From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 62 Date: 8/7/2004 8:59:46 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: N56ML (Stephen Jacobs) 2. O200 prop (GavinandLouise) 3. Re: O200 prop (StRaNgEdAyS) 4. Re: KR-2 (sort of) on e-bay (Dan Heath) 5. (no subject) (patrusso) 6. Re: N56ML (Mark Langford) 7. Re: N56ML / Tiny Tach (Wesley Scott) 8. Re: N56ML / Tiny Tach (Mark Langford) 9. RE: N56ML/ Tablet PC (Steve Glover) 10. Re: N56ML / Tiny Tach (Mark Langford) 11. Days (Pat Driscoll) 12. Re: Days (Mark Jones) 13. KR2S Sport pilot eligible??? (Wesley Scott) 14. Re: KR2S Sport pilot eligible??? (Dan Heath) 15. KR2S Stretch (Dick Goff) 16. Re: O200 prop (jscott.pilot@juno.com) 17. Re: N56ML / Tiny Tach (Dick Goff) 18. Re: O200 prop (Kenneth B. Jones) ---------------------------------------------------------------------- Message: 1 Date: Sat, 7 Aug 2004 09:03:48 +0200 From: "Stephen Jacobs" Subject: RE: KR> N56ML To: "'KRnet'" Message-ID: <000001c47c4c$b64af160$9f64a8c0@home> Content-Type: text/plain; charset="us-ascii" Really nice panel Mark - going to be a pleasure to X country. I am curious as to your chosen location for the engine controls - centred in front of the pilot? No doubt there is a reason(s). We take the trouble to install a second stick and set of rudder pedals, so I never could see the rationale behind placing the engine controls out of the co-pilot's reach on the extreme left, we mostly fly with our left hand anyway (in the store bought birds). Maybe you opted to have it both ways - all three ways eh? Pilot can fly either left or right handed and the right seat can reach everything Ok? Have a great weekend Steve J ------------------------------ Message: 2 Date: Sat, 7 Aug 2004 17:32:12 +1000 From: "GavinandLouise" Subject: KR> O200 prop To: "KR builders and pilots" Message-ID: <001701c47c50$a7b680c0$0100000a@vic.bigpond.net.au> Content-Type: text/plain; charset="Windows-1252" C'mon all you Aussie builders you're a bit slow!!!! LOL! I can't believe that last night while thinking about what rego mark I'll use I checked the CASA site, and there is only one VH-KR registration mark left. So VH-KRD it will be! So I've emailed CASA to hold it for me. VH-KRD was the mark used by a good friend of mine when he built his KR many years ago, he sold the aircraft and the new owner re-registered it in the ultralight category. Not long after that the new owner crashed at low altitude in a tight turn and from information of witnesses it has been speculated that he stalled at high speed, Unfortunately it was a fatal accident. My friend who built this KR is also helping me with information on my project, he also makes propellers. I've just overhauled an O200 Continental for it, and am wondering what the final prop selection any of you using them have come up with is?? I've checked the archives but the information on there is mostly speculation of what people are going to use. Thanks Gav KR2S 14" stretch 2" stretch in front of foreword spar 40" wide at shoulders Tri gear Balanced tail feathers Dual controls Cobra arrow canopy New airfoil design Pending VH-KRD ------------------------------ Message: 3 Date: Sat, 7 Aug 2004 18:38:00 +1000 From: "StRaNgEdAyS" Subject: Re: KR> O200 prop To: "KRnet" Message-ID: <02cf01c47c59$e1c31a90$0101a8c0@server> Content-Type: text/plain; charset="iso-8859-1" There are a few 19-XXXX registered KRs here though and mine will be no exception. Cheers. Peter Bancks strangedays@dodo.com.au http://www.homebuiltairplanes.com http://canardaviationforum.dmt.net ----- Original Message ----- From: "GavinandLouise" To: "KR builders and pilots" Sent: Saturday, August 07, 2004 5:32 PM Subject: KR> O200 prop > C'mon all you Aussie builders you're a bit slow!!!! LOL! I can't > believe that last night while thinking about what rego mark I'll use I checked the CASA site, and there is only one VH-KR registration mark left. So VH-KRD it will be! > So I've emailed CASA to hold it for me. > VH-KRD was the mark used by a good friend of mine when he built his KR many years ago, he sold the aircraft and the new owner re-registered it in the ultralight category. > Not long after that the new owner crashed at low altitude in a tight > turn and from information of witnesses it has been speculated that he stalled