordered lots of Type 4 parts today, so let the fun commence. Still going with CIS injection, but space requirements may force me to go with a sidedraft Weber 40DCOE instead. I hit the 1500 hour mark this weekend. Assuming I'm half way done, I'll have to do 21.4 hours per week to fly to the '99 Gathering. Maybe I should just buy a trailer now... Mark Langford mailto:langford@hiwaay.net see KR2S project at http://home.hiwaay.net/~langford/kr2s.html ------------------------------ Date: Tue, 12 May 1998 19:54:34, -0500 From: YCGB97A@prodigy.com (MR JEAN R VERON) Subject: Re: KR: KR2 Expert Needed Jeff No I didn't give any rides last year. I didn't feel comfortable enough with the winds as they were. I will this year. Progress is going slow now. The big ticket items I got but the $10. & $20. items are eating my lunch. Thought I would make Sun N Fun but Oshkosh is more realistic if i plan to stay married. Jean N4DD Broken Arrow,OK ------------------------------ Date: Tue, 12 May 1998 20:31:37 -0400 From: "Richard Parker" Subject: KR: Re: a picture is worth....... This is a multi-part message in MIME format. - ------=_NextPart_000_0004_01BD7DE4.F6AB9F60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tom Crawford. =20 Thankyou. I got fuel tank your pictures today. Barring anything bad = happens tommorrow (like I actually have to do some work) I will be = scanning them tomorrow, posting them up to a web page and returning them = to you. If I dont manage to get them done tomorrow it will probably be = Friday. Thursday is reserved for flying the VFR corridor down the = Hudson east of Manhattan and the statue of Liberty.=20 Thanks again,=20 Rich Parker Jaffrey, NH theparkers@monad.net http://top.monad.net/~theparkers/kr.htm - ------=_NextPart_000_0004_01BD7DE4.F6AB9F60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Tom Crawford. 
 
Thankyou.  I got fuel tank your pictures = today. =20 Barring anything bad happens tommorrow (like I actually have to do some = work) I=20 will be scanning them tomorrow, posting them up to a web page and = returning them=20 to you.  If I dont manage to get them done tomorrow it will = probably be=20 Friday.  Thursday is reserved for flying the VFR corridor down the = Hudson=20 east of  Manhattan and the statue of Liberty.
 
Thanks again,
 
Rich Parker
Jaffrey, NH
theparkers@monad.net
http://top.monad.net/~th= eparkers/kr.htm
- ------=_NextPart_000_0004_01BD7DE4.F6AB9F60-- ------------------------------ Date: Tue, 12 May 1998 21:05:26 -0500 From: "Mark Langford" Subject: KR: removable fuel tank This is a multi-part message in MIME format. - ------=_NextPart_000_0006_01BD7DE9.AFDA1940 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Rich, Another way to make your forward deck and tank removable is depicted at http://home.hiwaay.net/~langford/kmlfd.html . Pull two pins and it lifts right off. Haven't seen Tom's yet, but I'm sure it's cool too. Statue of Liberty? I guess if it's the best you can do... Mark Langford mailto:langford@hiwaay.net see KR2S project at http://home.hiwaay.net/~langford/kr2s.html - ------=_NextPart_000_0006_01BD7DE9.AFDA1940 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Rich,
 
Another way to make your forward deck and tank removable is = depicted at=20 http://home.hiwaay.n= et/~langford/kmlfd.html=20 .  Pull two pins and it lifts right off.  Haven't seen Tom's = yet, but=20 I'm sure it's cool too.  Statue of Liberty?  I guess if it's = the best=20 you can do...
