From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 347, Issue 434 Date: 10/29/2005 9:00:18 PM Send KRnet mailing list submissions to krnet@mylist.net To subscribe or unsubscribe via the World Wide Web, visit http://mylist.net/listinfo/krnet or, via email, send a message with subject or body 'help' to krnet-request@mylist.net You can reach the person managing the list at krnet-owner@mylist.net When replying, please edit your Subject line so it is more specific than "Re: Contents of KRnet digest..." Today's Topics: 1. Piano Hinge Lube (Kerry Miller) 2. RE: piano hinge lubricant? (Doug Rupert) 3. RE: piano hinge lubricant? (Brian Kraut) 4. Wood replacing (Cris.) 5. Second Flight (Joseph H Horton) 6. WAF's (Ron Smith) 7. Re: Second Flight (Orma) 8. Re: WAF's (Orma) 9. Re: Second Flight (Joseph H Horton) 10. Re: Second Flight (M & C) 11. Re: WAF's (Jerry Mahurin) 12. "project" update (Mark Langford) 13. Re: Second Flight (Joseph H. Horton) 14. Re: "project" update (Joseph H. Horton) 15. Re: "project" update (Mark Langford) 16. Questions for Joe Horton (Ron Smith) 17. Questions for Joe Horton (Ron Smith) ---------------------------------------------------------------------- Message: 1 Date: Fri, 28 Oct 2005 23:32:42 -0500 From: Kerry Miller Subject: KR> Piano Hinge Lube To: krnet@mylist.net Message-ID: <6.0.0.22.0.20051028233100.01b93d78@pop3.ticnet.com> Content-Type: text/plain; charset="us-ascii"; format=flowed Sorry for changing the topic, I'm on the digest... Try something called LPS3. They have several products, LPS1 is sorta' like WD-40 but LPS3 sprays like oil then dries like grease. It's perfect for hinges, you can shoot it into the hinge then it dries so it will stay put. Hope it works for you! Kerry Miller Victoria, TX ------------------------------ Message: 2 Date: Sat, 29 Oct 2005 10:05:05 -0400 From: "Doug Rupert" Subject: RE: KR> piano hinge lubricant? To: "'KRnet'" Message-ID: <000f01c5dc91$c41905b0$1c3cd0d8@office> Content-Type: text/plain; charset="windows-1250" Try getting a spray can of graphite. Goes on the same way as WD 40 and the alcohol type propellant evaporates leaving the graphite in place. It is dry and therefore does not collect dirt or other debris and is slippery as hell. Graphite is what they use in the manufacture of brake linings to keep them from squealing since asbestos has been replaced by metal. Lasts a long time and doesn't wash off readily. Doug Rupert Can somebody remind me what it was and where to get it (NAPA, I'm thinking)? If all else fails, I'll probably just wax 'em, right after I Scotchbrite 'em, but I vaguely remember somebody saying they had "just the ticket". -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.12.4/146 - Release Date: 10/21/2005 ------------------------------ Message: 3 Date: Sat, 29 Oct 2005 10:53:36 -0400 From: "Brian Kraut" Subject: RE: KR> piano hinge lubricant? To: "KRnet" Message-ID: Content-Type: text/plain; charset="windows-1250" Graphite is great, but it doesn't give any corrosion protection. That gets me thinking Mark. If you are getting rust you obviously don't have a stainless hinge pin. I am not sure what Wicks stocks, but I did buy two pieces of stainless hinge pin at Sun and Fun last year to replace the pins on my Mustang flaps that were not stainless. Spruce stocks 6' pieces P/N 03-49000 for $2.70. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net]On Behalf Of Doug Rupert Sent: Saturday, October 29, 2005 10:05 AM To: 'KRnet' Subject: RE: KR> piano hinge lubricant? Try getting a spray can of graphite. Goes on the same way as WD 40 and the alcohol type propellant evaporates leaving the graphite in place. It is dry and therefore does not collect dirt or other debris and is slippery as hell. Graphite is what they use in the manufacture of brake linings to keep them from squealing since asbestos has been replaced by metal. Lasts a long time and doesn't wash off readily. Doug Rupert Can somebody remind me what it was and where to get it (NAPA, I'm thinking)? If all else fails, I'll probably just wax 'em, right after I Scotchbrite 'em, but I vaguely remember somebody saying they had "just the ticket". -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.12.4/146 - Release Date: 10/21/2005 ------------------------------ Message: 4 Date: Sat, 29 Oct 2005 17:14:34 +0200 From: "Cris." Subject: KR> Wood replacing To: KRnet Message-ID: Content-Type: text/plain; charset=ISO-8859-1 As some of you already know, I still have some months to wait before starting to build. My first step, after the "zero step" consisting in preparing the shop, will be the "boat". I have some contacts to buy Spruce, here in Italy, but I'm reading lots of stuff about construction techniques and in one of EAA publications I found an interesting article about replacing Douglas Fir for Spruce. In a few words, accepting a 29% more weight I could gain 26% in resistence (in general, simply replacing without redesigning the structure) and this could allow me to avoid big trouble in getting the wood (also $$$ related!). My questions: 1. In your opinion/experience, what is the weight of spruce wood you guys used building your KR2S? Obviously that 29% should refer to the wooden part, not to the total weight. 2. I'll install a Rotax 912 (80HP), sensibly lighter than usual installations. Since the weight will increase mainly behind the firewall, will I face problems with the CG position? 3. Some publications report that Douglas Fir is more critical using Epoxies. Is that a known issue? Thank you so much. Cristiano. -- Land the airplane, rubber side down, main wheels first. ------------------------------ Message: 5 Date: Sat, 29 Oct 2005 14:09:28 -0400 From: Joseph H Horton Subject: KR> Second Flight To: krnet@mylist.net Message-ID: <20051029.140929.-39567795.0.joe.kr2s.builder@juno.com> Content-Type: text/plain; charset=us-ascii Guys, I have to take any opportunities I can with the way the weather has been around here and the busy schedule of life in general. I have checked everything that I can think of under the hood for the small vibration I noticed on the first flight. These include compression check, wiring checked, prop index, prop torque, spinner, prop tracking and looking every thing over. It was cold and cloudy this morning but the wind was light enough and I had an hour in between chores this morning, Sooo out I went. I preheated the engine to 80 deg. and pulled 357CJ out and fired her up. Preflight was good and the engine and all the instruments showed good numbers. I taxied to 29, did the run up, called for departure to the pattern. Down the runway we went. Just a couple seconds into the roll some movement caught my eye. I glanced over to the canopy and saw it was unlatched. I was most likely at take off speed al;ready then but decided to abort. I went to the turn off and called clear and latched the canopy down. So much for the take off check list. I taxied back to try again. This time every thing seemed better and we were in the air in a matter of seconds. I set climb at 85 mph and had just shy of 900'/min. climb. I was barely a 1/4 mile past the end the runway and at pattern altitude. I leveled off and trimmed for level flight and throttled back to hold 85 to 90 mph in the pattern. I forgot to look at the rpm's at this point. It really don't take long to get around the pattern. Almost to quickly I had to start the decent and being more aware of how fast speed can build I was able to control rpm's and decent and airspeed little better. I did not use any flaps this time ( I think partly because I forgot). I set up a little longer finial to be lined up and adjust speed. I crossed the threshold at about 10' and 75 mph. A couple feet left of centerline with right wing just slightly down for the north crosswind. Touch down was almost exactly where lift off was. It was a little fast and skipped back up a couple feet and settled right back down.( This sounds better then bouncing it inn) Roll out was fine and easily controllable. It was a far better than my first survivable impact with the runway. I was out of time by now so I packed it inn for the morning. The flight and plane was fine for the short pattern work but there is still a little vibration that nags at me. Hopefully more tomorrow. Still a happy guy Joe Horton, Coopersburg, Pa. joe.kr2s.builder@juno.com ------------------------------ Message: 6 Date: Sat, 29 Oct 2005 15:02:14 -0700 (PDT) From: Ron Smith Subject: KR> WAF's To: "krnet@mylist.net" Message-ID: <20051029220214.59673.qmail@web81704.mail.