From: To: Subject: krnet Digest 6 Aug 2000 22:25:15 -0000 Issue 70 Date: Sunday, August 06, 2000 2:25 PM krnet Digest 6 Aug 2000 22:25:15 -0000 Issue 70 Topics (messages 1529 through 1558): local KRs 1529 by: Timothy Brown 1531 by: ACMan5548.aol.com Re: Havelock Flying Club annual fly-in 1530 by: ACMan5548.aol.com 1533 by: Gaston Landry engine 1532 by: Paul Gangemi Re: Dynel 1534 by: Krwr1.aol.com 1535 by: Forrest Erickson 1536 by: George Allen 1537 by: George Allen 1547 by: Frank Ross Re: Will it fly 1538 by: B&B Muse prop database? 1539 by: Mark Langford 1544 by: Mark Langford 1545 by: George 1548 by: Mark Langford 1549 by: Frank Ross 1550 by: George 1551 by: Mark Langford kr's at barnstormers 1540 by: Gaston Landry 1542 by: Floyd Dickinson 1546 by: Frank Ross Re: spinners 1541 by: GARYKR2.cs.com prop question 1543 by: Mark Langford WAR replicas plans 1552 by: Bruce Watkins Re: prob database 1553 by: Floyd Dickinson Re: ASI calibration 1554 by: Ross Youngblood 1555 by: Gaston Landry dynel vs f/g 1556 by: shannon spurgeon Re: Polimeric materials for KR 1557 by: Ross Youngblood Re: "inspectors"of experimentals 1558 by: Ross Youngblood Administrivia: To subscribe to the digest, e-mail: To unsubscribe from the digest, e-mail: To post to the list, e-mail: ---------------------------------------------------------------------- Date: Sat, 5 Aug 2000 18:20:49 -0700 (PDT) To: Group KR NET From: Timothy Brown Subject: local KRs Message-ID: <20000806012049.3777.qmail@web616.mail.yahoo.com> Am planning on starting construction this year on a KR2S, but would like to see (and perhaps sit in) a KR2 or KR2s before then. I live in So. Calif's Inland Empire. Those of you near know what I mean. Anyone willing to show me there plane? Save the net some use and re-mail to timwbrown@yahoo.com. Thanks much, Tim __________________________________________________ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/ ------------------------------ Date: Sat, 5 Aug 2000 21:35:12 EDT To: timwbrown@yahoo.com, krnet@mailinglists.org (krnet user group) From: ACMan5548@aol.com Subject: Re: KR> local KRs Message-ID: There is a KR2 at Rand Robinson in Huntington Beach that you can sit in. It is an old one that has seen better days but is available all the time. There are a couple of KR2S guys at Chino building. I believe Mike M. is one. ------------------------------ Date: Sat, 5 Aug 2000 21:29:57 EDT To: g_landry73@hotmail.com, krnet@mailinglists.org (krnet user group) From: ACMan5548@aol.com Subject: Re: KR> Havelock Flying Club annual fly-in Message-ID: <74.1d6e071.26be1995@aol.com> Where is Moncton??? ------------------------------ Date: Sat, 05 Aug 2000 22:49:58 ADT To: krnet@mailinglists.org From: "Gaston Landry" Subject: Re: KR> Havelock Flying Club annual fly-in Message-ID: <20000806014958.19430.qmail@hotmail.com> as I had said, in New Brunswick, Canada. About 3 hours from the Maine border. >From: ACMan5548@aol.com >To: g_landry73@hotmail.com, krnet@mailinglists.org (krnet user group) >Subject: Re: KR> Havelock Flying Club annual fly-in >Date: Sat, 5 Aug 2000 21:29:57 EDT > >Where is Moncton??? ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ------------------------------ Date: Sat, 5 Aug 2000 21:46:50 -0400 (EDT) To: krnet@mailinglists.org From: paulwasp@webtv.net (Paul Gangemi) Subject: engine Message-ID: <27730-398CC38A-3661@storefull-164.iap.bryant.webtv.net> Hapi 1834cc V/W rated @ 60 hp. Oil cooler mounted on top,Slick mag, prophub, baffling, Posa carb., stacks, starter, accessary case,4 new plugs, plug wires . 628 hrs. TT, 48 since O/H., with papers....$2,000 negotiable.Picture available. ( My son will e-mail , as I don't as yet have the means to do it .) ------------------------------ Date: Sat, 5 Aug 2000 22:43:24 EDT To: mikemims@home.com From: Krwr1@aol.com CC: krnet@mailinglists.org Subject: Re: KR> Dynel Message-ID: In a message dated 08/05/2000 12:43:03 PM Eastern Daylight Time, mikemims@home.com writes: << Go for a ride and ask for a 180 mph high speed pass and look out at the wings. Yes stronger material is desired. Does fiberglass really bother ones skin or is it the epoxy? >> I made a lot of high speed passes over 200 mph, and never had any trouble with my wings, that were made