From: owner-krnet-l-digest@teleport.com[SMTP:owner-krnet-l-digest@teleport.com] Sent: Friday, July 17, 1998 7:58 AM To: krnet-l-digest@teleport.com Subject: krnet-l-digest V2 #122 krnet-l-digest Friday, July 17 1998 Volume 02 : Number 122 ---------------------------------------------------------------------- Date: Wed, 15 Jul 1998 21:01:36 -0400 From: "cary" Subject: KR: Duh! What is the old saying about trusting used car salesmen and strangers with unsolicited gifts? Add to that "Engine manufacturers who say that the fully tested the overhaules engine before shipping it back, and pilots who believe them. The pilot ends up broke and/or broken when he tries to go flying. Remember my question about engine vibration when checking the mags? Well..... I went to the field tonight armed with tools and intentions to clean up this problem. It turned out easier than I thought. I started the KR up, and went to left mag. The usual protestations from the engine reassured me that the problem was still there. After a few minutes, I shut the beast down and, armed with a grease pen I accosted the exhaust pipes. One side immediately went white. The other remained cool and black. In fact, too cool. After waiting for all to cool off a bit, I repeated the ballet with the right mag. Now the other side went white and the side that was hot last time would not have melt butter. Curious: both bottles on the right side are cool, not just one bottle. Could there be a bad mag? If you had an opportunity to look over my web page at www.storm.ca/~cary , you would have seen how neatly Revmaster had positioned the mag cables. Too good to be true. It wasn't! Top left mag cables and bottom left mag cables went to the left bottles. Top and bottom right to the right bottles. Duh! Duh to me too. At least I'm alive to tell about it. Never trust. Always check it all out. - - Cary - ------------------------------ Date: Wed, 15 Jul 1998 21:46:54 EDT From: HAshraf@aol.com Subject: KR: Broken control horns <> Thanks. I'll do some research. Good thing is that the control horn is easilly removable. I can replace it with a steel one aferwords if I get too paranoid. Plans show a bolt being used through the attach hole which can cause bending loads on th ehorn. I have seen (both on MM and ML planes) a shackel which is probably a better way to go. Haris ------------------------------ Date: Wed, 15 Jul 1998 19:12:10 -0700 From: Micheal Mims Subject: Re: KR: Broken control horns At 09:46 PM 7/15/98 EDT, you wrote: >Plans show a bolt being used through the attach hole which can cause bending loads on th ehorn. I have seen (both on MM and ML planes) a shackle which is probably a better way to go. > >Haris > I didn't feel good with the bolt and cable eye setup, like you said it just looks like it would apply too much side load. I wanted a nice straight pull. I have used the cable shackles on every horn and or lever. They cost a little more but I think they are worth it. zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims SP290,.. Filling and sanding now! mailto:mikemims@pacbell.net http://www.geocities.com/CapeCanaveral/Hangar/4136/ Irvine Ca Fax 949.856.9417 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------------------------------ Date: Wed, 15 Jul 1998 22:16:09 -0400 (EDT) From: jeroffey@tir.com (jeroffey) Subject: KR: KR2 For Sale Dave Batton, formerly of Redford MI. and now in the Orlando area has left his KR2 project in my shop while he settles into his new house in Florida. He want's to sell his project rather than incure the expence of moving it. I estimate the project at 45% complete with all the wood work done and on TD gear. Tail surfaces are foamed and horizontal stab and elevator glassed. Driver side stub wing foamed and glassed on top surface. All RR refab parts included, upper & lower cowl, forward deck, canopy frame & canopy, turttle deck and VW motor mount, control stick, rudder bars and pedals. Diel parts include gear legs & mounts,gear fairings, VW mag conversion and back plate. A supply of materials to finish the glassing. All control wires and fittings are included. Wheels tires and brakes are mounted, two master cylinders,and polyflow tubing included. Dave has indicated that he has $6800. spent on materials and will sacrifice all for $2500. Email me direct or call Dave at 407-327-1040 or 561-340-7843 ------------------------------ Date: Wed, 15 Jul 1998 23:10:38 EDT From: HAshraf@aol.com Subject: KR: More Gyro info Threre is a very small and nifty piezo (no moving parts) gyro available from: Horizon Hobby Distributers Fieldstone Road Champaign, IL 61821 It is called PZ-200 