From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 49 Date: 4/29/2004 7:24:08 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. engine exhause systems (Ron Eason) 2. Re: hole in LE (roger mitchell) 3. I-KRFN Rotax 912 first test (Aripo) 4. Re: I-KRFN Rotax 912 first test (Dan Heath) 5. Re: RV grin (Dan Heath) 6. RE: I-KRFN Rotax 912 first test (Serge F. Vidal) 7. RE: RV grin (Dana Overall) 8. Sun-n-Fun 2004 KR Dinner Photo (Wood, Sidney M.) 9. Re: delaminations! (Martindale Family) 10. Re: engine choices (Martindale Family) 11. RE: engine choices (Wood, Sidney M.) 12. Dan Diehl (Stephen Jacobs) 13. Re: Dan Diehl (Jim Morehead) 14. flight test (larry flesner) 15. antennae +Microair (Dene Collett (SA)) 16. : KR> flight test (larry flesner) 17. RE: Dan Diehl (Stephen Jacobs) 18. Re: antennae +Microair (Dennis Mingear) 19. RE: : KR> flight test (Stephen Jacobs) 20. Re: antennae +Microair (orma) 21. Re: antennae +Microair (Dennis Mingear) 22. Re: antennae +Microair (Joseph H Horton) 23. Re: antennae +Microair (Kenneth B. Jones) 24. Re: antennae +Microair (Dennis Mingear) ---------------------------------------------------------------------- Message: 1 Date: Wed, 28 Apr 2004 23:05:24 -0500 From: "Ron Eason" Subject: KR> engine exhause systems To: "KRnet" Message-ID: <00bd01c42d9f$33043420$6701a8c0@CADENGINEERING> Content-Type: text/plain; charset="iso-8859-1" I copied the following at the Jet Hot site for those interested. - JET-HOT APPLICATIONS The Hottest in High-Temp Coatings ® JET-HOT, the industry leader in automotive exaust coatings, has brought the advantages of high-tech coatings to automotive enthusiasts everywhere. Adapted from materials developed for the aerospace industry by parent company Metalic Ceramic Coatings Incorporated, JET-HOT offers superior performance and protection over any other coating available today. All materials are made in the USA in our in-house research facilities resulting in consistent improvements in coating technology. 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E-mail or call 800-432-3379 today and speak with one of our representatives, you'll receive a complete information package that gives you everything you need to get your parts coated right away! Find out why JET-HOT is the hottest in heat management coatings. Questions or comments? Let Us Know! Or call 1-800-432-3379 http://www.jet-hot.com/ ------------------------------ Message: 2 Date: Thu, 29 Apr 2004 02:26:11 -0600 From: "roger mitchell" Subject: Re: KR> hole in LE To: "KRnet" Message-ID: Content-Type: text/plain; charset="iso-8859-1" larry, this is roger mitchell, I work at TWA-AA overhaul in KC Mo, when we do composit repairs we use a perferated plastic on the cloth/resin layup then a solid plastic film, tape down firmly both layers, second larger than the first, and use a plastic applicator to push out any air bubbles, on the airliners we use vacumn( 21" hg) for air removal and pressure & heat for curing, probably wouldn't work on a KR. THE NEW " SARAN WRAP " with the cutter works wonderfully. layup is commonly done with the first piece the size/shape of the hole then up to four layers( depending on original thickness) each 1/2 larger than the first on all sides layed on in reverse order. the easy way to accomplish this is to first work epoxy into the cloth between two pieces of heavy plastic film,draw the shapes needed,cut out, and peel-n-stick. if you want you may call me at 816-305-9689 ----- Original Message ----- From: larry severson To: KRnet Sent: Wednesday, April 28, 2004 6:48 PM Subject: KR> hole in LE I am going to have to patch a hole on the leading edge. matching the contour is easy, but do I have to remove all of the paint, primer, and filling down to the glass to get a good patch adhesion on the 1-2 in around the hole. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@socal.rr.com _______________________________________ 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: 3 Date: Thu, 29 Apr 2004 11:10:17 +0200 From: "Aripo" Subject: KR> I-KRFN Rotax 912 first test To: "krnet" Message-ID: <000c01c42dc9$cf7d7a80$a47e3052@r9a7v5> Content-Type: text/plain; charset="iso-8859-1" Hi netters Here are the first flight reports about my KR2 with Rotax 912 80hp ULS engine Plane KR2 call sign I-KRFN ( Italy) Prop. GT 1600X1600 mm. Empty weight 283 Kg. ( 622 lbs.) Take off in 200 mt ( about 650/700 ft.) Landing full stop in 400 mt. ( 1350 ft.) no float ( Diehl tail dragger ) two point. Climb 1200 ft/min @ 70 kts Cruise 2000 ft QNH @ 75% max power, 120 kts , full trottle 140 kts ( engine overspeed) I need more prop