of Dynel. If you have trouble with Dynel, you are not building them right. Bill krwr1@aol.com Youngstown Ohio 1500 hrs in a KR1 ------------------------------ Date: Sun, 06 Aug 2000 08:23:59 -0400 To: Krwr1@aol.com From: Forrest Erickson CC: mikemims@home.com, krnet@mailinglists.org Subject: Re: KR> Dynel Message-ID: <398D58DF.D87CE8AB@icx.net> --------------F069B4CD765AFD1F40AC1B54 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Ok, a real basic question here. What is Dynel? Forrest Erickson Krwr1@aol.com wrote: > In a message dated 08/05/2000 12:43:03 PM Eastern Daylight Time, > mikemims@home.com writes: > > << > Go for a ride and ask for a 180 mph high speed pass and look out at the > wings. Yes stronger material is desired. Does fiberglass really bother > ones skin or is it the epoxy? > >> > I made a lot of high speed passes over 200 mph, and never had any trouble > with my wings, that were made of Dynel. If you have trouble with Dynel, you > are not building them right. > > Bill > > krwr1@aol.com > Youngstown Ohio > 1500 hrs in a KR1 > > --------------------------------------------------------------------- > To post to the list, email: krnet@mailinglists.org > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > For additional commands, e-mail: krnet-help@mailinglists.org --------------F069B4CD765AFD1F40AC1B54-- ------------------------------ Date: Sun, 6 Aug 2000 10:15:40 -0400 To: , "IVAN" , "Mark Langford" , "Matthew McCarthy" , "Ronso Group" , "saunders" , , "Suk Hi Ross" , , "Ross Youngblood" , , From: "George Allen" Subject: Re: Dynel Message-ID: <000a01bfffb0$cdfe8640$32a7dcd8@george> ------=_NextPart_000_0007_01BFFF8F.459D34C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hey group, checkout this article on the web about Dynel. I found it in = about 10 seconds. http://www.britannica.com/seo/m/modacrylic/ Good flying, George Allen ------=_NextPart_000_0007_01BFFF8F.459D34C0-- ------------------------------ Date: Sun, 6 Aug 2000 10:21:28 -0400 To: , "IVAN" , "Mark Langford" , "Matthew McCarthy" , "Ronso Group" , "saunders" , , "Suk Hi Ross" , , "Ross Youngblood" , , From: "George Allen" Subject: Dynel Message-ID: <001b01bfffb1$9d8cae00$32a7dcd8@george> ------=_NextPart_000_0018_01BFFF90.14F160C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Found a better reference = http://www.guillemot-kayaks.com/KBbbsOld/1916.shtml George A. ------=_NextPart_000_0018_01BFFF90.14F160C0-- ------------------------------ Date: Sun, 6 Aug 2000 12:36:19 -0700 (PDT) To: krnet@mailinglists.org From: Frank Ross Subject: Dynel Message-ID: <20000806193619.19844.qmail@web4705.mail.yahoo.com> Thanks to all of you for your help on my questions on Dynel. Should have thought about boat-building resources and the good old encyclopedia. Thanks again! ===== Frank Ross, San Antonio, TX, __________________________________________________ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/ ------------------------------ Date: Sun, 06 Aug 2000 10:19:14 -0500 To: AviationMech@aol.com From: B&B Muse CC: klw1953@juno.com, krnet@mailinglists.org Subject: Re: KR> Will it fly Message-ID: <398D81F1.8179C643@ev1.net> --------------4920FC5C4CFA64487CF851E7 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit AviationMech@aol.com wrote: > In a message dated 8/3/00 8:14:29 PM Eastern Daylight Time, klw1953@juno.com > writes: > > > I have a 54X50 on my 2100 Revmaster and I also turn 3k static. > I have a 54X42 Sterba Full blade > Orma I have a 52x50 on my 2100D Revmaster and she turns 3100 static. Bobby --------------4920FC5C4CFA64487CF851E7-- ------------------------------ Date: Sun, 6 Aug 2000 10:30:43 -0500 To: From: "Mark Langford" Subject: prop database? Message-ID: <005101bfffbb$49217580$a5f780ce@300emachine> PropHeads, OK, I guess it's time for a prop database. I would sure appreciate it if all you real KR flyers would email me privately with what size your prop is, who built the prop, what kind of engine you have, and what RPM it turns static and cruise. I'll make a list and post in on my web page. It'll at least give people a place to start. Don't be bashful here. There are a lot of variables at play here, especially between manufacturers, so it's not a bad reflection if yours doesn't