From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 347, Issue 453 Date: 11/9/2005 6:03:55 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. Re: Flight Report (Joseph H. Horton) 2. Re: Back to KR basics (Frank Ross) 3. 2S for sale, Katrina clipped wings (mpacl@cmaaccess.com) 4. Re: AS504x wings (pedro@heroic.co.uk) 5. Re: Re: AS504x wings (Donald Reid) 6. diehl wing skins (Chad Stenson) 7. Radio suggestions? (Terry Teer) 8. Radio suggestions? (Terry Teer) 9. Re: Radio suggestions? (larry severson) 10. Another tail section question (Ron Smith) 11. Re: Another tail section question (Mark Langford) 12. Re: Another tail section question (Mark Langford) 13. Re: Another tail section question (Ron Smith) 14. Re: Another tail section question (Martindale Family) 15. Microair (JIM VANCE) 16. Re: Another tail section question (Ron Smith) 17. Re: Radio suggestions? (Larry&Sallie Flesner) 18. Re: diehl wing skins (Larry&Sallie Flesner) 19. Re: Another tail section question (Larry&Sallie Flesner) 20. Re: Radio suggestions? (Barry Kruyssen) 21. Re: Radio suggestions? (Barry Kruyssen) 22. Sonerai (Brian Kraut) 23. Re: Flight Report (Ron Lee) 24. Re: Flight Report (Joseph H. Horton) 25. Re: Another tail section question (Ron Smith) 26. Re: Flight Report (M & C) 27. Re: Flight Report (Dan Heath) ---------------------------------------------------------------------- Message: 1 Date: Wed, 9 Nov 2005 05:47:38 -0500 From: "Joseph H. Horton" Subject: Re: KR> Flight Report To: krnet@mylist.net Message-ID: <20051109.054738.2412.3.joe.kr2s.builder@juno.com> Content-Type: text/plain; charset=us-ascii > > By the way, how is she getting along from the patio falling on her? > > Larry Flesner > Thanks for asking. She is getting better. She started to drive again this past week and I think that it all will just be a memory before Christmas. KR- no flying for the next few days while the weather Gods do their thing. I will flip the prop around tonight to see if it changes the small vibration I still have. Joe Horton, Coopersburg, PA. joe.kr2s.builder@juno.com ------------------------------ Message: 2 Date: Wed, 9 Nov 2005 02:59:48 -0800 (PST) From: Frank Ross Subject: Re: KR> Back to KR basics To: KRnet Message-ID: <20051109105949.68381.qmail@web32014.mail.mud.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Congratulations Serge! Drive carefully :} Frank Ross Frank Ross, EAA Chapter 35, San Geronimo, TX RAF Lakenheath, Suffolk, England, UK Visit my photo album at: http://photos.yahoo.com/alamokr2 __________________________________ Start your day with Yahoo! - Make it your home page! http://www.yahoo.com/r/hs ------------------------------ Message: 3 Date: Wed, 9 Nov 2005 03:26:17 -0800 From: mpacl@cmaaccess.com Subject: KR> 2S for sale, Katrina clipped wings To: krnet@mylist.net Message-ID: <200511091126.jA9BQHkk001704@mayne.server.parasun.com> Content-Type: TEXT/plain; CHARSET=US-ASCII Contact me off of the net at malcolm.hartman@neworleans.af.mil or 504.393.9133. ------------------------------ Message: 4 Date: Wed, 9 Nov 2005 12:24:29 -0000 (GMT) From: Subject: KR> Re: AS504x wings To: Message-ID: <21295.139.149.1.203.1131539069.squirrel@www.heroic.co.uk> Content-Type: text/plain; charset=iso-8859-1 Hi Thanks for the various contributions. >From the discussion then, I get the impression that the quarter cord figure is empirical - but pretty close to the calcutated figures for RAF48 and AS504x wings. I guess that the important thing in designing a wing is that the spar is as close as possible to the centre of lift, so as to minimise twisting forces inside the wing. I guess also that the most important consideration regarding CG is that it must never move aft of the center of lift, you want to ensure that if the fan stops pulling, then the plane will tend to dive rather than nose up into a stall. If there a rule of thumb for calculating safe CG? Pete ------------------------------ Message: 5 Date: Wed, 09 Nov 2005 09:12:57 -0500 From: Donald Reid Subject: Re: KR> Re: AS504x wings To: KRnet Message-ID: <6.2.3.4.2.20051109084303.048f9678@mail.peoplepc.com> Content-Type: text/plain; charset="us-ascii"; format=flowed At 07:24 AM 11/9/2005, you wrote: > >From the discussion then, I get the impression that the quarter cord >figure is empirical - but pretty close to the calcutated figures for >RAF48 and AS504x wings. The quarter chord location is not empirically derived. It is located at 25 percent of the chord. It is useful in