and weighs less than an ounce. See page Model Aviation July 98 issue page 104. Haris Ashraf ------------------------------ Date: Wed, 15 Jul 98 10:19:51 CST From: "dboll" Subject: KR: POSA CARB ???? I have a Posa on my Revmaster and with a no. 5 needle and 6 truns out it = runs rich at low rpms and lean at hi rpms . I have a No. 1-2-4 and the = 5 needles I'm missing the no. 3 . Thanks in advance for any help. Don ------------------------------ Date: Thu, 16 Jul 1998 02:10:39 EDT From: miketnyc@juno.com (Michael Taglieri) Subject: Re: KR: Vertex Magnetos >KRNetters, >One option I think is overlooked for ignition on auto conversions is >the >Vertex magnetos. These units are made for racecar applications like >circle track racing, and Vertex makes them for 2, 4, 6, or 8 cylinder >operations. They would probably fit on the VW's that are turned >around >with the distributor hole at the rear, and also on Subaru's. >From looking at the pictures of them, I assume their bulk would make them unusable on a VW if you DON'T turn it around? Is there some way to cowl it without making the plane look like it has the mumps? Mike Taglieri - ------------------------------------------------ 'Mine goes up to 11' - ------------------------------------------------ _____________________________________________________________________ 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, 16 Jul 1998 02:10:39 EDT From: miketnyc@juno.com (Michael Taglieri) Subject: KR: Re: Control Stick cable tension experiments >About a year ago, I looked up all of the KR type accidents from the >NTSB >and passed them out to several people since I did not have a web site >at >the time. I can't find my copy right now, but there was one that >described an accident in which a control horn broke, perhaps at the >time >of a normal touchdown. If I remember correctly, the A/C lost control >while landing and abruptly pitched nose up, crashed, and burned. The >bottom control horn bolt hole was found broken out of the horn. If I >had to guess, I would say that it was either poor workmanship, too >high >a cable tension, or a combination. I remember reading about this in the Newsletter, and it couldn't say for certain whether the broken control horn was the CAUSE of the crash or the RESULT of the crash when the pilot's body slammed against the stick. Did the NTSB finding ultimately figure this out? Mike Taglieri - ------------------------------------------------ 'Mine goes up to 11' - ------------------------------------------------ _____________________________________________________________________ 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, 16 Jul 1998 02:10:39 EDT From: miketnyc@juno.com (Michael Taglieri) Subject: KR: Re: Control Stick cable tension experiments ><<<<the >same may mask the problem a bit but will not solve it, because that >has >nothing to do with the real cause. Instead, if you have binding at >both ends >of travel when the center is right (or binding in the center when both >ends >are right), the problem is because the pivot point on the stick is not >in-line with the attachment holes. If you have binding only on one >side and >not the other, it's caused by a stick (or bellcrank) with one >attachment >hole a different distance from the pivot than the other hole is. >>>>>> > >All the holes in my first setup were inline and it still bound up, so >I have >to say again, not true! :o) All I can say is that these results you found disagree with what I saw with my own eyes. I don't remember where you said your binding occurred, but I was able to get binding just about anywhere by misaligning the holes. I guess I should make clear that the connecting strings in my tests were floating in free space, and I was talking only about binding from tension changes in the system. Your binding may have nothing to do with that, but may arise from rubbing somewhere. Mike Taglieri - ------------------------------------------------ 'Mine goes up to 11' - ------------------------------------------------ _____________________________________________________________________ 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, 16 Jul 1998 06:18:04 -0700 From: Tom Crawford Subject: Re: KR: Control Stick Micheal Mims wrote: > > KR2616TJ@aol.com wrote: > > Bobby, in all this discussion on tension it is the one you mentioned that initially concerned me. After setting all your cable tensions correctly and neutralizing all your control surfaces, everytime you move the stick fore and aft out of the neutral position, you "pull" on both of the aileron cables at the same time. > > > > > Did you guys use