turn as fast as some other guy's with the same engine. I'd even welcome previous prop info at well, no matter how bad a choice it was. I'll probably build my own eventually, in the quest for perfection, but like everybody else, I need a place to start. I've got Orma's input, and Bobby's (except for who made it, and cruise RPM). I tried to do a "used prop" list a while back, and got exactly one reply. Maybe I'll get luckier this time... Thanks a lot, Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Date: Sun, 6 Aug 2000 13:46:53 -0500 To: From: "Mark Langford" Subject: Fw: KR> prop database? Message-ID: <00ce01bfffd6$b0967d80$a5f780ce@300emachine> This was intended for KRNet (so don't reply directly to me), so here it is... ----- Original Message ----- From: "Aggie lewanda" To: "Mark Langford" Sent: Sunday, August 06, 2000 1:44 PM Subject: Re: KR> prop database? > Gentlemen, > > On the same note. I am brand new at this. I have bought a bunch of books > and bought plans from RR (Incl S variant update)and cleaned up my > garage / airplane factory (also a great excuse to buy drill press, table saw, > router, bench grinder, vise etc., etc.) and am now getting to the > serious part of building my first airplane. (Discounting balsa projects > with 42" wingspans many years ago). > > I plan to use a Corvair powerplant in my KR-2S. I have been watching all > the posts by people that they have a prop that is 52 X 54 or what ever > (hypothetical number). I am ignorant, what do these numbers mean? I assume > one number is the diameter in inches but that is only a guess. I am also a > student pilot who has not soloed yet. Perhaps they are going to teach me about > propellers but I thought I would ask. > > Also I have followed discussions about ground clearance. Wouldn't a > three bladed prop have a smaller diameter than a two blade of equal power? > Why do most KR owners build with two bladed props? Is it cheaper? More > traditional? Personal preference? Or, is there some good technical reason > why I should not use a three blade prop? > > I would also appreciate a comparison of the pro's and con's of a > constant speed prop on a KR-2S with a 145 H.P. Corvair engine. I know it > would be heavier & more expensive but what performance difference > could I expect? How much more weight? I know every pound I add to a > KR-2S will cut into my useful load. > > How about it fellows, a little Prop 101 for us dummies who are > new to all this and serious about getting into the air in the world's > best homebuilt aircraft (within the limits of a pore man's budget). > > Thanks > > > > > ===== > Dean Allen > P.O. Box 4173 > Greenville, SC 29608 > > (704) 348-1715 ------------------------------ Date: Sun, 6 Aug 2000 15:16:15 -0400 To: "Mark Langford" , From: "George" Subject: Re: KR> prop database? Message-ID: <003501bfffda$cb87eee0$6401a8c0@megapathdsl.net> KR-Netters, Mark, I was tempted to write this a long time ago. Whenever I see subject props my hart bits a little faster. It's also a good time to introduce myself to KR-Net. Props are my favorite hobby for past 30 years. When I was 19 I carved my first prop. Of course you don't want to know how it was performing and I'm not going tell you either. When learning design I followed like most old timers Fred Weick theory. I even still own his rare today book "Aircraft Propeller Design" . Back in '80's I noticed the importance of CNC machining and decided to learn computers. I knew that they will help me not only to design a good prop but also help me to carve it as well. And here I am 20 years later running my own computer business which occupy my all time (including my "free" time). But I know work is not everything, I have to slow down a bit and start continuing my hobby. Recently I purchased Prop Optimizer software from Donald Bates. (Bates Engineering). Shortly after I have wrote a program which take raw output from Prop Optimizer and create 3D image of the blade (AutoCAD compatible format and from here there is a short path to CNC!). During that process I discovered the one and only bug in Prop Optimizer which was unnoticed for 10 years+. (Mr. Bates was using tan instead of sin function in one of his formulas). He also offered me a help with