aerodynamic calculations for a variety of reasons. The aerodynamic center is also not empirically derived. It is a real point in the airfoil and it is defined as the point at which the pitch moment is constant. This is the twisting force that an airfoil generates as it generates lift. It is typically a nose-down force. A symmetrical airfoil will have a pitch moment of zero. Airfoils with a trailing edge that are reflexed upwards can have a positive pitch moment and may be used in flying wings. >I guess that the important thing in designing a wing is that the spar >is as close as possible to the centre of lift, so as to minimise >twisting forces inside the wing. Minimum twisting forces in a wing will generally occur with a spar that is located somewhat behind the aerodynamic center. With a typical airfoil, this is generally about 30-35 percent. >I guess also that the most important consideration regarding CG is that >it must never move aft of the center of lift, you want to ensure that >if the fan stops pulling, then the plane will tend to dive rather than >nose up into a stall. > >If there a rule of thumb for calculating safe CG? The only real way to calculate this before flight testing is to determine the neutral stability point. If the center of gravity is at the neutral stability point, a change in the pitch control force will result in a constant change in the angle of attack. An airplane is generally neutral in roll stability; if you give it some roll force on the stick, it will roll at a nearly constant rate until you remove the roll force from the stick. Neutral in pitch does exactly the same thing. The farther forward the center of gravity is from the neutral stability point the more stable the aircraft in pitch. For a conventional aircraft configuration, the neutral stability point will be somewhere between 30 and 40 percent of the Mean Aerodynamic Chord. Your aft-most CG limit is then fixed at least 5 percent in front of that point. My own KR based design has a calculated neutral stability point at 34.5 percent. Until flight testing is completed, my aft-most CG limit is 29 percent of the MAC. If you want a rule-of-thumb and you have a conventional looking airplane then start with a CG of 20 percent and move the allowable range through flight testing in small increments. Don Reid - donreid "at" peoplepc.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://aerofoilengineering.com KR2XL construction: http://aerofoilengineering.com/KR/KR2XL.htm Aviation Surplus: http://aerofoilengineering.com/PartsListing/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA Regional Fly-in: http://vaeaa.org ------------------------------ Message: 6 Date: Wed, 9 Nov 2005 11:18:03 -0500 From: Chad Stenson Subject: KR> diehl wing skins To: krnet@mylist.net Message-ID: <200511091618.jA9GI31f016034@mole.e-mol.com> Content-Type: text/plain Everyone, What are anyone's thoughts on the Diehl wing skins on a KR2S? I would assume they use the original RAF48 airfoil rather than the new one correct? Pros or cons? $1800 doesn't seem too bad to me. Does the additional wingspan take away any on the cruise speeds? Thanks chad _______________________________________________________ Sent through e-mol. E-mail, Anywhere, Anytime. http://www.e-mol.com ------------------------------ Message: 7 Date: Wed, 9 Nov 2005 11:35:50 -0600 From: "Terry Teer" Subject: KR> Radio suggestions? To: "KRnet" Message-ID: <000801c5e554$0799ca20$d2f04fd8@TGSR41610670> Content-Type: text/plain; charset="iso-8859-1" Will be changing my instrument panel this winter and would like to install a panel mount transceiver. Clearance behind the panel is about 10" max. Would like to install Icom 200 but too deep. Have entertained the idea of Microair panel mount. Has anyone used or experience this unit? Regards, Terry Ackerman, MS KR-2 ------------------------------ Message: 8 Date: Wed, 9 Nov 2005 11:35:50 -0600 From: "Terry Teer" Subject: KR> Radio suggestions? To: "KRnet" Message-ID: <000d01c5e558$02812cf0$d2f04fd8@TGSR41610670> Content-Type: text/plain; charset="iso-8859-1" Will be changing my instrument panel this winter and would like to install a panel mount transceiver. Clearance behind the panel is about 10" max. Would like to install Icom 200 but too deep. Have entertained the idea of Microair panel mount. Has anyone used or experience this unit? Regards, Terry Ackerman, MS KR-2 ------------------------------ Message: 9 Date: Wed, 09 Nov 2005 10:14:54 -0800 From: larry severson Subject: Re: KR> Radio suggestions? To: KRnet Message-ID: <6.2.5.6.0.20051109101345.0339c998@socal.rr.com> Content-Type: text/plain; charset="us-ascii"; format=flowed >Have entertained the idea of Microair panel mount. Has anyone used >or experience this unit? I have the Microair 760 radio. Signals come in loud and clear. Of course, the antenna needs to be good. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@socal.rr.com ------------------------------ Message: 10 Date: Wed, 9 Nov 2005 10:23:22 -0800 (PST) From: Ron Smith Subject: KR> Another tail section question To: "krnet@mylist.net" Message-ID: <20051109182322.59788.qmail@web81708.mail.mud.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Hello Knetters, How much of a gap is there supposed to be between the HS, and the elevator? The plans seem to be little help here. Thanks in advance, Ron Smith Kr2ssxl Cypress Ca U.S.A. mercedesmann@yahoo.com http://ronsmith.myphotoalbum.com/albums.php --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click. ------------------------------ Message: 11 Date: Wed, 9 Nov 2005 12:28:59 -0600 From: "Mark Langford" Subject: Re: KR> Another tail section question To: "KRnet" Message-ID: <000a01c5e55b$7427d7c0$d004a58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Ron Smith wrote: > How much of a gap is there supposed to be between the HS, and the > elevator? The plans seem to be little help here. I think the answer is "whatever gap there ends up being after you build and install the hinges shown in the plans". Having said that, there's no reason not to fair the gap in like I did at http://home.hiwaay.net/~langford/kht.html (next to last photo). There are lots of details left out of the plans that you don't ever get unless you buy RR's premade parts, but I don't think this is an example of that. Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 12 Date: Wed, 9 Nov 2005 12:30:22 -0600 From: "Mark Langford" Subject: Re: KR> Another tail section question To: "KRnet" Message-ID: <000d01c5e55b$a57f1180$d004a58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original And don't forget that the "new standard" for those hinges is the "Dr. Dean hinge", shown at http://home.hiwaay.net/~langford/dean_hinge/ ... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 13 Date: Wed, 9 Nov 2005 10:52:11 -0800 (PST) From: Ron Smith Subject: Re: KR> Another tail section question To: KRnet Message-ID: <20051109185211.59595.qmail@web81707.mail.mud.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Mark Langford wrote: And don't forget that the "new standard" for those hinges is the "Dr. Dean hinge", shown at http://home.hiwaay.net/~langford/dean_hinge/ ... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net Hi Mark, I am using the Dr. Dean hinges, but I am keeping the "standard plans airfoil shapes". I don't see anywhere on the plans where it tells you how to form that gap. From what I see on the plans it looks as though there is no gap .Maybe I'm just not reading the plans correctly. I just made mine about 1/8 of an inch. I was wondering how much gap everyone else has. I am concerned that I don't get a binding condition, cause by having that gap to tight. Ron Smith Kr2ssxl Cypress Ca U.S.A. mercedesmann@yahoo.com http://ronsmith.myphotoalbum.com/albums.php --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click. ------------------------------ Message: 14 Date: Thu, 10 Nov 2005 07:25:04 +1100 From: "Martindale Family" Subject: Re: KR> Another tail section question To: "KRnet" Message-ID: <001a01c5e56b$ab0c5260$2597693a@martindale> Content-Type: text/plain; charset="iso-8859-1" You want the gap small to minimise air flow from the high pressure side to the low pressure side. Mind you, the KR elevator is so effective that it might not matter all that much. My gap is about 2 mm. I wonder how much the tail surface flexes in flight and whether this could cause binding if too many hinges were used. I think there is a thread on this. Check the archives. John The Martindale Family 29 Jane Circuit Toormina NSW 2452 Australia ph: 61 2 66 584767 email: johnjanet@optusnet.com.au ----- Original Message ----- From: "Ron Smith" To: "KRnet" Sent: Thursday, November 10, 2005 5:52 AM Subject: Re: KR> Another tail section question > > > Mark Langford wrote: > And don't forget that the "new standard" for those hinges is the "Dr. > Dean hinge", shown at http://home.hiwaay.net/~langford/dean_hinge/ ... > > Mark