at high speed, Unfortunately it was a fatal accident. > My friend who built this KR is also helping me with information on my project, he also makes propellers. > I've just overhauled an O200 Continental for it, and am wondering what > the final prop selection any of you using them have come up with is?? I've checked the archives but the information on there is mostly speculation of what people are going to use. > > Thanks > Gav > > KR2S > 14" stretch > 2" stretch in front of foreword spar > 40" wide at shoulders > Tri gear > Balanced tail feathers > Dual controls > Cobra arrow canopy > New airfoil design > > Pending VH-KRD > _______________________________________ > 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: 4 Date: Sat, 7 Aug 2004 05:49:31 -0400 (Eastern Standard Time) From: "Dan Heath" Subject: Re: KR> KR-2 (sort of) on e-bay To: "krnet@mylist.net" Message-ID: <4114A5AB.000003.00464@COMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" Another example of why you DON'T put these retracts on the KR. If you buy one with one on it, replace it. "There is a time for building and a time for GOING TO THE GATHERING, and the time for building has long since expired." See you in Mt. Vernon - 2004 - KR Gathering http://KRGathering.org See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC -------Original Message------- From: Wesley Scott; KRnet Date: 08/06/04 22:23:49 To: krnet Subject: KR> KR-2 (sort of) on e-bay http://cgi.ebay.com/ebaymotors/ws/eBayISAPI dll?ViewItem&rd=1&item=2485812241&category=63679 This plane is in the middle of being converted from conventional to tri-gear after groundlooping on the first test flight two years ago. Wouldn't the FAA require a reinspection for a plane that has had that type of modification? -- wesley scott kr2@spottedowl.biz _______________________________________ 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: 5 Date: Sat, 7 Aug 2004 06:27:38 -0400 From: "patrusso" Subject: KR> (no subject) To: Cc: KRnet Message-ID: <002201c47c69$307375e0$97b272d8@3z4xt01> Content-Type: text/plain; charset="iso-8859-1" patrusso @ sover.net is interested in any info you get about retractable gear. Could you forward what you get? My snail mail is Pat Russo, 1062 South Road, Bradford, Vermont 05033,.. if info is not practible to e-mail. My 3rd KR has just moved to the airport for taxi tests and during the winter I wish to go retractable,.... with tail wheel. Thanks. Pat ------------------------------ Message: 6 Date: Sat, 7 Aug 2004 09:27:15 -0500 From: "Mark Langford" Subject: Re: KR> N56ML To: "KRnet" Message-ID: <022401c47c8a$a370b460$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" Stehen Jacobs wrote: > Really nice panel Mark - going to be a pleasure to X country. That Apollo MX20 is really just a photo to cover up the big blank spot in the panel, which is reserved for something similar, but tablet-PC based. I'm not sure they make such a thing yet, but I'm sure it's coming soon. Or maybe even a Dynon. In the meantime, I'll velcro my GPS-195 in that spot. > Maybe you opted to have it both ways - all three ways eh? Pilot can > fly either left or right handed and the right seat can reach > everything Ok? I guess that's about right. Although I'm technically left-handed, writing is about the only thing that I really dedicate one particular hand to. Most of the time I just use whichever one is most convenient. I didn't want to put a bunch of holes in the panel moving the throttle and mixture around 'til I figured out where I wanted it, so I whipped up that little bracket down there to mount them to for now. I've tried it out and it works so well I may just leave them there. The stick can't hit either of them. I'll probably paint it next time I paint something that color, or lay up some scrap carbon fiber on it to make it look nice. But ergonomically, it gives me a lot of versatility, and passenger access was also a consideration. My original plan was to put them over to the left, under the Tiny Tach and trim position indicator. That would work too, and I may still put them there eventually, but for now, the bracket works. By the way, I never could get the Tiny Tach (my THIRD one) to read anything but gibberish. One minute it's almost accurate, five seconds later it's reading triple what it should, then twice, then 1.3x, etc. It's not even linear or a proportional reading of real engine speed. It's useless in my plane, despite doing everything the manufacturer can think of to make it work, and despite the ads which say "works with any points and distributor system". I've bought and paid for three of them now, and have nothing but an expensive hour meter in my panel to show for it...and it doesn't even read tenths of an hour... Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford ------------------------------ Message: 7 Date: Sat, 7 Aug 2004 10:17:28 -0500 From: "Wesley Scott" Subject: Re: KR> N56ML / Tiny Tach To: "KRnet" Message-ID: <002801c47c91$a88d2120$7ea70a04@pbrain> Content-Type: text/plain; charset="iso-8859-1" Connect the input to an o-scope. Remember the coil and capacitor act as an oscillator. If the spark plugs are not easy to fire (possibly gapped too wide or fouled), there will be multiple peaks in the voltage. It is a design feature, if the plug doesn't fire on the first peak, it might fire on the second, third, etc. Reminds me of a class project some other students were doing in a mechatronics class I took. They were trying to do timing adjustment with RPM using a signal from the distributor that was measured using a Motorola 68HC11 microcontroller. Their system worked perfectly using a signal generator to generate the input, but when they hooked it up to the test distributor the signal was to noisy to use. -- wesley scott kr2@spottedowl.biz > > By the way, I never could get the Tiny Tach (my THIRD one) to read anything > but gibberish. One minute it's almost accurate, five seconds later > it's reading triple what it should, then twice, then 1.3x, etc. It's > not even linear or a proportional reading of real engine speed. It's > useless in my plane, despite doing everything the manufacturer can > think of to make it work, and despite the ads which say "works with > any points and distributor system". I've bought and paid for three of > them now, and have nothing but an expensive hour meter in my panel to > show for it...and it doesn't even read tenths of an hour... > > Mark Langford, Huntsville, Alabama > N56ML "at" hiwaay.net > see KR2S project at http://home.hiwaay.net/~langford ------------------------------ Message: 8 Date: Sat, 7 Aug 2004 11:12:08 -0500 From: "Mark Langford" Subject: Re: KR> N56ML / Tiny Tach To: "KRnet" Message-ID: <024501c47c99$4a730930$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" Wesley Scott wrote: > Connect the input to an o-scope. Remember the coil and capacitor act > as an > oscillator. If the spark plugs are not easy to fire (possibly gapped > too wide or fouled), there will be multiple peaks in the voltage. It > is a design feature, if the plug doesn't fire on the first peak, it > might fire on > the second, third, etc. My plugs are brand new and are properly gapped, and I'm using some of the best plug wires money can buy. The Tiny Tach guy is at the end of his rope trying to figure out why it won't work with my engine. I'd think it would be easy to make it read accurately, since the pickup is inductive, in the form of a solid copper wire that wraps around ONE plug wire, and I have it installed several inches away from any other plug wire. The ratio of spark signal to noise should be huge, so therefore easy to separate. He had me build a resistive network to get the second unit to work (and I even incorporated a potentiometer so I could cover the whole range of possibilities) and it would either work erratically or shut down entirely and go back to hour meter mode. The third one is something he calls the "X" which has some sort of filtering in it. Same results as before...totally erratic. I give up on it... Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford ------------------------------ Message: 9 Date: Sat, 7 Aug 2004 16:09:29 -0700 From: "Steve Glover" Subject: RE: KR> N56ML/ Tablet PC To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" Hi Mark, Check out the Fujutsu Stylistic LT-C 500 or 600. I have one here and am considering swapping out the IPAQ in the KR. I have the Anywhere Map GPS software for Windows XP Tablet version installed. I'm still testing it but may bring it to the Gathering. Regards, Steve Glover KR-2 N902G AJO, Ca. ------------------------------ Message: 10 Date: Sat, 7 Aug 2004 18:25:05 -0500 From: "Mark Langford" Subject: Re: KR> N56ML / Tiny Tach To: "KRnet" Message-ID: <028301c47cd5$c5c3d380$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" I wrote: > I give up on it... Well, I tried one more thing, and it worked! I wrapped the "connection" in aluminum foil and grounded it, in an effort to shield it from EMI, and now it's accurate from idle to top RPM. I'll replace the foil with a nice copper braid and run a wire to ground, so I guess I'm finally happy with it. I always wondered why people had trouble with something as simple as a tach, and now I know. I learned a lot about my engine today, running it filtered, unfiltered, cowled, and uncowled, and taking photos of the EGT, CHT, MAP, and other readings from the EIS.. The most important achievement was getting the manifold pressure sensor working. I have a .9" MAP loss at wide open throttle, which ain't half bad. I wouldn't hesitate to fly behind this engine right now... Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford ------------------------------ Message: 11 Date: Sat, 7 Aug 2004 18:45:20 -0500 From: "Pat Driscoll" Subject: KR> Days To: "KR Mailing list" Message-ID: <001a01c47cd8$9a9ee020$428dd440@oemcomputer> Content-Type: text/plain; charset="iso-8859-1" Mark, Help. I'm having a hard time remembering how many days left till the Gathering. (I sure don't want to miss it). Pat Driscoll patrick36@usfamily.net Saint Paul, MN ------ http://USFamily.Net/info - Unlimited Internet - From $8.99/mo! ------ ------------------------------ Message: 12 Date: Sat, 7 Aug 2004 18:51:20 -0500 From: "Mark Jones" Subject: Re: KR> Days To: "KRnet" Message-ID: <004b01c47cd9$7076d540$6401a8c0@wi.rr.com> Content-Type: text/plain; charset="iso-8859-1" You better not miss it Pat, cause if you do, you will be kicking your own arse for a whole year. Man it' just 47 more days. Sure do wish I was going to be able to fly my KR there. Mark Jones (N886MJ) Wales, WI USA E-mail me at flykr2s@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ----- Original Message ----- From: "Pat Driscoll" To: "KR Mailing list" Sent: Saturday, August 07, 2004 6:45 PM Subject: KR> Days > Mark, Help. > I'm having a hard time remembering how many days left till the Gathering. (I sure don't want to miss it). > Pat Driscoll > patrick36@usfamily.net > Saint Paul, MN > > > ------ http://USFamily.Net/info - Unlimited Internet - From $8.99/mo! ------ > _______________________________________ > 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: 13 Date: Sat, 7 Aug 2004 20:03:31 -0500 From: "Wesley Scott" Subject: KR> KR2S Sport pilot eligible??? To: "krnet" Message-ID: <03d901c47ce3$8933cbb0$7ea70a04@pbrain> Content-Type: text/plain; charset="iso-8859-1" I've been looking at the sport pilot standard. To be a light sport aircraft you have to meet the following criteria for an airplane since its original certification: 1) Max takeoff weight 1320 pounds (600 kg) 2) Max airspeed in level flight with maximum continuous power (VH) of not more than 120 knots CAS under standard atmospheric conditions at sea level. 3) Max stalling speed or minimum steady flight speed without the use of lift-enhancing devices (VS1) of not more than 45 knots CAS at the aircraft's maximum certificated takeoff weight and most critical center of gravity. 4) a maximum seating capacity of no more than two persons, including the pilot 5) a single, reciprocating engine, if powered 6) a fixed or ground-adjustable propellor 7) a nonpressurized cabin, if equipped with a cabin 8) fixed landing gear The only criteria that are not obviously passed (with the fixed gear version) are the VH and VS1. VS1 45 knots translates to 51.785 mph. the RR website says the KR2 and 2S stall at 52. My calculations indicate 51.5 for 900 pounds using a CL value of 1.7. (The CL value was computed based on weight, wing areas, and stall speeds posted on the RR website.) At a gross weight of 1050 lbs, Bill Marcy computed a stall speed of 59.1 mph based on a maximum lift coefficient of 1.454 for the RAF48 airfoil. The new airfoils have a CLmax value between 1.15 and 1.28 (http://www.krnet.org/as504x/design.html). The old airfoil has an advantage of a higher CLmax translating to