my first designs. Here comes the offer I think KR-Net cannot refuse. It will benefit those who is already flying, those who are struggling to match the prop, and those who are not ready yet for prop at all. Why we not "use" Mr. Bates to help us design a dream prop for KR? Those who fly already will write down exactly what I need to calculate all aspects of their plane. What you are going to gain is knowledge that your prop on one end of the shaft and whole airplane on the other end are balanced out perfectly (are they? I think no one knows for sure). Like Mark said there are many variables to play with, like engine HP, drag of the airplane prop has to overcome etc, etc. Those who are not flying yet having similar engine may put borrowed prop with closest match and fly to record airplane performance and then recalculate their prop (by then we will know how to do it by hart) All info we will put on the web site in form of database to benefit everyone. George ----- Original Message ----- From: Mark Langford To: Sent: Sunday, August 06, 2000 11:30 AM Subject: KR> prop database? > PropHeads, > > OK, I guess it's time for a prop database. I would sure appreciate it if > all you real KR flyers would email me privately with what size your prop is, > who built the prop, what kind of engine you have, and what RPM it turns > static and cruise. I'll make a list and post in on my web page. It'll at > least give people a place to start. Don't be bashful here. There are a lot > of variables at play here, especially between manufacturers, so it's not a > bad reflection if yours doesn't turn as fast as some other guy's with the > same engine. I'd even welcome previous prop info at well, no matter how bad > a choice it was. I'll probably build my own eventually, in the quest for > perfection, but like everybody else, I need a place to start. > > I've got Orma's input, and Bobby's (except for who made it, and cruise RPM). > > I tried to do a "used prop" list a while back, and got exactly one reply. > Maybe I'll get luckier this time... > > Thanks a lot, > > Mark Langford, Huntsville, Alabama > mailto:langford@hiwaay.net > see KR2S project N56ML at http://home.hiwaay.net/~langford > > > > --------------------------------------------------------------------- > To post to the list, email: krnet@mailinglists.org > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > For additional commands, e-mail: krnet-help@mailinglists.org > ------------------------------ Date: Sun, 6 Aug 2000 14:39:07 -0500 To: From: "Mark Langford" Subject: Re: KR> prop database? Message-ID: <00eb01bfffdd$fc9b6180$a5f780ce@300emachine> George wrote: > Why we not "use" Mr. Bates to help us design a > dream prop for KR? That's a great idea! Why not start with the Corvair powered KR2S? That's a pretty big unknown, since there's not one flying yet (although I've seen pictures of an 85 hp blower fan on an old KR2). I've been reading Eric Clutton's "Propeller Making for the Amateur" and using his formulas arrived at a 56" diameter being optimal for cruise, a 52" for optimal wide open throttle, using parameters from my plane. He says "design for cruise" which I'm thinking will be about 180 mph using 100 hp. Since a 56" prop is about all we can fit on a Diehl geared KR2S anyway, maybe that's a good starting point. A 54" would fit for sure. The VW guys have all the "prior experience" in the world with similar installations, so they should be in pretty good shape. I got a call from a guy in Mexico yesterday who needed prop advice for his Corvair powered KR2S. I couldn't really give him any. I talked to Mike at Aymar-Demuth Friday, and about all I came away with was that "everything you know is wrong", and you can't even properly guess a good place to start. But I suspect he was just perpetuating that "black magic" thing that prop makers have going for them. He wouldn't give me a single number, although I gave him all of mine. Sounds like after the design process is over, that CNC machine might get put to good use! Another collaborative KRNet project is born! And to answer a previous question, Clutton says a 3 blader will be about .933 the diameter of a two blader. That may be the eventual answer to a short prop for a bored out Corvair like mine... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Date: Sun, 6 Aug 2000 13:06:54 -0700 (PDT) To: krnet@mailinglists.org From: Frank Ross Subject: Re: KR> prop database? Message-ID: <20000806200655.17553.qmail@web4704.mail.yahoo.com> --- Mark Langford wrote: > George wrote: > > > Why we not "use" Mr. Bates to help us design a > > dream prop for KR? > > That's a great idea! Why not start with the Corvair > powered KR2S? > Cant wait to see what comes of this. FYI - the WAR replicas have been using 3 and 4 blade props for awhile. Don't know much more about it though and WAR plans seller in FL isn't much help. ===== Frank Ross, San Antonio, TX, __________________________________________________ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/ ------------------------------ Date: Sun, 6 Aug 2000 16:37:55 -0400 To: "Mark Langford" , From: "George" Subject: Re: KR> prop database? Message-ID: <009b01bfffe6$346d4300$6401a8c0@megapathdsl.net> Corvair is a very good place to start. Does anyone have HP/RPM power curve for corvair engine? I asked some time ago William Wynne and he promise me to send one but I am still waiting... We still going to need VW guys input to determine some data (like exact flat plate drag area of KR). ============== Mark Langford wrote >"black magic" thing that prop makers have going for them Yes there is "black magic" no one seems to understand. Take two identical propellers, same diameter, same pitch. One runs 10-20 MPH faster than other. why? I know why, but if I'll tell you they will kill me :o) ============== > I would also appreciate a comparison of the pro's and con's of a > constant speed prop on a KR-2S with a 145 H.P. Corvair engine. Some manufacturers offer ground adjustable props hoping that varying the pitch will make one or few sizes fit all. Unfortunately the pitch DISTRIBUTION is a compromise they hope will not be to inefficient. See http://hsweb.net/propellers/pitchdist.jpg to find out what happens to the pitch if you turn blade a few degrees. also note that near cowl geometric pitch is a little bigger now than the rest of the blade. What we need here is to reduce airflow near the cowl and not increase it.(this is a some of that "black magic" thing) They also offer little variation in activity factor (blade area * local radius) which may force operation at too high or too low an angle of attack to give best all round cruise and climb performance. It seems just a matter of chance that even one of these will match particular airplane and engine combination. A constant speed propeller is also a compromise in pitch distribution and activity factor that usually leaves us a little short at the maximum cruise design point but it is designed to let the engine always to develop full power which helps takeoff and climb performance. George ------------------------------ Date: Sun, 6 Aug 2000 15:43:43 -0500 To: From: "Mark Langford" Subject: Re: KR> prop database? Message-ID: <00f701bfffe7$02ed5620$a5f780ce@300emachine> George wrote: > Corvair is a very good place to start. Does anyone have HP/RPM power curve > for corvair engine? See http://home.hiwaay.net/~langford/corvair/corvair_data.html for all the info you'd possibly want on the Corvair. Mine will be bored out to the tune of 15% larger, but since most folks are using the 110 HP without boring it out, that'll be fine. We're using the OT-10 cam though, which has more torque and hp at a higher RPM than these charts show, so we're still going to have to guesstimate a little... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Date: Sun, 06 Aug 2000 13:27:11 ADT To: krnet@mailinglists.org From: "Gaston Landry" Subject: kr's at barnstormers Message-ID: <20000806162711.26351.qmail@hotmail.com> I was looking around at www.barnstormers2000.com just to see what kind of deals I could find on kr-2's, and found a number of them for under $5000(US), engine included... I was just wondering how wary of deals like that, that I should be... for example: KR-2 PROJECT • FOR SALE OR TRADE!! This project is nearly complete with wood work being all done, and fiberglass to go. It needs wings to be built and fuselage fiberglassed (over pre-molded parts, provided) instruments, and it will be about ready