pitch! Fuel cons. 12 Lt./hrs @ 75% No problem about pitch sensitivity Pilot is very happy :-)) Ciao Franco Negri I-KRFN Italy see my KR on www.negri.cjb.net ------------------------------ Message: 4 Date: Thu, 29 Apr 2004 05:59:47 -0400 (Eastern Standard Time) From: "Dan Heath" Subject: Re: KR> I-KRFN Rotax 912 first test To: "krnet@mylist.net" Message-ID: <4090D213.000001.02616@COMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" Congratulations, and thanks for the report. I look forward to the stories you will have to tell. Please tell us more about the lack of pitch sensitivity. Is it that it didn't bother you, or that it did not exist. If there is none, did you do something in particular to cause that? There is a time for building and a time for flying, and the time for building has long since expired. See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC KR_Dan@KR-Builder.org See you in Mt. Vernon - 2004 - KR Gathering See our EAA Chapter 242 at http://EAA242.org ------------------------------ Message: 5 Date: Thu, 29 Apr 2004 06:15:21 -0400 (Eastern Standard Time) From: "Dan Heath" Subject: Re: KR> RV grin To: "krnet@mylist.net" Message-ID: <4090D5B9.000003.02616@COMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" We've had a bunch of RV grins around here lately and they are huge. I think what makes the KR grin so much better, is the fun factor, for sure, but I am sure it has a lot to do with the enormous sense of accomplishment. The more you put into something in terms of blood sweat and tears, the greater the sense of accomplishment, when you finally get there. There is a time for building and a time for flying, and the time for building has long since expired. See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2004 - KR Gathering See our EAA Chapter 242 at http://EAA242.org ------------------------------ Message: 6 Date: Thu, 29 Apr 2004 11:18:06 +0100 From: "Serge F. Vidal" Subject: RE: KR> I-KRFN Rotax 912 first test To: "'KRnet'" Message-ID: <000701c42dd3$446a40e0$2c0101c0@ate.com> Content-Type: text/plain; charset="us-ascii" Auguri, Franco! I'm very happy for you. Your performances seem almost too good to be true. About pitch sensitivity: well, you must simply be a veeery good pilot! Ciao, and happy landings. Serge Serge Vidal KR2 ZS-WEC - Taildragger, VW powered (2.4 liter, dual electronic ignition) - Total aircraft time: 390h - Aircraft hangared at: Orleans, France - Pilot moaning in: Tunis, Tunisia E-mail: serge.vidal@ate-international.com -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net]On Behalf Of Aripo Sent: Thursday, April 29, 2004 10:10 To: krnet Subject: KR> I-KRFN Rotax 912 first test Hi netters Here are the first flight reports about my KR2 with Rotax 912 80hp ULS engine Plane KR2 call sign I-KRFN ( Italy) Prop. GT 1600X1600 mm. Empty weight 283 Kg. ( 622 lbs.) Take off in 200 mt ( about 650/700 ft.) Landing full stop in 400 mt. ( 1350 ft.) no float ( Diehl tail dragger ) two point. Climb 1200 ft/min @ 70 kts Cruise 2000 ft QNH @ 75% max power, 120 kts , full trottle 140 kts ( engine overspeed) I need more prop pitch! Fuel cons. 12 Lt./hrs @ 75% No problem about pitch sensitivity Pilot is very happy :-)) Ciao Franco Negri I-KRFN Italy see my KR on www.negri.cjb.net _______________________________________ 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: 7 Date: Thu, 29 Apr 2004 07:03:50 -0400 From: "Dana Overall" Subject: RE: KR> RV grin To: krnet@mylist.net Message-ID: Content-Type: text/plain; format=flowed >From: "Brian Kraut" >One thing I forgot on my Sun and Fun report. > >I took a demo ride in an RV-9 (no throwing rotten tomatoes at me >please, it was a free ride that I couldn't pass up). Hey Brian, why in the world did you go up for a ride in the 9? It is Van's cross country cruiser with a low compression 320. They put a different wing on it, hung a wheel off the nose and made a docile fully non aerobatic rated airframe out of it. One thing, you can put a 235 in it and cruise at a little over 150mph. You certainly picked the house cat of the fleet. Now or a more realistic comparison:-) Tracy Crook installed his new 2.85 drive on his rotary 13B in his 4 for the speed dash. Takeoff roll to finish line he averaged 216mph with a climb that pegs his 3K VSI. He had to pull the power back to avoid running past the published Vne in cruise!! Since this is what is going onto my newly arrived gold powder coated 13B (I'll post a pic sometime) with smoothed out porting, tuned dual injected six port intake I figure I just might be able to roll, loop, split S, hammerhead with the best of them and