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 I am ready to install my WAF. Should I do anything to seal the wood under the WAF's? Ron Smith Kr2ssxl Cypress Ca U.S.A. mercedesmann@yahoo.com http://ronsmith.myphotoalbum.com/albums.php ------------------------------ Message: 7 Date: Sat, 29 Oct 2005 18:42:48 -0400 From: "Orma" Subject: Re: KR> Second Flight To: "KRnet" Message-ID: <007901c5dcda$17bd9990$0302a8c0@ROBBINS1> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original It's always great to hear new KR's having great flight reports. Flying a bigger pattern or making an orbit of the airport helps give you more time to plan your landings. 75 mph does not sound bad. When you get all the numbers I hope you'll add your KR to the KR info sheet. Orma Southfield, MI KR-2 N110LR 1984 See Tweety at http://www.kr-2.aviation-mechanics.com See other KR spces at www.kr-2.aviation-mechanics.com/krinfo.htm ------------------------------ Message: 8 Date: Sat, 29 Oct 2005 18:44:12 -0400 From: "Orma" Subject: Re: KR> WAF's To: "KRnet" Message-ID: <007c01c5dcda$49d3dd90$0302a8c0@ROBBINS1> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original At a minimum you should seal the wood with spar varnish. Orma Southfield, MI KR-2 N110LR 1984 See Tweety at http://www.kr-2.aviation-mechanics.com See other KR spces at www.kr-2.aviation-mechanics.com/krinfo.htm ------------------------------ Message: 9 Date: Sat, 29 Oct 2005 19:36:40 -0400 From: Joseph H Horton Subject: Re: KR> Second Flight To: krnet@mylist.net Message-ID: <20051029.193640.-419689.2.joe.kr2s.builder@juno.com> Content-Type: text/plain; charset=us-ascii Thanks and yes I will add to the info page, but I need to have it accurate. I don't want to start any performance rumors. I have been thinking about that 75 mph today and think that I might have been flirting with trouble. I think that I mentioned in another post that I have around an 8 to 10 mph error in the airspeed and that is it indicates higher than actual.(this was a quick check in the 130 mph range) but on the other side of the thought at 3000' it approached power off stall at 65 mph indicated but I have not taken her to full stall. A lot more testing to come and the errors will be searched out. For the time being I think that it best to not try to get any lower in the speed range over the threshold for that and a couple other reasons. Joe On Sat, 29 Oct 2005 18:42:48 -0400 "Orma" writes: > It's always great to hear new KR's having great flight reports. > Flying a > bigger pattern or making an orbit of the airport helps give you more > time to > plan your landings. 75 mph does not sound bad. When you get all > the > numbers I hope you'll add your KR to the KR info sheet. > Orma > Southfield, MI > KR-2 N110LR 1984 > See Tweety at http://www.kr-2.aviation-mechanics.com > See other KR spces at www.kr-2.aviation-mechanics.com/krinfo.htm > > > > _______________________________________ > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > ------------------------------ Message: 10 Date: Sat, 29 Oct 2005 19:26:47 -0500 From: "M & C" Subject: Re: KR> Second Flight To: "KRnet" Message-ID: Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Joe, I think you should take the prop off and check it for balance. Mike Turner Jackson, Missouri Swing the prop and light the fire, dance amoung the stars.........N642MC ----- Original Message ----- From: "Joseph H Horton" To: Sent: Saturday, October 29, 2005 1:09 PM Subject: KR> Second Flight > Guys, I have checked > everything that I can think of under the hood for the small vibration > I noticed on the first flight. These include compression check, wiring > checked, prop index, prop torque, spinner, prop tracking and looking > every thing over. > The flight and plane was fine for the short pattern work but > there is still a little vibration that nags at me. Hopefully more > tomorrow. Still a happy guy > Joe Horton, Coopersburg, Pa. > joe.kr2s.builder@juno.com > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > ------------------------------ Message: 11 Date: Sat, 29 Oct 2005 21:30:54 -0400 From: Jerry Mahurin Subject: Re: KR> WAF's To: KRnet Message-ID: <3812d7480510291830w13afc117i4ce20d220b334144@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 ........of course you want to completely finish the wood before putting anything on top of it............ Keep on keeping on, On 10/29/05, Ron Smith wrote: > > I am ready to install my WAF. Should I do anything to seal the wood > under the WAF's? > > > Ron Smith > Kr2ssxl > Cypress Ca U.S.A. > mercedesmann@yahoo.com http://ronsmith.myphotoalbum.com/albums.php > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > ------------------------------ Message: 12 Date: Sat, 29 Oct 2005 20:47:27 -0500 From: "Mark Langford" Subject: KR> "project" update To: "KRnet" Message-ID: <002c01c5dcf3$e225aa10$0202a8c0@2600xp> Content-Type: text/plain; charset="windows-1250" NetHeads, I guess I'm about to answer my own question. I'm sure there are lots of alternatives as to the best hinge pin lubricant, but I suspect that good old fashioned carnauba paste wax is hard to beat. My aft deck has been so difficult to install that up until today, I needed somebody to push on one side to relieve the pressure to get the pins in. It's been that way ever since the deck sat flat for a year or two waiting for the rest of the plane to get finished. When I took the deck off last Saturday, the pin was rusted, and it was all I could do to yank them out with vice grips and everything I could put into it. Today I Scotchbrited the pins, and then wiped a quick coat of carnauba wax on them. It took all of one minute per pin. After that, both pins slipped effortlessly, with only finger pressure! Night and day difference...and I highly recommend it! I didn't want to use any oily kind of junk because of the mess. This stuff is clean. Try it...you'll like it! I got the plane back together just in time to fly it for an hour before dark. Five landings, and only one of them was something to be ashamed of. One of the things I did was move the static ports up to within a foot of the firewall, and that seems to have fixed the altimeter perfectly. Airspeed is better too, but still reads high at the low end. I attribute that to propwash, but further investigation is required. I did a stall to make sure I still knew where it would fall out of the sky. Most of my landings were in the high 60's over the fence, according to the GPS in calm conditions. I did my first "time to climb" using a stop watch today, and it took five minutes to climb 6000 feet off the runway. That was me and full fuel, and climbing at 120 mph. It should do much better at 90 or so, but that'll have to wait for another day. Gap seals should make a big difference too. I think my VSI is out in la-la land though, I'll take it out and test it in the next few weeks. Nothing I can do will make that thing work right, so I think it's just toast, just like my altimeter was. Also, I finally fixed the EIS tachometer function. I was having lunch with a table full of electrical engineers Friday and one them asked if the tach signal wire was shielded. Duhhhhh....nope. I replaced it with a shielded wire and now it's rock steady and accurate. No more 5000 rpm readings at cruise for me! My third Tiny Tach croaked last month with a grand total of 45 hours on it, so I won't be pouring any more money down that hole. It looks great on paper, but doesn't work for me. Any recommendations on a small digital tach? I added the EIS fuel totalizer while it was down, so maybe I'll have some real fuel consumption numbers soon. I also installed the backup battery in the tail....another UPS battery. Jim Hill finished swapping out some bad alternator parts on his plane, and we hope to deliver it to Little Rock sometime next week, with me flying him back. It's only 200 miles, so it'll be a 1.5 hour trip. Tomorrow I'm flying to south Alabama to visit my folks, landing on my father's grass strip. He told me to watch out for cows though! The weather's been fantastic, and is forecast to be that way all next week. Life is good... Mark Langford, Huntsville, Alabama see homebuilt airplane at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 