to go. It has retractable main gear, and an 0-170 Continental engine. I would consider selling it for $3,000. Contact Lon Boothby located Spokane WA USA. Telephone: 509 443-0173. -- Posted 23 July 2000. is this a good deal or a deathtrap? also, in this hypothetical example, how easy would it be to convert to fixed gear? (dragger) I say hypothetical, because it'll be a few years before I can afford to even think of buying something like this, but thought this info might be beneficial to others looking for a plane... Running around, arms in the air, making airplane noises... Gaston ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ------------------------------ Date: Sun, 06 Aug 2000 13:43:52 -0400 To: Gaston Landry From: Floyd Dickinson CC: krnet@mailinglists.org Subject: Re: KR> kr's at barnstormers Message-Id: <200008061743.NAA28762@mail2.capital.net> Certainly some deals can be had for many varied reasons - however, the quality of the aircraft certainly reflects the expertise of the builder, and so a good look at the structure thru knowledgable eyes may be an indicator - there are always stuff you cannot see as well - so extreme caution would be the advise... the ad you refer to certainly looks great but ....... somethings wrong here -- the engine alone in good shape is worth that so what gives? floyd Gaston Landry wrote: > I was looking around at www.barnstormers2000.com just to see what kind of > deals I could find on kr-2's, and found a number of them for under $5000(US), > engine included... I was just wondering how wary of deals like that, that I > should be... > ------------------------------ Date: Sun, 6 Aug 2000 12:23:32 -0700 (PDT) To: Floyd Dickinson , Gaston Landry From: Frank Ross Cc: krnet@mailinglists.org Subject: Re: KR> kr's at barnstormers Message-ID: <20000806192332.11676.qmail@web4703.mail.yahoo.com> --- Floyd Dickinson wrote: > some deals can be had for many varied > reasons - however, the quality > of the aircraft certainly reflects the expertise of > the builder, and so a good > look at the structure thru knowledgable eyes may be > an indicator - there are > always stuff you cannot see as well - so extreme > caution would be the advise... > the ad you refer to certainly looks great but > ....... somethings wrong here -- > the engine alone in good shape is worth that so what > gives? > floyd > > Gaston Landry wrote: > > > I was looking around at www.barnstormers2000.com > just to see what kind of > > deals I could find on kr-2's, and found a number > of them for under $5000(US), > > engine included... I was just wondering how wary > of deals like that, that I > > should be... > > Gaston, I haven't built one, but this project is not "almost done" by a long stretch. This is a good time to look at it though. Everything is open and can be examined easily. Once the glass work is done it is harder to see what is under there. Floyd gives good advice - get someone who knows KRs or an A&P with composite experience to go with you and look at it. That limits you to looking at stuff near-by, unless you have a lot of time and means to travel. It could be a chance to pick up a lot of stuff at a great price. Find out what the seller has and what it is worth before you go. Also, sometimes sellers aren't the builders and have an inflated idea of what they have. In that case you may be much better off just forgetting about it. Do comparison shopping too. Have fun ===== Frank Ross, San Antonio, TX, __________________________________________________ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/ ------------------------------ Date: Sun, 6 Aug 2000 12:58:22 EDT To: cschmidt@kaydon.com, krnet@mailinglists.org From: GARYKR2@cs.com Subject: Re: KR> spinners Message-ID: <37.8888c87.26bef32e@cs.com> In a message dated 8/4/00 4:12:32 PM Eastern Daylight Time, cschmidt@kaydon.com writes: << HEY GUYS: Can anyone tell me the size of spinner/nosecone that's used on most KR2's thanks CURTIS R SCHMIDT CNC TOOLING & PROGRAMMING LARNED KANSAS >> 10 inch dia. Try Great Planes for the setup. Gary Hinkle (A/P) Middletown, Pa. garykr2@cs.com ------------------------------ Date: Sun, 6 Aug 2000 13:11:59 -0500 To: From: "Mark Langford" Subject: prop question Message-ID: <009501bfffd1$d041bc80$a5f780ce@300emachine> I should ahve asked "max RPM at wide open throttle, level flight" rather than at cruise, and "given what you have on it now, what do you THINK you need... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Date: Sun, 06 Aug 2000 15:41:56 -0500 From: Bruce Watkins CC: krnet@mailinglists.org Subject: WAR replicas plans Message-ID: <398DCD94.C8F1A4F5@clas.net> Speaking of W.A.R. replicas, does anyone know where I can get a set of plans. Bruce -- mailto:flyer@clas.net http://users.clas.net/~flyer -- Frank Ross wrote: > > > Cant wait to see what comes of this. FYI - the WAR > replicas have been using 3 and 4 blade props for > awhile. Don't know much more about it though and WAR > plans seller in FL isn't much help. > > ===== > Frank Ross, San Antonio, TX, > > -- mailto:flyer@clas.net http://users.clas.net/~flyer -- ------------------------------ Date: Sun, 06 Aug 2000 17:23:31 -0400 To: krnet@mailinglists.org From: Floyd Dickinson Subject: Re: prob database Message-Id: <200008062123.RAA04466@mail1.capital.net> If my memory serves me correct (and it may not ), back in the late 70's, someone tested the KR1 with a 4 blade wood, ground adjustable and got a tremendous boost, in the range of 200mph but was with a VW powerplant. I've forgotten who manufactured them, geez that's a long time ago. So I would certainly expect that one could achieve better performance from Corvair power. Floyd ------------------------------ Date: Sun, 06 Aug 2000 14:38:12 -0700 To: Oscar Zuniga From: Ross Youngblood CC: krnet@mailinglists.org Subject: Re: KR> ASI calibration Message-ID: <398DDABD.89CD9394@teleport.com> For a while when I was hangared up at CVO, there was an instrument test rig in the hangar and I was tolk if I wanted to borrow it I could. Too bad I moved. You might check the local FBO's to see if anyone has the equipment. The only other alternitive I can think of is the one where you drive around in your car on I-5 and see what the instrument reads... but then this means you have to remove it from the plane. -- Ross Oscar Zuniga wrote: > Howdy, netters- > > Is there any way to calibrate an airspeed indicator? I've had the question > from a builder who thinks his pitot and static ports are correctly located, > but via his GPS has found that there is 15-20 MPH error in his ASI. > > Oscar Zuniga > Medford, Oregon > mailto: taildrags@hotmail.com > website at http://www.geocities.com/taildrags/ > > ________________________________________________________________________ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com > > --------------------------------------------------------------------- > > To post to the list, email: krnet@mailinglists.org > > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > > For additional commands, e-mail: krnet-help@mailinglists.org ------------------------------ Date: Sun, 06 Aug 2000 18:56:07 ADT To: rossy@teleport.com, taildrags@hotmail.com From: "Gaston Landry" Cc: krnet@mailinglists.org Subject: Re: KR> ASI calibration Message-ID: <20000806215607.6916.qmail@hotmail.com> I just found this earlier today... Jim Weir describes an inexpensive way to calibrate your ASI. it says you need Paint Shop Pro to view the article, but I was using ACDSee, with no problems, just had to downsize it 2 notches... http://www.rst-engr.com/ go to Magazine Articles, then scroll down 6 articles (not including the ones in the box, about Karmic Connectors). There are other really interesting articles there... browse around Gaston >From: Ross Youngblood >To: Oscar Zuniga >CC: krnet@mailinglists.org >Subject: Re: KR> ASI calibration >Date: Sun, 06 Aug 2000 14:38:12 -0700 > >For a while when I was hangared up at CVO, there was an instrument test rig >in >the >hangar and I was tolk if I wanted to borrow it I could. Too bad I moved. >You >might >check the local FBO's to see if anyone has the equipment. > >The only other alternitive I can think of is the one where you drive around >in >your car >on I-5 and see what the instrument reads... but then this means you have to >remove >it from the plane. > > -- Ross > >Oscar Zuniga wrote: > > > Howdy, netters- > > > > Is there any way to calibrate an airspeed indicator? I've had the >question > > from a builder