keep up with the the newly to be borne speed demon KR I'm a little familiar with:-) Brian, where were you at during the evenings. Landford (you know, the one who never smiles, curses a lot, and is going to name his airplane Grumpy:-) and I spent Friday and Saturday on the flight line, at the Corvair dinner, at Margarittaville, in the buildings, at Margarittaville, on flight line, at Margarittaville...........well you get the point:-) Had a great time back at row 20 of Antique and Classic. BTW, for those who don't know Mark. He does smile, does have a good time and I consider him to be a very good friend. Looking forward to the next hangout with him. Dana Overall 1999 & 2000 National KR Gathering host Richmond, KY i39 RV-7 slider, Imron black, "Black Magic" Finish kit 13B Rotary. Hangar flying my Dynon. http://rvflying.tripod.com/aero1.jpg http://rvflying.tripod.com/aero3.jpg http://rvflying.tripod.com/blackrudder.jpg do not archive _________________________________________________________________ Lose those love handles! MSN Fitness shows you two moves to slim your waist. http://fitness.msn.com/articles/feeds/article.aspx?dept=exercise&article=et_pv_030104_lovehandles ------------------------------ Message: 8 Date: Thu, 29 Apr 2004 07:29:02 -0400 From: "Wood, Sidney M." Subject: KR> Sun-n-Fun 2004 KR Dinner Photo To: "KRnet" Message-ID: Content-Type: text/plain; charset="iso-8859-1" Thanks! I posted that photo to http://www.krnet.org/misc/snf_kr_dinner_04.jpg , so if you want to, you can point it out to the KRnet crowd, along with a description or something. A lot of familiar faces in that photo, and I do believe it's the first time we've ever gotten an actual photograph at one of these things! I wish I could have made it. Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford Mark, Attached is a photo taken at the Sun n Fun 2004 KR-dinner hosted by Virg at Holiday Inn North. Virg commandeered Brian Kraut's cell phone, called Jeannette Rand at home and we all took turns saying hello to her. Six others left right after dinner and missed the photo, phone call and standup routines. Virg vowed this was his last Sun n Fun Dinner after 32 years and turned it all over to Brian Kraut for next year. Regards, Sid Wood, KR-2 N6242 Mechanicsville, MD sidney.wood@titan.com ------------------------------ Message: 9 Date: Wed, 28 Apr 2004 22:01:52 +1000 From: "Martindale Family" Subject: Re: KR> delaminations! To: "KRnet" Message-ID: <000101c42dde$dd8224e0$bd6ecacb@athlon2400> Content-Type: text/plain; charset="iso-8859-1" Brian I constructed my wings in a similiar way using the factory parallel grooved Divinycell foam. It allowed the foam to be formed to shape with minimal shaping/sanding and has the benefit of an internal light glass layer that is easily sealed with resin prior to installation. My skins in crosssection resemble TTTTTTTTTTTTTTTTT and are very strong albeit a little heavier. Each wing finished without ailerons came to 55 pounds including tanks. In my view, it is worth the extra money to buy good foam, like Divinycell. It doesn't collapse under finger print pressure or go to powder. Whatever foam you use seal it completely inside and out. John The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: johnjane@chc.net.au > I have thought of taking something like a thin steel ruler and putting 1/4" > deep grooves in the foam ------------------------------ Message: 10 Date: Thu, 29 Apr 2004 22:00:33 +1000 From: "Martindale Family" Subject: Re: KR> engine choices To: "KRnet" Message-ID: <003e01c42de1$94ef0380$bd6ecacb@athlon2400> Content-Type: text/plain; charset="iso-8859-1" .................That engine is a work of art. Just like our Holdens and Vegemite :-) The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: johnjane@chc.net.au ------------------------------ Message: 11 Date: Thu, 29 Apr 2004 08:33:22 -0400 From: "Wood, Sidney M." Subject: RE: KR> engine choices To: "KRnet" Message-ID: Content-Type: text/plain; charset="iso-8859-1" www.fortunecity.com/marina/anchor/270/weights.htm has a list of engines with their horsepower and weight. Sid Wood, KR-2 N6242 Mechanicsville, MD Sidney.wood@titan.com Without stirring up the debate on which engine is best for a KR, does anyone know where I can find a relatively unbiased comparison and list pros and cons for the various suitable KR engines including the VW, Corvair, Subaru, and Mazda? Brian Kraut Engineering Alternatives, Inc. www.engalt.com ------------------------------ Message: 12 Date: Thu, 29 Apr 2004 19:19:14 +0200 From: "Stephen Jacobs" Subject: KR> Dan Diehl To: "'KRnet'" Message-ID: <000801c42e0e$188c8a60$db64a8c0@homedesktop> Content-Type: text/plain; charset="us-ascii" The email Address provided on his web page does not work - does anyone have a current address for Dan I have been trying dan@cuttingedge-tech.com Thanks Steve J ------------------------------ Message: 13 Date: Thu, 29 Apr 2004 11:41:14 -0700 From: Jim Morehead Subject: Re: KR> Dan Diehl To: KRnet Message-ID: Content-Type: text/plain; charset="US-ASCII" Steve, Try Jim Morehead Cameron Park, CA on 4/29/04 10:19 AM, Stephen Jacobs at askies@microlink.zm wrote: > > The email Address provided on his web page does not work - does anyone > have a current address for Dan > > I have been trying dan@cuttingedge-tech.com > > Thanks > > Steve J > > > > > _______________________________________ > 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: 14 Date: Thu, 29 Apr 2004 14:41:58 -0500 From: larry flesner Subject: KR> flight test To: KRnet Message-ID: <3.0.6.32.20040429144158.007f53f0@pop.midwest.net> Content-Type: text/plain; charset="us-ascii" >If you have a chance anytime soon, can you do this short test - it >would close the loop on the decaulage matter. With your airplane >trimmed out "hands off" in the cruise, take of the power and note what >she does (in terms of pitch) - initially and after a few seconds. >Steve J +++++++++++++++++++++++++++++++++++++++++++++++++++++ Steve and Netters, I went AWOL from my yard work long enough this morning to run the flight test you asked for. The wind was 12-14 with G 17-19 but close enough to runway heading to take most of the excitment out of it. My friend in the Acro Sport was calling traffic as I was taxing out so he stayed in the air and I caught up to him. I told him of my intentions so as I came along side him at cruise speed and all trimmed up I brought the power quickly back to idle. I don't think I was giving any stick input other that basiclly holding it nuetral. As I brought the power back the nose simply dropped. There was no pitch-up at all. To me it felt like the nose went to a 20 degree down attitude but Bill's observation was that it was not nearly that steep. Lets call it a ballpark of 10 degrees nose down without a better measure. I'll let you interpret the results and whatever it is I'm sure there will be opinions to the contrary. The only opinion that can't be argued with is my opinion on how much fun I'm having flying my KR !! :-) 41.1hours and counting.............. Larry Flesner ------------------------------ Message: 15 Date: Thu, 29 Apr 2004 22:45:35 +0200 From: "Dene Collett \(SA\)" Subject: KR> antennae +Microair To: "krnet" Message-ID: <002601c42e2e$108f0c00$37e5fea9@telkomsa127179> Content-Type: text/plain; charset="iso-8859-1" Hi guys Thanks to those that replied to my query regarding the Microair radio--much appreciated. my next question is about the antennae. I will be using a dipole as described in my last post but was wondering what effect mounting the leg that the screen of the co-ax is soldered to horizontally will have over mounting it 180deg opposed to the driven element. I know one of the replies described an installation like this but I would like to know what the theoretical difference is since I have the space to mount it either way. I have a book titled "understanding and repairing CB radios" by Lou Franklin in which a chapter deals with various different types of antennae but only shows the dipole 180deg opposed. One good tip it gives is to use 10-12 turns of the co-ax feeder wrapped in a coil about 6"-8" (for CB freq I would imagine) just before the antennae. Has the same effect as the "balun" used in Mark L's install but I guess it weighs ten times as much also. The dimensions for the Microair M760 are on the Spruce websight but I can't seem to find dimensions for the transponder(depth behind panel), Anyone. Dene Collett KR2S-RT builder Port Elizabeth South Africa mailto: dene.collett@telkomsa.net P.S: checkout www.whisperaircraft.com ------------------------------ Message: 16 Date: Thu, 29 Apr 2004 17:30:17 -0500 From: larry flesner Subject: : KR> flight test To: KRnet Message-ID: <3.0.6.32.20040429173017.007d9b10@pop.midwest.net> Content-Type: text/plain; charset="us-ascii" > >As I brought the power back the nose simply dropped. >Larry Flesner +++++++++++++++++++++++++++++++++++++++++++++++++++ I guess I should have given some additional info. My KR is basiclly plans built except it is 24"s longer than plans. I was probably in the mid C.G.range +/- and inch or so. Larry Flesner ------------------------------ Message: 17 Date: Fri, 30 Apr 2004 00:37:37 +0200 From: "Stephen Jacobs" Subject: RE: KR> Dan Diehl To: "'KRnet'" Message-ID: <000a01c42e3a$9634cc80$c764a8c0@homedesktop> Content-Type: text/plain; charset="us-ascii" Steve, ry Jim Morehead ................................. Thank you Steve ------------------------------ Message: 18 Date: Thu, 29 Apr 2004 15:48:34 -0700 (PDT) From: Dennis Mingear Subject: Re: KR> antennae +Microair To: KRnet Message-ID: <20040429224834.83016.qmail@web12609.