fairleads through the fuselage side or something? I > realized there needed to be a pretty fair amount of movement so I used a > spade bit and drilled 1 inch holes for my aileron cables. When you move > the stick back and forth they are allowed to move around unrestricted > from where they attach to the stick all the way out to the pulley by the > WAFs. Seems to work OK, also could you guys be setting your cables up > too tight? > > -- > zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz > Micheal Mims > SP290,.. Filling and sanding now! > mailto:mikemims@pacbell.net > http://www.geocities.com/CapeCanaveral/Hangar/4136/ > Irvine Ca > Fax 949.856.9417 > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ I used small fairleads on the inside of the fuselage skin. Tom Crawford tomc@afn.org Gainesville, FL N262TC ------------------------------ Date: Thu, 16 Jul 1998 06:38:46 -0700 From: Tom Crawford Subject: Re: KR: Vertex Magnetos Tom Andersen wrote: > > KRNetters, > One option I think is overlooked for ignition on auto conversions is the > Vertex magnetos. These units are made for racecar applications like > circle track racing, and Vertex makes them for 2, 4, 6, or 8 cylinder > operations. They would probably fit on the VW's that are turned around > with the distributor hole at the rear, and also on Subaru's. They even > make one for turbo'd engines, with an external coil, which has a very > nice finned heat sink on the coil. > What's attractive is the drop-in, self-contained simplicity, and no > reliance on external wiring or power supply such as alternator or > battery. This is typically not available without going to an expensive > Slick mag. > The base is now a one-piece machined aluminum part, better than the old > casting. Vertex states they can make one for any engine. > A lot of VW's have used these for years because they were readily > available to the VW dune buggy community. Anyone have any experience at > all with these units? > -Tom Tom, These are actually more expensive than the Slick Mag. I beleive they are heavier also, although you dont need an accessory case to run it. Tom Crawford tomc@afn.org Gainesville, FL N262TC ------------------------------ Date: Thu, 16 Jul 1998 08:09:05 EDT From: KR2616TJ@aol.com Subject: Re: KR: shackles In a message dated 98-07-15 22:13:28 EDT, you write: << I didn't feel good with the bolt and cable eye setup, like you said it just looks like it would apply too much side load. I wanted a nice straight pull. I have used the cable shackles on every horn and or lever. They cost a little more but I think they are worth it. >> To save space I don't like to simply reinforce anyone else's opinion but on this I will, my opinion guys (watch out here it comes) is use shackles..........they are definitely worth the extra money. Dana Overall Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ------------------------------ Date: Thu, 16 Jul 1998 07:40:09 -0500 From: Ed Janssen Subject: Re: KR: Vertex Magnetos Tom, Yup, lots of VW flyers have used them - probably most noteably the Volksplanes and Teenie designs - but they've been used on a few early KRs as well. Ed Janssen KR.sAt 04:15 PM 7/15/98 -0400, you wrote: >KRNetters, >One option I think is overlooked for ignition on auto conversions is the >Vertex magnetos. These units are made for racecar applications like >circle track racing, and Vertex makes them for 2, 4, 6, or 8 cylinder >operations. They would probably fit on the VW's that are turned around ------------------------------ Date: Thu, 16 Jul 1998 08:57:00 -0400 From: Donald Reid Subject: Re: KR: Broken control horns HAshraf@aol.com wrote: > > < f I remember correctly, the A/C lost control > while landing and abruptly pitched nose up, crashed, and burned. The > bottom control horn bolt hole was found broken out of the horn. If I > had to guess, I would say that it was either poor workmanship, too high > a cable tension, or a combination. > >> > > Plans show a bolt being used through the attach hole which can cause bending > loads on th ehorn. I have seen (both on MM and ML planes) a shackel which is > probably a better way to go. I don't even remember that portion of the plans, probably since I can not believe that anyone would install the controls that way. I strongly believe that the only proper way to connect cables to a control horn is with a shackle or the equivalent. - -- 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, 16 Jul 1998 06:53:49 -0600 From: Ron Lee Subject: KR: Newsgroup KR2 for sale Hi, I have a partialy comepleted KR-2 for sale. It's about 25% done and I have all the wood to finish