a lower stall speed. Can anyone confirm that their plane will actually fly at the 45 knot limit? VH Many posts have stated the 200 mph number RR publishes is unrealistic and a few indicating it is possible to reach 200 with a big engine and lots of drag reduction. Can we get some actual numbers from people flying behind VW engines? I expect the Corvair and O-200 planes probably have too much power to be limited to 120 knots. If your plane does meet light sport aircraft spec with a VW, installing a Corvair and finding out you fly too fast would permanently remove you from the LSA category even if you reinstalled a VW. -- wesley scott kr2@spottedowl.biz ------------------------------ Message: 14 Date: Sat, 7 Aug 2004 21:58:47 -0400 (Eastern Standard Time) From: "Dan Heath" Subject: Re: KR> KR2S Sport pilot eligible??? To: "krnet@mylist.net" Message-ID: <411588D7.000003.01528@COMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" Wesley, Put in a 1700cc engine and build it as light as possible and you might get the stall speed down. No problem getting the VH with that power plant. Don't even think about it with the bigger engines. But why not build one that is designed for that in the first place. "There is a time for building and a time for GOING TO THE GATHERING, and the time for building has long since expired." See you in Mt. Vernon - 2004 - KR Gathering http://KRGathering.org See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC ------------------------------ Message: 15 Date: Sat, 7 Aug 2004 21:30:07 -0500 From: dcgoff@webtv.net (Dick Goff) Subject: KR> KR2S Stretch To: krnet@mylist.net (KRnet) Message-ID: <21893-4115902F-1306@storefull-3315.bay.webtv.net> Content-Type: Text/Plain; Charset=US-ASCII Hi Netters, I want to buy, or complete a KR2S project that has been "STRETCHED" as follows: 4" forward of the front spar, 14" aft of the rear spar, cabin width of 40" (inside), and raised 3". Are any available? Dick Goff dcgoff@webtv.net ------------------------------ Message: 16 Date: Sat, 7 Aug 2004 20:27:31 -0600 From: jscott.pilot@juno.com Subject: Re: KR> O200 prop To: krnet@mylist.net Message-ID: <20040807.203732.736.0.jscott.pilot@juno.com> Content-Type: text/plain; charset=us-ascii On Sat, 7 Aug 2004 17:32:12 +1000 "GavinandLouise" writes: > I've just overhauled an O200 Continental for it, and am wondering > what the final prop selection any of you using them have come up > with is?? I've checked the archives but the information on there is > mostly speculation of what people are going to use. > > Thanks > Gav > Mine is 68" diameter by 66 pitch and is designed to keep me under the 2750 redline unless diving. Jeff Scott ________________________________________________________________ The best thing to hit the Internet in years - Juno SpeedBand! Surf the Web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! ------------------------------ Message: 17 Date: Sat, 7 Aug 2004 21:38:39 -0500 From: dcgoff@webtv.net (Dick Goff) Subject: Re: KR> N56ML / Tiny Tach To: krnet@mylist.net (KRnet) Message-ID: <21891-4115922F-3384@storefull-3315.bay.webtv.net> Content-Type: Text/Plain; Charset=US-ASCII Hi Netters, I want to buy, or build a KR2S that has been "Stretched" as follows: 4" forward of the front spar,14" aft of the rear spar, 40" inside cockpit width, and 3" turtle deck height. Are any available ? Dick Goff dcgoff@webtv.net ------------------------------ Message: 18 Date: Sat, 7 Aug 2004 23:17:15 -0400 From: "Kenneth B. Jones" Subject: Re: KR> O200 prop To: "KRnet" Message-ID: <004801c47cf6$34e553e0$647ba8c0@oemcomputer> Don't know if this will be useful, but I have an A65 (65 HP @ 2300 rpm) with a 58" 3 blade (tapered) Warp Drive set at 64.5 " pitch. It turns 2200 static and 2300 full throttle straight & level. Ken Jones > > On Sat, 7 Aug 2004 17:32:12 +1000 "GavinandLouise" > writes: > > > I've just overhauled an O200 Continental for it, and am wondering > > what the final prop selection any of you using them have come up > > with is?? I've checked the archives but the information on there is > > mostly speculation of what people are going to use. > > > > Thanks > > Gav ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 346, Issue 62 ************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================