Langford, Huntsville, Alabama > see KR2S project N56ML at http://home.hiwaay.net/~langford email to > N56ML "at" hiwaay.net > > > Hi Mark, > > > > I am using the Dr. Dean hinges, but I am keeping the "standard plans airfoil shapes". I don't see anywhere on the plans where it tells you how to form that gap. From what I see on the plans it looks as though there is no gap .Maybe I'm just not reading the plans correctly. I just made mine about 1/8 of an inch. > > > > I was wondering how much gap everyone else has. > > > > I am concerned that I don't get a binding condition, cause by having > that gap to tight. > > > > Ron Smith > Kr2ssxl > Cypress Ca U.S.A. > mercedesmann@yahoo.com http://ronsmith.myphotoalbum.com/albums.php > > --------------------------------- > Yahoo! FareChase - Search multiple travel sites in one click. > _______________________________________ > 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: 15 Date: Wed, 9 Nov 2005 14:41:25 -0600 From: "JIM VANCE" Subject: KR> Microair To: "krnet" Message-ID: <001d01c5e56d$f3ce32a0$6a88f53f@Vance> Content-Type: text/plain; charset="iso-8859-1" I have installed a Microair 760 in the panel of my KR-2. I won't fly it until January, but the ground tests with a wattmeter, SWR bridge, and signal generator indicate that it performs as well or better than any other transceiver that I have worked with. Jim Vance Vance@hbcomm.net. ------------------------------ Message: 16 Date: Wed, 9 Nov 2005 13:40:34 -0800 (PST) From: Ron Smith Subject: Re: KR> Another tail section question To: KRnet Message-ID: <20051109214034.27776.qmail@web81701.mail.mud.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Martindale Family wrote: You want the gap small to minimise air flow from the high pressure side to the low pressure side. Mind you, the KR elevator is so effective that it might not matter all that much. My gap is about 2 mm. I wonder how much the tail surface flexes in flight and whether this could cause binding if too many hinges were used. I think there is a thread on this. Check the archives. John The Martindale Family 29 Jane Circuit Toormina NSW 2452 Australia Thanks John, Those were exactly my concerns. I didn't want to have to wide a gap, because I know that would effect the areodynamics, and I wasn't sure of how tight I could get with out getting bitten by some flexing to to flight air pressures. I can't imagine the HS flexing more than 1/8, especially since I have three hinges on each side. Ron Smith Kr2ssxl Cypress Ca U.S.A. mercedesmann@yahoo.com http://ronsmith.myphotoalbum.com/albums.php --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click. ------------------------------ Message: 17 Date: Wed, 09 Nov 2005 15:49:41 -0600 From: Larry&Sallie Flesner Subject: Re: KR> Radio suggestions? To: KRnet Message-ID: <6.2.5.6.0.20051109153639.02f28788@verizon.net> Content-Type: text/plain; charset=us-ascii; format=flowed At 11:35 AM 11/9/2005, you wrote: >Will be changing my instrument panel this winter and would like to >install a panel mount transceiver. Clearance behind the panel is >about 10" max. Would like to install Icom 200 but too deep. Have >entertained the idea of Microair panel mount. Has anyone used or >experience this unit? >Terry Ackerman, MS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ If you want to save some $$$$$, check out my radio installation at: http://www.krnet.org/mvn2004/040929271.jpg It is a JRC nav/com with all the goodies like memory channels, flip flop standby channel, etc. I ran out of room on my panel so I mounted it on a modified yoke mount as used for clip boards,et. It has a thumb screw adjust for position and I can even move it up to nearly behind the panel. I normally leave it in the position you see in the above photo as it seems never to be in the way on entry or exit. It is connected to an external antenna and the intercom is located behind the seats to keep the headset wires out of the way. Since that picture was taken the rechargeable battery pack failed. I cut it off leaving the part that attaches to the radio and approx an additional 1/2 inch. I hardwired it so I could connect to aircraft power using a quick disconnect and then poured it full of epoxy. It is now about 4 inches shorter than the picture indicates. I works GREAT. I can easily communicate with aircraft at 50 miles or more distance. The best part is it cost about $250 !! Larry Flesner ------------------------------ Message: 18 Date: Wed, 