it and the plans. It was my fathers but I don't think he will finish it as he died of a heart attack and due to my health, I'll not be able to finish it or fly again myself. I'm in Northern CA. about an hour and a half from Sacramento. I'm asking $250 for the plane and plans. Email me as I only read the NGs about once a week or less. Thanks, Dale dalet@thegrid.net This posting a public service.I have no affiliation with Dale Ron Lee ------------------------------ Date: Thu, 16 Jul 1998 07:09:02 -0700 From: Micheal Mims Subject: Re: KR: Vertex Magnetos At 07:40 AM 7/16/98 -0500, you wrote: >Tom, > >Yup, lots of VW flyers have used them - probably most noteably the >Volksplanes and Teenie designs - but they've been used on a few early KRs >as well. > Also I believe I have seen them on the Dawn Patrol WW1 replicas. I looked into one to run on a inline 4 cylinder VW and yes they are more expensive than the slick and they are heavier. But in the case of the inline VW it slid right into the distributor drive hole. zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims SP290,.. Tearing apart the engine now! mailto:mikemims@pacbell.net http://www.geocities.com/CapeCanaveral/Hangar/4136/ Irvine Ca Fax 949.856.9417 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------------------------------ Date: Thu, 16 Jul 1998 07:15:37 -0700 From: Micheal Mims Subject: Re: KR: Newsgroup KR2 for sale At 06:53 AM 7/16/98 -0600, you wrote: >Hi, > > I have a partialy comepleted KR-2 for sale. It's about 25% done and >I have all the wood to finish it and the plans. It was my fathers but >I don't think he will finish it as he died of a heart attack and due >to my health, I'll not be able to finish it or fly again myself. I'm >in Northern CA. about an hour and a half from Sacramento. I'm asking >$250 for the plane and plans. Email me as I only read the NGs about >once a week or less. Thanks, > Thats a damn cheep spruce kit! Randy? George? Yall see that? zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims SP290,.. Tearing apart the engine now! mailto:mikemims@pacbell.net http://www.geocities.com/CapeCanaveral/Hangar/4136/ Irvine Ca Fax 949.856.9417 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------------------------------ Date: Thu, 16 Jul 1998 09:45:01 -0500 (CDT) From: Steven A Eberhart Subject: Re: KR: Newsgroup KR2 for sale On Thu, 16 Jul 1998, Micheal Mims wrote: > At 06:53 AM 7/16/98 -0600, you wrote: > >Hi, > > > > I have a partialy comepleted KR-2 for sale. It's about 25% done and > >I have all the wood to finish it and the plans. It was my fathers but > >I don't think he will finish it as he died of a heart attack and due > >to my health, I'll not be able to finish it or fly again myself. I'm > >in Northern CA. about an hour and a half from Sacramento. I'm asking > >$250 for the plane and plans. Email me as I only read the NGs about > >once a week or less. Thanks, > > > > Thats a damn cheep spruce kit! Randy? George? Yall see that? Anyone coming to the East Coast Gathering next weekend have room in their baggage for this? Bring it along and I will reimburse you for your excess baggage charges --- on second thought this probably isn't a very good idea :-) Steve Eberhart - ------------------------------------- http://www.newtech.com/nlf One test is worth a thousand expert opinions but a thousand opinions are easier to get. --Plagurized from an unknown author Once you have the Coroners report, why keep kicking the poor dead horse --Steve Eberhart, 1998 When once you have tasted flight you will always walk with your eyes turned skyward, for there you have been and there you will always be. --Leonardo da Vinci ------------------------------ Date: Thu, 16 Jul 1998 15:20:33 -0400 From: "Bob Vermeulen" Subject: Re: KR: Video of gathering - ---------- > > << If he is going to be there please could > he do more on the talks given by everyone (demonstrations).We need his > excellent work at the gatherings as this helps us that live too far to attend > such gatherings. > Regards > -- > Rob Matthews >> > > Rob, I talked with Video Bob at Sun & Fun and he assured me he was still > working on the forum video, haven't heard anything else though. > > Dana Overall > Richmond, KY Hey Gang, Thought I had better check in on this thread. Yes, I'll be at the Gathering with a couple of camera operators and all the necessary equipment. We will definitely be shooting all of the festivities. We try to give you a good idea of what it's like, but you really need to be there. If you can at all make it, by all means don't miss the Gathering. The first of The KR Builder Forum