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii A dipole antenna is most efficient when the ends are at 180 degrees from one another. Hams use an antenna called an inverted V to get the antenna to fit in their backyards. Folding the antenna this way will affect its perfoamance some but not a lot. The closer you bring the ends together the more inefficient the antenna will become. But a 90 degree seperation is acceptable, you may have to retune it slightly to optimize its performance, but this should be no big deal. Type 'inverted V antenna's' into your search engine and you'll see plenty of theory as well as actual use info on this type of radiator. Denny ... The Lurker! "Dene Collett (SA)" wrote: Hi guys Thanks to those that replied to my query regarding the Microair radio--much appreciated. my next question is about the antennae. I will be using a dipole as described in my last post but was wondering what effect mounting the leg that the screen of the co-ax is soldered to horizontally will have over mounting it 180deg opposed to the driven element. I know one of the replies described an installation like this but I would like to know what the theoretical difference is since I have the space to mount it either way. I have a book titled "understanding and repairing CB radios" by Lou Franklin in which a chapter deals with various different types of antennae but only shows the dipole 180deg opposed. One good tip it gives is to use 10-12 turns of the co-ax feeder wrapped in a coil about 6"-8" (for CB freq I would imagine) just before the antennae. Has the same effect as the "balun" used in Mark L's install but I guess it weighs ten times as much also. The dimensions for the Microair M760 are on the Spruce websight but I can't seem to find dimensions for the transponder(depth behind panel), Anyone. Dene Collett KR2S-RT builder Port Elizabeth South Africa mailto: dene.collett@telkomsa.net P.S: checkout www.whisperaircraft.com _______________________________________ to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html --------------------------------- Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs ------------------------------ Message: 19 Date: Fri, 30 Apr 2004 01:02:00 +0200 From: "Stephen Jacobs" Subject: RE: : KR> flight test To: "'KRnet'" Message-ID: <000c01c42e3d$fe088330$c764a8c0@homedesktop> Content-Type: text/plain; charset="us-ascii" >As I brought the power back the nose simply dropped. >Larry Flesner +++++++++++++++++++++++++++++++++++++++++++++++++++ I guess I should have given some additional info. My KR is basiclly plans built except it is 24"s longer than plans. I was probably in the mid C.G.range +/- and inch or so. Larry Flesner .................................................. Thanks Larry - much appreciated Steve ------------------------------ Message: 20 Date: Fri, 30 Apr 2004 02:14:32 +0000 From: "orma" Subject: Re: KR> antennae +Microair To: KRnet Message-ID: <20040430021433.19609.qmail@host203.com> Content-Type: text/plain; charset="iso-8859-1" Jim Weir of RST engineering has written a booklet that he sells for $5 USD. In it he discussed everything you need to make antenna for aircraft. The articles are not published on the web. His web site, where you can order the booklet is www.rst-engr.com As far as I know all VOR antenna are V pole antenna. I think that the V is significant, though I'm not qualified in Radio electronics. All of the antenna sold by the verious aviation suppliers seem to be of that shape. I think that you were asking if the balun has to be vertical or can it be horizontal. my copper foil antenna is glued to the bottom exterior of my fuselage and the balun is laying on the bottom skin on the interior, without reguard to orientation. It seems to work ok. Orma ------------------------------ Message: 21 Date: Thu, 29 Apr 2004 19:18:09 -0700 (PDT) From: Dennis Mingear Subject: Re: KR> antennae +Microair To: orma , KRnet Message-ID: <20040430021809.49889.qmail@web12601.