 

Mark Langford
mailto:langford@hiwaay.net
see KR2S project at http://home.hiwaay.net/~langford/kr2s.html =

 
 
- ------=_NextPart_000_0006_01BD7DE9.AFDA1940-- ------------------------------ Date: Tue, 12 May 1998 21:05:25 -0500 From: "Mark Langford" Subject: KR: CFD airfoil images NetHeads, I forgot to mention that Mike Mims animated some of Mark Lougheed's AS5045 graphics at http://a51.wetworks.org/lougheed/cfd/as5045.html . It takes about 2 or 3 minutes to load, but when it gets started, it shows how the flow acts as the wing goes from 0 degrees to 16 degrees angle of attack. Check it out. Maybe he'll do a flapped version next. Mark Langford mailto:langford@hiwaay.net see KR2S project at http://home.hiwaay.net/~langford/kr2s.html ------------------------------ Date: Tue, 12 May 1998 22:04:30 -0600 From: jscott.pilot@juno.com (Jeffrey E Scott) Subject: Re: KR: KR2 Expert Needed I couldn't remember for sure. I thought that old airplane was so used to doing rides that it might go without you. :o) It was a bit breezy and bumpy last year. - ------- Jeff Scott - Los Alamos, NM On Tue, 12 May 1998 19:54:34, -0500 YCGB97A@prodigy.com (MR JEAN R VERON) writes: >Jeff > No I didn't give any rides last year. I didn't feel comfortable >enough with the winds as they were. I will this year. Progress is >going slow now. The big ticket items I got but the $10. & $20. items >are eating my lunch. Thought I would make Sun N Fun but Oshkosh is >more realistic if i plan to stay married. >Jean >N4DD >Broken Arrow,OK > _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866] ------------------------------ Date: Wed, 13 May 1998 02:32:41 EDT From: HAshraf Subject: KR: Elevator/Rudder hinge material Hi, I would appreciate the help on the following. I need to find out where can one find the Al channels for elevator hinge. I would like to use five hinges instead of three as specified in the plans. Neither AS&S regular and Wicks catalog (online) catalog lists them. Also, how much a stock elevator weigh? I need to find out the moment arm of a 100% balanced elevator and whether the balancing weight can be enclosed in the tail. Thanks Haris ------------------------------ Date: Wed, 13 May 1998 07:05:18 EDT From: KR2 616TJ Subject: Re: KR: Elevator/Rudder hinge material In a message dated 98-05-13 02:33:37 EDT, you write: << I need to find out where can one find the Al channels for elevator hinge. I would like to use five hinges instead of three as specified in the plans. Neither AS&S regular and Wicks catalog (online) catalog lists them. Also, how much a stock elevator weigh? I need to find out the moment arm of a 100% balanced elevator and whether the balancing weight can be enclosed in the tail. Thanks Haris >> I don't think you are going to find prefab hinges made especially for a KR and listed so. Mark Langford, did you ever post a picture of the hinge idea from Huntsville III (Langfordkosh)? Just find the stock material that the ID and OD match. As for balancing the elevator, go the Mark's page again, he has a neat counter balance arm that extends into the turtle deck area. If he does not have a picture, let me know I know I have a picture of it somewhere and will post it. Dana Overall Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ------------------------------ Date: Wed, 13 May 1998 07:07:00 -0400 From: "Driessen, Marcel" Subject: KR: Traveling Newsletter Europe Dear KRNetters, I have received the Newsletters from Alessandro Pecarara yesterday. I will try to copy them in the next week. Which European KR-Builder wants to be next in Line ? Regards, Marcel Driessen ------------------------------ Date: Wed, 13 May 1998 08:14:03 -0400 From: Donald Reid Subject: Re: KR: Elevator/Rudder hinge material HAshraf wrote: > I need to find out where can one find the Al channels for elevator hinge. I > would like to use five hinges instead of three as specified in the plans. > Neither AS&S regular and Wicks catalog (online) catalog lists them. You don't really need the special channel for hinges. There are several options that work just as well. The one that I liked the best was to use either a "C" section or a square cut down to a "C" and make both the same. Offset the hinge pairs as shown in the detailed sketch below. __________________ ______ _______ ________________ I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I_________________I ______I I_________ I_______________I A 3/16" bolt through the middle, with thin washers between the hinge pairs. The offset is balanced so that the elevator (or rudder) will not displace to one side or the other. - -- Don Reid Bumpass, Va. mailto:donreid@erols.com KR2XL at http://www.erols.com/donreid/kr_page.htm Ultralights at http://www.erols.com/donreid/usua250.html ------------------------------ Date: Wed, 13 May 1998 08:22:41 -0500 From: "Mark Langford" Subject: KR: elevator spars ElevatorHeads, I haven't had a chance to detail Ken Cornelius' idea, but it does require welding 4130 steel, something most of us would be better off leaving to the experts. It is an elegant way of doing it though, and I'll try to get it out there for folks to see. I'm not sure if my internal counterweight would be the preferred way to counterbalance the elevators. I'm not entirely sure that it attacks the counterweight problem in the right way. While it does successfully statically balance the elevator, I wouldn't swear that it's as good as traditional methods when it comes to dynamically balancing it. I'd go with submerged tip weights were I to do it again. At least that way the balance is spread out a little better, and is closer to the hinges. The truth with my plane is that I probably don't need counterweights at all, since I've upped the resonant frequency of my elevator and horizontal stab substantially over the stocker by going to a thicker airfoil and the resulting