series is almost completed (should be done this weekend). It will have the forums on woodworking, antennas, composite construction, and finishing. Large segments of this week have been spent looking at Mark Langford and Mike Mims doing their magic with foam and Aeropoxy. ( sometimes my job can be unpleasant, but someone's got to do it) Sorry Mark and Mike :) Anyway, I will be announcing the availability of the Forum tapes shortly. Thanks guys for your interest. Boat and Spars All Completed, Video Bob ------------------------------ Date: Thu, 16 Jul 1998 13:42:43 -0700 From: Micheal Mims Subject: KR: Man its HOT! Well sports fans I guess you could say we are having a slight heat wave out here in Southern California this week. They are forecasting temps in the 100 to 110 range for some areas. I was thinking about pushing the project out into the sun with a black tarp over it for some post curing action. Has anyone done this and how long did you leave it in the sun? I plan to use a thermometer to try and keep it under 180 degrees. Any thoughts? My biggest concern is the plexi windshield. That could be too hot then again I may not be able to get it that hot anyway. - -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims SP290,.. Tearing aport the engine now! mailto:mikemims@pacbell.net http://www.geocities.com/CapeCanaveral/Hangar/4136/ Irvine Ca Fax 949.856.9417 ***Legal Disclaimer***: All information, included in any of my aircraft related correspondence, is strictly food for thought and is in no way is intended to imply that they are anything more than ideas requiring additional qualified engineering analysis. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------------------------------ Date: Thu, 16 Jul 1998 15:52:18 -0500 (CDT) From: Steven A Eberhart Subject: Re: KR: Man its HOT! On Thu, 16 Jul 1998, Micheal Mims wrote: > Well sports fans I guess you could say we are having a slight heat wave > out here in Southern California this week. They are forecasting temps > in the 100 to 110 range for some areas. I was thinking about pushing > the project out into the sun with a black tarp over it for some post > curing action. Has anyone done this and how long did you leave it in > the sun? I plan to use a thermometer to try and keep it under 180 > degrees. Any thoughts? My biggest concern is the plexi windshield. > That could be too hot then again I may not be able to get it that hot > anyway. > I don't know if this applies or not but when I was finishing the wind tunnel models I had the AS5045 wing laying on a work mate while I was polishing the surface finish. Since I was using wet or dry sandpaper wet I pulled the work mate outside of the garage and into the sun. I was merrily sanding away. Quit for twenty minutes to answer the phone and then when I got back to sanding I noticed that there were two very distinct ridges being sanded off - just where the ribs were located. THe heat had expanded the foam sufficiently to bulge the .070" thick carbon fiber skin but where the skin was bonded to the ribs it didn't expand nearly as much. The wings are painted black and it only took twenty minutes to deform them. When everything cooled off (the next day) all was back to normal except the ridges that were sanded off were then valleys sanded into the finish. Had to go back and fill the valleys and re-finish. Black things get hot quick in the sun! Steve - ------------------------------------- http://www.newtech.com/nlf One test is worth a thousand expert opinions but a thousand opinions are easier to get. --Plagurized from an unknown author Once you have the Coroners report, why keep kicking the poor dead horse --Steve Eberhart, 1998 When once you have tasted flight you will always walk with your eyes turned skyward, for there you have been and there you will always be. --Leonardo da Vinci Legal Disclamer: All information, included in any of my aircraft related correspondence, is strictly food for thought and is in no way intended to imply that they are anything more than ideas requiring additional qualified engineering analysis. ------------------------------ Date: Thu, 16 Jul 1998 16:52:42 EDT From: KR2616TJ@aol.com Subject: KR: Tailwheel. Got my tailwheel in today from AS&S, L-691................this thing is slick!!! Got to kinda bugger (sp) the tail end up a bit installing it so late but in this case......better late than never. Sorry for the space, but my.....tail.....end is off the ground now. Dana Overall Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ------------------------------ Date: Thu, 16 Jul 1998 14:03:43 -0700 From: Micheal Mims Subject: Re: KR: Tailwheel. KR2616TJ@aol.com wrote: > > Got my tailwheel in today from AS&S, L-691................this thing is slick!!! Glad you like it! How did you mount the spring? I was planning to take a few shots of mine to post on the web. I used one large bolt in the standard bolt hole in the spring and then built a saddle type mount out of aluminum that will keep the side to side movement under control. I didn't really want to drill another hole in the spring but I guess you could if you had too. - -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims SP290,.. Tearing aport the engine now! mailto:mikemims@pacbell.net http://www.geocities.com/CapeCanaveral/Hangar/4136/ Irvine Ca Fax 949.856.9417 ***Legal Disclaimer***: All information, included in any of my aircraft related correspondence, is strictly food for thought and is in no way is intended to imply that they are anything more than ideas requiring additional qualified engineering analysis. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------------------------------ Date: Thu, 16 Jul 1998 17:32:32 -0600 From: jscott.pilot@juno.com (Jeffrey E Scott) Subject: Re: KR: Tailwheel. I wouldn't recommend drilling the spring in the middle as that will create a weak area. I also made a saddle with a steel plate inside the fuselage, two aluminum spacers over top of the bolts and an aluminum saddle. I used some rubber pieces from an old aircraft tire stuck between the spring and the fuselage as well as the saddle and the spring for some cushioning. It has held up very well, but I'll give it a good looking over during the annual in a couple of weeks. Jeff - ------- Jeff Scott - Los Alamos, NM jscott.pilot@juno.com See N1213W construction and first flight at http://home.hiwaay.net~langford/kjefs.html & http: //www.thuntek.net/~jeb/krpage.htm On Thu, 16 Jul 1998 14:03:43 -0700 Micheal Mims writes: >KR2616TJ@aol.com wrote: >> >> Got my tailwheel in today from AS&S, L-691................this thing >is slick!!! > > >Glad you like it! How did you mount the spring? I was planning to >take >a few shots of mine to post on the web. I used one large bolt in the >standard bolt hole in the spring and then built a saddle type mount >out >of aluminum that will keep the side to side movement under control. I >didn't really want to drill another hole in the spring but I guess you >could if you had too. > > >-- >zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz >Micheal Mims >SP290,.. Tearing aport the engine now! >mailto:mikemims@pacbell.net >http://www.geocities.com/CapeCanaveral/Hangar/4136/ >Irvine Ca >Fax 949.856.9417 >***Legal Disclaimer***: All information, included in any of >my aircraft related correspondence, is strictly food for >thought and is in no way is intended to imply that they are >anything more than ideas requiring additional qualified >engineering analysis. >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > _____________________________________________________________________ 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, 16 Jul 1998 17:35:21 -0600 From: jscott.pilot@juno.com (Jeffrey E Scott) Subject: Re: KR: Man its HOT! Before I acquired the project that eventually became an airplane, it was parked out in the hot south Texas sun with the tail feathers painted primer gray. The foam in the tail grew enough to substantially deform the horizontal stab and elevator causing some major filling and rebuilding on my part after aquiring the project. Jeff - ------- Jeff Scott - Los Alamos, NM jscott.pilot@juno.com See N1213W construction and first flight at http://home.hiwaay.net~langford/kjefs.html & http: //www.thuntek.net/~jeb/krpage.htm On Thu, 16 Jul 1998 15:52:18 -0500 (CDT) Steven A Eberhart writes: >On Thu, 16 Jul 1998, Micheal Mims wrote: > >> Well sports fans I guess you could say we are having a slight heat >wave >> out here in Southern California this week. They are forecasting >temps >> in the 100 to 110 range for some areas. I was thinking about >pushing >> the project out into the sun with a black tarp over it for some post >> curing action. Has anyone done this and how long did you leave it >in >> the sun? I plan to use a thermometer to try and keep it under 180 >> degrees. Any thoughts? My biggest concern is the plexi windshield. > >> That could be too hot then again I may not be able to get it that >hot >> anyway. >> > >I don't know if this applies or not but when I was finishing the wind >tunnel models I had the AS5045 wing laying on a work mate while I was > >polishing the surface finish. Since I was using wet or dry sandpaper >wet >I pulled the work mate outside of the