13 Date: Sat, 29 Oct 2005 21:46:39 -0400 From: "Joseph H. Horton" Subject: Re: KR> Second Flight To: krnet@mylist.net Message-ID: <20051029.214639.7580.2.joe.kr2s.builder@juno.com> Content-Type: text/plain; charset=us-ascii Mike wrote: > Joe, I think you should take the prop off and check it for balance. > > Mike Turner > Jackson, Missouri > Swing the prop and light the fire, dance among the > stars.........N642MC Mike, I am going to flip it 180 deg. when I do that I will bring it back home and check it again. Joe Horton, Coopersburg, PA. joe.kr2s.builder@juno.com ------------------------------ Message: 14 Date: Sat, 29 Oct 2005 21:57:09 -0400 From: "Joseph H. Horton" Subject: Re: KR> "project" update To: krnet@mylist.net Message-ID: <20051029.215710.7580.3.joe.kr2s.builder@juno.com> Content-Type: text/plain; charset=windows-1250 > I got the plane back together just in time to fly it for an hour > before > dark. Five landings, and only one of them was something to be > ashamed of. > The weather's > been > fantastic, and is forecast to be that way all next week. Life is > good... > > Mark Langford, Huntsville, Alabama > see homebuilt airplane at http://home.hiwaay.net/~langford email to > N56ML "at" hiwaay.net > > > Ohh Great -- The only thing in our forecast is more wind. Did you put a shield on the factory wire or replace it all the way to the connector with a new shielded wire?? Joe Horton, Coopersburg, PA. joe.kr2s.builder@juno.com ------------------------------ Message: 15 Date: Sat, 29 Oct 2005 21:20:20 -0500 From: "Mark Langford" Subject: Re: KR> "project" update To: "KRnet" Message-ID: <005d01c5dcf8$7a1035d0$0202a8c0@2600xp> Content-Type: text/plain; charset="windows-1250" Joe Horton, from the great white windy North, wrote: > Ohh Great -- The only thing in our forecast is more wind. > Did you put a shield on the factory wire or replace it all the way to > the connector with a new shielded wire?? I replaced the whole wire with an MS spec wire that I fished out of the dumpster outside our electronics shop at Teledyne Brown Engineering. I grounded the end nearest the EIS and left the other one ungrounded. I cut the braid off short and shrink tubed it in place on the coil end, to make sure that the braid could never ground the coil. That's one of those things that could ruin your day if it never occured to you that it could happen... Mark Langford, Huntsville, Alabama see homebuilt airplane at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 16 Date: Sat, 29 Oct 2005 20:21:14 -0700 (PDT) From: Ron Smith Subject: KR> Questions for Joe Horton To: "krnet@mylist.net" Message-ID: <20051030032114.34944.qmail@web81704.mail.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 First Congrates! You must be on cloud nine......er maybe 10! Joe, how long is your fuselage? Is it standard KR2S length? Did you use the "new airfoil" and the 1 degree incidence? If so, what is the incidence of your HS? I'm getting close to building my HS, and am wondering how I will set it. Someone, I think Mark L. said a piece of 3/32 ply under the aft HS spar should be perfect. I was wondering what you did, and how is the plane with regard to trim, if you noticed? Congratulations again on your remarkable acheivment. ------------------------------ Message: 17 Date: Sat, 29 Oct 2005 20:37:24 -0700 (PDT) From: Ron Smith Subject: KR> Questions for Joe Horton To: "krnet@mylist.net" Message-ID: <20051030033725.2876.qmail@web81707.mail.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 First Congrates! You must be on cloud nine......er maybe 10! Joe, how long is your fuselage? Is it standard KR2S length? Did you use the "new airfoil" and the 1 degree incidence? If so, what is the incidence of your HS? I'm getting close to building my HS, and am wondering how I will set it. Someone, I think Mark L. said a piece of 3/32 ply under the aft HS spar should be perfect. I was wondering what you did, and how is the plane with regard to trim, if you noticed? Congratulations again on your remarkable achievment. ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 347, Issue 434 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================