09 Nov 2005 15:54:49 -0600 From: Larry&Sallie Flesner Subject: Re: KR> diehl wing skins To: cjstenson@ameritech.net,KRnet Message-ID: <6.2.5.6.0.20051109155021.02f4c380@verizon.net> Content-Type: text/plain; charset=us-ascii; format=flowed > >What are anyone's thoughts on the Diehl wing skins on a KR2S? I >would assume they use the original RAF48 airfoil rather than the new >one correct? Pros or cons? $1800 doesn't seem too bad to me. Does >the additional wingspan take away any on the cruise speeds? >chad ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Probably a few miles per hour but if you are going to use an engine of less than 100 hp you will probably appreciate the extra climb rate they will give. They also build A LOT FASTER than scratch built wings. If $1800 fits your budget ,and you don't intend to go with the new wing shape, I'd be inclined to go with them. Get it flying. That's the fun part. :-) Larry Flesner ------------------------------ Message: 19 Date: Wed, 09 Nov 2005 16:04:21 -0600 From: Larry&Sallie Flesner Subject: Re: KR> Another tail section question To: KRnet Message-ID: <6.2.5.6.0.20051109155628.02ee8c70@verizon.net> Content-Type: text/plain; charset=us-ascii; format=flowed > > >I can't imagine the HS flexing more than 1/8, especially since I >have three hinges on each side. > >Ron Smith +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ If it flexes too much your hinges will bind and I've never heard of that happening on the horizontal stab. I did have one KR pilot tell me years ago that he thought his ailerons bound up on a high speed, high G turn. He released some back pressure, rolled level and then continued his pull up. I'd think you could overcome any binding of foam/glass layup with stick pressure if your life was depending on it. Also, any flexing in the horizontal stab would probably be mirrored in the elevator, thus eliminating a bind condition. That's my opinion and it worth every cent you paid for it. :-) Larry Flesner ------------------------------ Message: 20 Date: Thu, 10 Nov 2005 08:10:15 +1000 From: "Barry Kruyssen" Subject: Re: KR> Radio suggestions? To: "KRnet" Message-ID: <02bc01c5e57a$62734720$7900a8c0@technologyonecorp.com> Content-Type: text/plain; charset="iso-8859-1" Xcom 760 radio, in my opinion, the best value for money in a radio, dual watch, input for music, built in intercom, plus heaps more features, available from http://www.mcp.com.au/xcom760 I've talked to other aircraft over 300 km away as if they were in the patern with me, I was at 2000ft in the circuit and the other aircraft was climbing through 3500 ft. I have no financial interest in XCom, pitty :-) regards Barry Kruyssen Cairns, Australia RAA 19-3873 kr2@BigPond.com http://www.users.bigpond.com/kr2/kr2.htm ----- Original Message ----- From: Terry Teer To: KRnet Sent: Thursday, November 10, 2005 3:35 AM Subject: KR> Radio suggestions? Will be changing my instrument panel this winter and would like to install a panel mount transceiver. Clearance behind the panel is about 10" max. Would like to install Icom 200 but too deep. Have entertained the idea of Microair panel mount. Has anyone used or experience this unit? Regards, Terry Ackerman, MS KR-2 _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 21 Date: Thu, 10 Nov 2005 08:12:50 +1000 From: "Barry Kruyssen" Subject: Re: KR> Radio suggestions? To: "KRnet" Message-ID: <02c601c5e57a$c06013e0$7900a8c0@technologyonecorp.com> Content-Type: text/plain; charset="iso-8859-1" I have used the microair alot and found the changing of frequencies cumbersome with the small knobs, else they are a basic radio and work as advertised. Thus I bought the XCom. :-) Both are locally made in Australia. regards Barry Kruyssen Cairns, Australia RAA 19-3873 kr2@BigPond.com http://www.users.bigpond.com/kr2/kr2.htm ----- Original Message ----- From: Terry Teer To: KRnet Sent: Thursday, November 10, 2005 3:35 AM Subject: KR> Radio suggestions? Will be changing my instrument panel this winter and would like to install a panel mount transceiver. Clearance behind the panel is about 10" max. Would like to install Icom 200 but too deep. Have entertained the idea of Microair panel mount. Has anyone used or experience this unit? Regards, Terry Ackerman, MS KR-2 ------------------------------ Message: 22 Date: Wed, 9 Nov 2005 18:53:07 -0500 From: "Brian Kraut" Subject: KR> Sonerai To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" I came accross a deal on a