garage and into the sun. I was >merrily sanding away. Quit for twenty minutes to answer the phone and > >then when I got back to sanding I noticed that there were two very >distinct ridges being sanded off - just where the ribs were located. >THe >heat had expanded the foam sufficiently to bulge the .070" thick >carbon >fiber skin but where the skin was bonded to the ribs it didn't expand >nearly as much. The wings are painted black and it only took twenty >minutes to deform them. When everything cooled off (the next day) all > >was back to normal except the ridges that were sanded off were then >valleys sanded into the finish. Had to go back and fill the valleys >and >re-finish. Black things get hot quick in the sun! > >Steve > >------------------------------------- >http://www.newtech.com/nlf > >One test is worth a thousand expert opinions but a thousand opinions >are >easier to get. > --Plagurized from an unknown author > >Once you have the Coroners report, why keep kicking the poor dead >horse > --Steve Eberhart, 1998 > >When once you have tasted flight you will always walk with your eyes >turned skyward, for there you have been and there you will always be. > --Leonardo da Vinci > >Legal Disclamer: All information, included in any of my aircraft >related >correspondence, is strictly food for thought and is in no way intended >to imply that they are anything more than ideas requiring additional >qualified engineering analysis. > > _____________________________________________________________________ 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, 16 Jul 1998 17:39:38 -0700 From: "John F. Esch" Subject: Re: KR: 262TC/KRNet web page Oscar What is your home mailing address? I have something to mail to ya. my email jesch@cyberis.net John Esch Salem, OR Oscar Zuniga wrote: > I just saw the photos of Tom's KR on the KRNet.org web page; guess > Ross > has been doing some updating. Go see them if you haven't yet. > > Now I know what the "-TC" tail numbers stand for... Totally Cool! > Nice, > clean bird. I guess there's a lot to be said for building "to plans" > (although I'm assuming there are some tweaks here and there, no?) and > > Jeff's plane still holds an edge over the others in my eyes, just cuz > the wheel's back where it's supposed to be. > > Oscar Zuniga > Medford, Oregon > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com ------------------------------ Date: Thu, 16 Jul 1998 21:17:31 EDT From: KR2616TJ@aol.com Subject: Re: KR: Tailwheel. In a message dated 98-07-16 17:01:01 EDT, you write: << Glad you like it! How did you mount the spring? I was planning to take a few shots of mine to post on the web. I used one large bolt in the standard bolt hole in the spring and then built a saddle type mount out of aluminum that will keep the side to side movement under control. I didn't really want to drill another hole in the spring but I guess you could if you had too. >> My thoughts were to use the bolt hole already in the end of the spring and do something like Jeff said, let two bolts coming out of a backplate in the fush. control the side to side torque. Jeff, being that this spring is somewhat stout, I had initially thought that another hole drilled into the spring back near the end of the plane might work. My thought on this was that any springing action would occur from the bend rearward and that the portion attached flat on the bottom of the plane would not incur any real pressure anyway. Heck, this spring is stout enough I believe the bottom of the plane my decide to depart it's surroundings before the spring broke. Once again I believe this is the real deal, locking tailwheel with full castering breakaway. Heck, it's looking more like a real plane everyday. Dana Overall Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ------------------------------ Date: Fri, 17 Jul 1998 00:17:05 EDT From: miketnyc@juno.com (Michael Taglieri) Subject: Re: KR: Landing gear from automotive leaf spring steel > I am attempting to design and build a landing gear from a automotive > leaf spring. I think it will be a low cost light weight alternative to > the big $$ options out there. > > A piece of steel 5/16" x 2.5" x 21" is set near vertically and attached > to the main spar at the caps. The axel consists of a 3/4" grade 8 bolt > locked on to the leaf with a nut on both sides of the leaf. > __________________________________________________________________________ > |attach attach 3/4" axel > bolt | > |o o o o > O | > |_________________________________________________________________________| > > The distance from the leaf to the center of the tire