taller (stiffer) spars on my elevators. And I have 5 hinges rather than three, and that won't hurt either. Mark Langford mailto:langford@hiwaay.net KR2S project at http://home.hiwaay.net/~langford/kr2s.html ------------------------------ Date: Wed, 13 May 1998 13:04:37 -0500 (CDT) From: Steven A Eberhart Subject: KR: The new airfoils Well, the clock is running down. Last word I had from Ashok is that we go into the wind tunnel Friday! Will try to get in touch with him today to confirm. The AS5045 wing is done and just needs final polishing and the AS5048 is complete ready for primer and paint ( a picture of the AS5045 model is at the top of http://www.newtech.com/nlf ). The end closeouts are curing right now (90 degrees outside so should be ready soon). Should get a couple coats of three part urethane primer on this afternoon. Finish sand tonight and spray the black epoxy yet tonight or early AM :-(. THe top coats of black epoxy need 24 hours to cure so if we go into the tunnel Friday it will be close. I will have to final sand and polish in the Hotel while at U of I. Why do all projects seem to come down to the wire no matter when they are started? I took last week and this week off from work so I copuld get the wings finished. I have probably 120 to 150 hours work in the two wings plus an additional 50 or 60 hours for the first NLF(1)0115 that got scrapped when the new airfoils were designed. The origional NLF gave up its John Roffey 4130 steel spars for the cause and they are now in the AS5048 wing. In total I have used 20 yards of UNI carbon fiber cloth and 10 yards of BID carbon fiber, two gallons of WEST Systems epoxy, a gallon of bondo, a whole bunch of blue foam (scrapped the equivalent of two wings of foam - OK I screwed up several times). These are the major items that come to mind. I have all of the receipts and will do what you are never supposed to do when I get time - total up the cost of the project and publish it. It just dawned on me today that for the money and time I have invested I could have built up my full size wings including the composite spars. Would I do it over again knowing what I do now? YOU BET I WOULD. I am selfish here - I get to use a new state of the art airfoil that wouldn't even exist if I hadn't gone through this. Even as sore as my arm muscles are right now it was still worth it. Can't wait to see pictures of Troy Petteways KR-2 and will probably have to come up with some excuse to get over his way when he is ready for the first test flight. Since my wife and I were never blessed with any children of our own I can only guess that this is how new expectant fathers must feel when the delivery date draws close. Keep tuned to this channel for news of the wind tunnel tests. Steve Eberhart ------------------------------ Date: Wed, 13 May 1998 19:43:01, -0500 From: YCGB97A@prodigy.com (MR JEAN R VERON) Subject: KR: Elevator/Rudder hinge material Haris Mike Ladigo mass balanced his elevator on his turbine KR-1. He fabricated a bent arm from sheet aluminum to clear the rear spar of the horiz. stab. . I cast the lead for him and think it was about 1 1/2 lb. The arm is about 9" long. If you are interested I'll take some measurments the next time I'm at the hangar. I forgot to mention that this is all inside the tail as you ask. Jean N4DD ------------------------------ Date: Wed, 13 May 1998 19:50:50, -0500 From: YCGB97A@prodigy.com (MR JEAN R VERON) Subject: Re: KR: Elevator/Rudder hinge material There is a better design in an old news letter. Keep the inside channel the same but use a 1/4" wider outer channel. Then install Oilite, Teflon or bronze hat bushings. The hat bushing is installed so that the flange is on the outside of the inner hinge and inside of the outer hinge. This will reduce wear on the hinge. Jean N4DD ------------------------------ Date: Wed, 13 May 1998 20:17:21 -0000 From: "Brian J Bland" Subject: KR:Hinge design This is a multi-part message in MIME format. - ------=_NextPart_000_001E_01BD7EAC.225DF6E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have made a quick sketch of a hinge that I thought about using while I = was at work today. The reason I thought of making them this way is = because I already have all the material to build them. I am thinking = about using 5 of them on the elevator and 3 on the rudder. I forgot to = add the bronze bushings in the drawing like is dicussed on Mark = Langfords page so when you look at the drawing remember that there will = be bushings also. I would appreciate if some of you would take a look = at the sketch and see what you think. It seem like they would work just = fine to me and it would save me some money since I have the material = already. The material I have is 7075-T6. I just want to see if anyone = forsees any problem using these type of hinges. Drawing is at: http://www.busprod.com/bbland/hinge.jpg Brian J. Bland Claremore, OK bbland@busprod.com http://www.busprod.com/bbland/kr2s.html - ------=_NextPart_000_001E_01BD7EAC.225DF6E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I have made a quick sketch of a = hinge that I=20 thought about using while I was at work today.  The reason I = thought of=20 making them this way is because I already have all the material to build = them.  I am thinking about using 5 of them on the elevator and 3 on = the=20 rudder.  I forgot to add the bronze bushings in the drawing like is = dicussed on Mark Langfords page so when you look at the drawing remember = that=20 there will be bushings also.  I would appreciate if some of you = would take=20 a look at the sketch and see what you think.  It seem like they = would work=20 just fine to me and it would save me some money since I have the = material=20 already.  The material I have is 7075-T6.  I just want to see = if=20 anyone forsees any problem using these type of hinges.