Sonerai that may be too good to pass up. If anyone has any flight time in one, especially someone that has flown a KR also, send me an email offline at brian@engalt.com. Thanks. And yes, I still plan on flying the KR-2 and the 2S. The Sonerai and Mustang are just minor distractions from my KR path. Brian Kraut Engineering Alternatives, Inc. www.engalt.com ------------------------------ Message: 23 Date: Wed, 09 Nov 2005 06:47:35 -0700 From: Ron Lee Subject: Re: KR> Flight Report To: KRnet Message-ID: <6.0.1.1.2.20051109064710.01c2ad98@mail.pcisys.com> Content-Type: text/plain; charset="us-ascii"; format=flowed > I will flip the prop around tonight to see if it changes the small >vibration I still have. Have you considered a dynamic prop balancing? Ron Lee ------------------------------ Message: 24 Date: Wed, 9 Nov 2005 19:37:40 -0500 From: "Joseph H. Horton" Subject: Re: KR> Flight Report To: krnet@mylist.net Message-ID: <20051109.193740.888.0.joe.kr2s.builder@juno.com> Content-Type: text/plain; charset=us-ascii > > > I will flip the prop around tonight to see if it changes the > small > >vibration I still have. > > Have you considered a dynamic prop balancing? > > Ron Lee Yes I have and that will be the next step if I can not resolve it myself. I was told some where around $250 and that motivates me to seek all that I can do first. Joe Horton, Coopersburg, PA. joe.kr2s.builder@juno.com ------------------------------ Message: 25 Date: Wed, 9 Nov 2005 17:04:28 -0800 (PST) From: Ron Smith Subject: Re: KR> Another tail section question To: KRnet Message-ID: <20051110010428.12913.qmail@web81703.mail.mud.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 --- Larry&Sallie Flesner wrote: > > > > > > >I can't imagine the HS flexing more than 1/8, > especially since I > >have three hinges on each side. > > > >Ron Smith > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > If it flexes too much your hinges will bind and I've > never heard of > that happening > on the horizontal stab. I did have one KR pilot > tell me years ago > that he thought > his ailerons bound up on a high speed, high G turn. > He released some back > pressure, rolled level and then continued his pull > up. I'd think you > could overcome > any binding of foam/glass layup with stick pressure > if your life was depending > on it. Also, any flexing in the horizontal stab > would probably be mirrored in > the elevator, thus eliminating a bind condition. > > That's my opinion and it worth every cent you paid > for it. :-) > > Larry Flesner > > Thanks Larry, I was thinking the same thing. It is always good to get other builders input. I always respect the opinion of someone who has built and flown a KR, BTW. Ron Smith Kr2ssxl Cypress Ca U.S.A. mercedesmann@yahoo.com http://ronsmith.myphotoalbum.com/albums.php __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com ------------------------------ Message: 26 Date: Wed, 9 Nov 2005 19:20:39 -0600 From: "M & C" Subject: Re: KR> Flight Report To: "KRnet" Message-ID: Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original You could fly it without the spinner just to elimate that as a possible vibration problem. Mike Turner Jackson, Missouri Swing the prop and light the fire, dance amoung the stars.........N642MC ----- Original Message ----- From: "Ron Lee" To: "KRnet" Sent: Wednesday, November 09, 2005 7:47 AM Subject: Re: KR> Flight Report > >> I will flip the prop around tonight to see if it changes the small >>vibration I still have. > > Have you considered a dynamic prop balancing? > > Ron Lee > > > _______________________________________ > 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: 27 Date: Wed, 9 Nov 2005 21:03:20 -0500 (Eastern Standard Time) From: "Dan Heath" Subject: Re: KR> Flight Report To: Message-ID: <4372AA68.000001.02912@DANHOMECOMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" If you do decide to fly without the spinner, be sure to watch the temps closely. It can make quite a difference. See N64KR at http://KRBuilder.org - Then click on the pics See you in Mt. Vernon - 2006 - KR Gathering There is a time for building and a time for FLYING and the time for building is OVER. Daniel R. Heath - Lexington, SC -------Original Message------- You could fly it without the spinner just to elimate that as a possible vibration problem. ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 347, Issue 453 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================