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii There is quite abit of stuff on the web. Search Ham sites, they are loaded with pertinent information. Aviation antennas aren't any differnt than any other com antenna. Denny ... orma wrote: Jim Weir of RST engineering has written a booklet that he sells for $5 USD. In it he discussed everything you need to make antenna for aircraft. The articles are not published on the web. His web site, where you can order the booklet is www.rst-engr.com As far as I know all VOR antenna are V pole antenna. I think that the V is significant, though I'm not qualified in Radio electronics. All of the antenna sold by the verious aviation suppliers seem to be of that shape. I think that you were asking if the balun has to be vertical or can it be horizontal. my copper foil antenna is glued to the bottom exterior of my fuselage and the balun is laying on the bottom skin on the interior, without reguard to orientation. It seems to work ok. Orma _______________________________________ to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html --------------------------------- Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs ------------------------------ Message: 22 Date: Thu, 29 Apr 2004 22:14:22 -0400 From: Joseph H Horton Subject: Re: KR> antennae +Microair To: krnet@mylist.net Message-ID: <20040429.221423.-85067.0.joe.kr2s.builder@juno.com> Content-Type: text/plain > Thanks to those that replied to my query regarding the Microair > radio--much > appreciated. > > The dimensions for the Microair M760 are on the Spruce websight but > I can't > seem to find dimensions for the transponder(depth behind panel), Dean, Transponder is 2 1/2" x 2 1/2" x 6" plus at least 1 more inch for wiring harness straight out the back. Joe Horton Coopersburg, Pa. joe.kr2s.builder@juno.com ------------------------------ Message: 23 Date: Thu, 29 Apr 2004 22:21:31 -0400 From: "Kenneth B. Jones" Subject: Re: KR> antennae +Microair To: "orma" , "KRnet" Message-ID: <008001c42e59$da65acc0$8d7ba8c0@oemcomputer> And for $29, you can get the booklet and all the material for more antennae than you'll ever need in an airplane. Ken ----- Original Message ----- From: "orma" To: "KRnet" Sent: Thursday, April 29, 2004 10:14 PM Subject: Re: KR> antennae +Microair > > > Jim Weir of RST engineering has written a booklet that he sells for $5 USD. In it he discussed everything you need to make antenna for aircraft. The articles are not published on the web. His web site, where you can order the booklet is www.rst-engr.com > As far as I know all VOR antenna are V pole antenna. I think that the > V is significant, though I'm not qualified in Radio electronics. All of the antenna sold by the verious aviation suppliers seem to be of that shape. I think that you were asking if the balun has to be vertical or can it be horizontal. my copper foil antenna is glued to the bottom exterior of my fuselage and the balun is laying on the bottom skin on the interior, without reguard to orientation. It seems to work ok. > > Orma > _______________________________________ > 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: 24 Date: Thu, 29 Apr 2004 19:23:32 -0700 (PDT) From: Dennis Mingear Subject: Re: KR> antennae +Microair To: orma , KRnet Message-ID: <20040430022332.50615.qmail@web12601.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii Correct Orma the balun doesn't care about orientation. The mildly folded dipole that we are discussing here will work fine. The folding affects the radiation pattern, impedance and therefore the effeciency of the antenna, but a 90 degree fold is not a real big deal. Set the antenna up outside the airplane and connect your handheld to it and do some com checks, you'll be surprised. Denny ... orma wrote: Jim Weir of RST engineering has written a booklet that he sells for $5 USD. In it he discussed everything you need to make antenna for aircraft. The articles are not published on the web. His web site, where you can order the booklet is www.rst-engr.com As far as I know all VOR antenna are V pole antenna. I think that the V is significant, though I'm not qualified in Radio electronics. All of the antenna sold by the verious aviation suppliers seem to be of that shape. I think that you were asking if the balun has to be vertical or can it be horizontal. my copper foil antenna is glued to the bottom exterior of my fuselage and the balun is laying on the bottom skin on the interior, without reguard to orientation. It seems to work ok. Orma _______________________________________ to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html --------------------------------- Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 346, Issue 49 ************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================