 
Drawing is at:
http://www.busprod.com/b= bland/hinge.jpg
 
Brian J. Bland
Claremore, = OK
 
bbland@busprod.com
http://www.busprod.com/b= bland/kr2s.html
- ------=_NextPart_000_001E_01BD7EAC.225DF6E0-- ------------------------------ Date: Wed, 20 May 1998 22:37:27 -0400 From: "Alan Moat" Subject: Re: KR: Elevator/Rudder hinge material Now Jean, you know better than to use the "O" word here. Just ask Mark. ;) Alan Moat taom@randomc.com - -----Original Message----- From: MR JEAN R VERON To: krnet-l@teleport.com Date: Wednesday, May 13, 1998 7:55 PM Subject: Re: KR: Elevator/Rudder hinge material >There is a better design in an old news letter. Keep the inside >channel the same but use a 1/4" wider outer channel. Then install >Oilite, Teflon or bronze hat bushings. The hat bushing is installed >so that the flange is on the outside of the inner hinge and inside of >the outer hinge. This will reduce wear on the hinge. >Jean >N4DD > ------------------------------ Date: Wed, 13 May 1998 21:09:41 -0500 From: rmccall Subject: Re: KR: Bill of Materials Dean, Check out the Wicks catalog. It has a full bill of materials needed for the KR2 and KR2S. Dean R. Collette, MD wrote: > Netters, > > Since I am on the "buy-as-you-build" plan I was wondering if anyone has ever > figured out what the bill of materials for the spars is. I am talking about > center and outboard sections for the main and aft spars, including webbing > and vertical members. > > I know that this is not a huge job to figure out, but, I'm feeling > particularly lazy at the moment. > > Dean > > drdean@execpc.com ------------------------------ Date: Wed, 13 May 1998 23:52:32 EDT From: HAshraf Subject: Re: KR: Elevator/Rudder hinge material Thanks all for the input on elevator hinges. Haris ------------------------------ Date: Wed, 13 May 1998 23:54:55 EDT From: HAshraf Subject: Re: KR: Elevator/Rudder hinge material In a message dated 98-05-13 19:46:14 EDT, you write: << Haris Mike Ladigo mass balanced his elevator on his turbine KR-1. He fabricated a bent arm from sheet aluminum to clear the rear spar of the horiz. stab. . I cast the lead for him and think it was about 1 1/2 lb. The arm is about 9" long. If you are interested I'll take some measurments the next time I'm at the hangar. I forgot to mention that this is all inside the tail as you ask. Jean N4DD >> At this time this information is enough. I was interested in in the total arm which I can calculate from these numbers. Haris ------------------------------ Date: Thu, 14 May 1998 06:21:10 -0500 From: "Mark Langford" Subject: KR: landing light angles? LightHeads, OK, I'm mounting these wonderful Ultimate Lazer Blazer Walmart landing lights in my stub wings, but in the interest of aerodynamics and good looks, I only want a small access cover in the bottom of the leading edge to change the halogens bulbs through. That doesn't leave enough room to really adjust the things, and I'd like to glue them in place so that I don't have to worry about them loosening up and getting wobbly on me. Anybody know what kind of angle landing lights are typically aimed at? I figure the left one I'll angle down a bit for taxiing, and the right one almost horizontal, but slightly down too. These are pencil beam things, not wide angle. Any night flyers or A&Ps have an opinion (or better yet, actual working knowlege) on this subject? Thanks, Mark Langford mailto:langford@hiwaay.net KR2S project at http://home.hiwaay.net/~langford ------------------------------ Date: Thu, 14 May 1998 07:54:51 -0400 From: Donald Reid Subject: Re: KR:Hinge design Brian J Bland wrote: > > I have made a quick sketch of a hinge that I thought about using while > I was at work today. . . . . > The material I have is 7075-T6. I just want to see > if anyone forsees any problem using these type of hinges. > > Drawing is at: > http://www.busprod.com/bbland/hinge.jpg They look good to me. I can't find my material reference manual, but I remember that 7075-T6 is stronger and more wear resistant than the 6061-T6. - -- Don Reid Bumpass, Va. mailto:donreid@erols.com KR2XL at http://www.erols.com/donreid/kr_page.htm Ultralights at http://www.erols.com/donreid/usua250.html ------------------------------ Date: Thu, 14 May 1998 05:19:22 -0700 From: "John Bouyea" Subject: Re: KR:Hinge design The drawings look fine. I think the reason that the design may have used the "C" channel was to provide a method of mounting the control arm without making additional holes in the spar. Hopefully your material is radiused in the corners between the surfaces; a supply of non-radiused angle stock caused the only recall of material I know of in the RV series of kits. Best of luck. John Bouyea johnbouyea@worldnet.att.net kr2s - building the spars Hillsboro, Oregon - ---------- From: Brian J Bland To: KRNet Subject: KR:Hinge design Date: Wednesday, May 13, 1998 1:17 PM I have made a quick sketch of a hinge ... Drawing is at: http://www.busprod.com/bbland/hinge.jpg Brian J. Bland Claremore, OK bbland@busprod.com http://www.busprod.com/bbland/kr2s.html ------------------------------ Date: Thu, 14 May 1998 08:19:25 -0500 (CDT) From: Steven A Eberhart Subject: KR: Re: new airfoils On Thu, 14 May 1998, Richard Parker wrote: > > >Steve Eberhart wrote: > > >It just dawned on me today that for the money and time I have invested > >I could have built up my full size wings including the composite spars. > >Would I do it over again knowing what I do now? YOU BET I WOULD. I am > > >selfish here - I get to use a new state of the art airfoil that wouldn't > >even exist if I hadn't gone through this. Even as sore as my arm muscles > >are right now it was still worth it. > > > Any details on the composite spars? I would like to go that way on my > -2S and have looked at the Pulsar 3 spars and a few others. > It looks like spar research and development is the next project for the Area 51 Skunk Works now that we have three new state of the art airfoils. In fact Mark Langford already has $200 that has been contributed to the spar R&D project. He is planning on building a stock spruce spar and test it to destruction. Bruce Griffing is investigating a composite spar using spruce and carbon fiber. I would like to see R&D on a Europa style spar using a foam core S-Glass spar caps and possibly filament wound shear webs. Richard Mole is interrested in the greater strength or reduced weight that a spar for the new 18% root airfoil makes possible due to the greater depth available. If we can keep this R&D effort going no telling what kind of advancements can come out of our efforts. It is amaizing but the first KR-2 with the new wing will fly next month! With this kind of results we can't stop with just the airfoils. THere is too great a brain trust here for us not to take advantage of all of the expertise of the participants. Steve ------------------------------ Date: Thu, 14 May 1998 10:17:07 -0700 From: rdewees@juno.com Subject: KR: Re: Deihl landing gear needed Kr netters.. I am finally at the pont of moving my KR2 projects from the single car garage to my newly expanded workshop area and get to building! BOth are on original retract gear and my first priority will be to convert to tri gear and remove the original retract conventional gear. I am looking for Deihl main gear and nose wheel, tires and possible hydraulics for main gear. Anyone wanting to sell these components please contact me directly at rdewees@juno.com to save bandwidth. Used but servicable condition is ok. I am also planing on installing a Jabiru 80 hp motor in the KR2 and wonder if anyone has any experience with this motor or installation. Your help appreciated ROn DeWees 404 876-3481 Atlanta,GA _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866] ------------------------------ Date: Thu, 14 May 1998 09:29:40 EDT From: Kr2dream Subject: KR: radio installation I was at Waukegan Aviation earlier this week looking at the prices of transponders and was cautioned that ALL radio installations including com and transponders MUST be certified by an approved installation facility and FAA forms submitted even if the installation is in an experimental aircraft. They noted that, of course, there is a charge for the testing and processing the paperwork. It sounds like a ploy to get additional money for something I have never heard of. Anyone else have any info on this? Bob Lasecki Chicago and back to building ------------------------------ Date: Thu, 14 May 1998 14:37:18 EDT From: KR2 616TJ Subject: Re: KR: radio installation In a message dated 98-05-14 10:56:22 EDT, you write: << I was at Waukegan Aviation earlier this week looking at the prices of transponders and was cautioned that ALL radio installations including com and transponders MUST be certified by an approved installation facility and FAA forms submitted even if the installation is in an experimental aircraft. They noted that, of course, there is a charge for the testing and processing the paperwork. It sounds like a ploy to get additional money for something I have never heard of. Anyone else have any info on this? Bob Lasecki >> Bob, give them the time of day but let that be it. I may be wrong (I hope someone doesn't prove me wrong here), but an installation does not have to be certified. Dana Overall Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ------------------------------ Date: Wed, 13 May 1998 21:38:21 -0500 From: rmccall Subject: Re: KR: Re: Elevator Cable Routing KR2S Marty, Got any pictures of the push-pull tube arrangement? I would like ot do the same. Rich McCall 1518 Holly Lane Junction City, KS 66441 Martin Mulvey wrote: > Hi Austin, > > I used a push-pull tube from the stick. I did not want to use cable for > about the same reason. > > BRGDS Marty > -----Original Message----- > From: Austin Clark > To: krnet-l@teleport.com > Date: 29 April, 1998 16:28 > Subject: KR: Elevator Cable Routing KR2S > > >I've hit a snag while routing the upper elevator control cable. The cable > >rubs the cross member at station M on the KR2S. I have tried routing the > >cable above and below the cross member and adjusting the position of the > >upper elevator guide pully; lucky for me, I have not mounted it permanent > >yet. What have others done? This does not appear to be a problem on the > >KR2, only on the S. > > > > > >Austin Clark > >Pascagoula, MS > >itac@datasync.com > >http://www.datasync.com/~itac/ ------------------------------ Date: Thu, 14 May 1998 15:58:43 -0600 From: Adrian Carter Subject: Re: KR: radio installation KR2 616TJ wrote: > > In a message dated 98-05-14 10:56:22 EDT, you write: > > << I was at Waukegan Aviation earlier this week looking at the prices of > transponders and was cautioned that ALL radio installations including com and > transponders MUST be certified by an approved installation facility and FAA > forms submitted even if the installation is in an experimental aircraft. > They > noted that, of course, there is a charge for the testing and processing the > paperwork. It sounds like a ploy to get additional money for something I > have > never heard of. Anyone else have any info on this? > > Bob Lasecki >> > > Bob, give them the time of day but let that be it. I may be wrong (I hope > someone doesn't prove me wrong here), but an installation does not have to be > certified. > > Dana Overall > Richmond, KY > mailto:kr2616tj@aol.com > http://www.geocities.com/CapeCanaveral/Hangar/7085/ Hi, Maybe this may be not much interest in the US but, just to mention what the situation is up here in Canada which in many instances is the same in both countries. For the transponder/encoding and the elt. On initial installation it has to be checked in a certified shop so the peramiters are met, also make sure that you get the spec sheet with the units. The spec sheets written by the tech to make sure that all meets the requirements. For instance if the encoding altimeter is out of limits, this would not be very good. Once this initial check is made, your on your own. You do the installation, you built the a/c and who knows better than you how you want it installed. Instead of $60.00-$80.00/hr to one that does not know anything about your aircraft. A certified tech is only required for factory certified spam cans. That's our situation up here and I would imagine it is very similar in the US. Up here we use the term "homebuilts" and not experimental like you guys use there. Hope some of this helps - Happy Flying All!!!!!!!!!! - -- Adrian VE6AFY Mailto:cartera@cuug.ab.ca http://www.cuug.ab.ca/~cartera ------------------------------ End of krnet-l-digest V2 #80 ****************************