is about 3" which > creates a 3" lever arm that bends the leaf. If a camber angle is set > between 7.5 to 15 degrees so that the attach is centered nearly over the > center of the tire, I calculate this set up will easily carry a 4 G > landing at gross weight and is several pounds lighter than the design > given in the manual. I just read this post from last November (I'm a bit behind on my list-reading. . . .) and I wondered how it turned out. The original question being asked here was how to drill holes in this kind of steel and there were several useful answers, so I'm assuming whoever was making the gear is done by now, or at least fairly well along. As far as I know, certified plane always use steel for the gear legs, so I'm assuming it is more rugged if done right. I was wondering if this steel gear turned out to be reasonable in weight light compared to the Diehl fixed gear, and whether it was attractive-looking on the plane. I'm also wondering what automotive leaf-spring turned out to be right for the job. Mike Taglieri - ------------------------------------------------ 'Mine goes up to 11' - ------------------------------------------------ _____________________________________________________________________ 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: Fri, 17 Jul 1998 01:48:41 EDT From: miketnyc@juno.com (Michael Taglieri) Subject: Re: KR: Vertex Magnetos >>Yup, lots of VW flyers have used them - probably most noteably the >>Volksplanes and Teenie designs - but they've been used on a few early >KRs >>as well. >> > >Also I believe I have seen them on the Dawn Patrol WW1 replicas. I >looked >into one to run on a inline 4 cylinder VW and yes they are more >expensive >than the slick and they are heavier. But in the case of the inline VW >it >slid right into the distributor drive hole. I guess using a Vertex in front and a Slick in back would be a good way to get traditional spamcan-style dual magneto ignition without having to make any one-off fabrications. How this unit could fit under a KR cowling is still a mystery, however. Is anyone here using it? Mike Taglieri - ------------------------------------------------ 'Mine goes up to 11' - ------------------------------------------------ _____________________________________________________________________ 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: Fri, 17 Jul 1998 06:54:46 -0500 From: Ed Janssen Subject: Re: KR: Vertex Magnetos Mike, No mystery - Two methods I've seen are -You either build in a big ol' ugly lookin' bump in the cowling over the Verrtex or cut a hole and let it hang out in the breeze. :0) Ed Janssen >I guess using a Vertex in front and a Slick in back would be a good way >to get traditional spamcan-style dual magneto ignition without having to >make any one-off fabrications. How this unit could fit under a KR >cowling is still a mystery, however. Is anyone here using it? > >Mike Taglieri ------------------------------ Date: Fri, 17 Jul 1998 05:40:51 PDT From: "Richard Parker" Subject: Re: KR: Man its HOT! >the sun? I plan to use a thermometer to try and keep it under 180 my understanding was that 140 F was the post curing temp. 180 may leave you with a big puddle. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ------------------------------ Date: Fri, 17 Jul 1998 08:02:33 -0700 From: Micheal Mims Subject: Re: KR: Vertex Magnetos Ed Janssen wrote: > > Mike, > > No mystery - Two methods I've seen are -You either build in a big ol' ugly lookin' bump in the cowling over the Verrtex or cut a hole and let it hang out in the breeze. :0) > Another way (Mike you will like his one) is to do it like we did in my motorcycle days. You can get them with cog belt drive systems. We used to mount them laying sideways on our dragbikes just behind (or infront of) the cylinders and drive them off the crank end where the points used to be. Worked great. Some people shy away from belt driven ignitions and dont think twice about running their camshaft from one but we never broke a belt. - -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims SP290,.. Tearing aport the engine now! mailto:mikemims@pacbell.net http://www.geocities.com/CapeCanaveral/Hangar/4136/ Irvine Ca Fax 949.856.9417 ***Legal Disclaimer***: All information, included in any of my aircraft related correspondence, is strictly food for thought and is in no way is intended to imply that they are anything more than ideas requiring additional qualified engineering analysis. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------------------------------ End of krnet-l-digest V2 #122 *****************************