who thinks his pitot and static ports are correctly >located, > > but via his GPS has found that there is 15-20 MPH error in his ASI. > > > > Oscar Zuniga > > Medford, Oregon > > mailto: taildrags@hotmail.com > > website at http://www.geocities.com/taildrags/ > > > > ________________________________________________________________________ > > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com > > > > --------------------------------------------------------------------- > > > > To post to the list, email: krnet@mailinglists.org > > > > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > > > > For additional commands, e-mail: krnet-help@mailinglists.org > > >--------------------------------------------------------------------- >To post to the list, email: krnet@mailinglists.org >To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org >For additional commands, e-mail: krnet-help@mailinglists.org > ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ------------------------------ Date: Sun, 6 Aug 2000 17:00:45 -0500 (CDT) To: krnet@mailinglists.org From: shanspur@webtv.net (shannon spurgeon) Subject: dynel vs f/g Message-ID: <546-398DE00D-5795@storefull-624.iap.bryant.webtv.net> I know this is going to ruffle the feathers of everyone who has logged umpteen thousand hours flying a kr built with dynel, but it is my understanding that dynel is a brand name for polyester fabric,-the same stuff as peel ply. It may have something to do with the coating added during or after weaving, but per Poly-Fiber literature, (also polyester fabric) adhesion to this material is poor. That's why you must be certain, when gluing P/F to structure, of complete encapsulation of the fabric by the adhesive. This poor adhesion is what killed Steve Wittman. What may be happening is after a few years of vibration, the dynel is "floating" inside the resin matrix. Not a big problem as long as the layup is not carrying critical loads. But if used as critical structure, I would feel much safer with the strongest glass available. As to irritation, anyone who has installed glass home insulation knows about the mechanical irritation caused by skin penetration of glass fibers. This is NOT the same as the allergic rash from uncured resin. Cured resin is supposed to be inert and non-hazardous. (Theorectally) The glass "stickers" can be reduced or eliminated with skin creams, tyvek coveralls, cool showers and masking tape applied and peeled from itchy areas. The tape may pull out a few hairs along with the glass, but it is a quick and simple path to relief. If you have a reaction to the resin, a visit to the doctor may be necessary, and from that time on you must avoid further contact, at hazard to your life. One or two planes have been finished by wearing what amounts to a spacesuit fed positive pressure clean air anytime uncured resin was handled. Extreme? You decide for yourself what risks you are willing to take. If I have misidentified the dynel, I apologize for the alarm and will face whatever punishment you feel is appropriate. But I would want to be absolutely sure before I put it in my plane. Happy building and flying, Shannon ------------------------------ Date: Sun, 06 Aug 2000 15:15:37 -0700 To: Mark Langford From: Ross Youngblood CC: KR-net Subject: Re: KR> Polimeric materials for KR Message-ID: <398DE389.296B951B@teleport.com> Thanks Mark, I was trying to save space in the reply... By the way, I believe I owe you some money for the 'NET. Oscar sent me a line. I will get the check out to you today. -- Ross Mark Langford wrote: > > >I skipped the part about using a dusk mask. > > Eduardo wrote: > > > mask, to air the enclosures, always. The health goes first. Be carefull. > Let > > us be careful. > > Eduardo, I think what Ross meant is that he was going to "skip" the typing > involved in reproducing the dust mask warnings on the label. Ross is the > only guy I know whose picture was published in the KR Newsletter wearing a > dust mask... > > Mark Langford, Huntsville, Alabama > mailto:langford@hiwaay.net > see KR2S project N56ML at http://home.hiwaay.net/~langford > > --------------------------------------------------------------------- > > To post to the list, email: krnet@mailinglists.org > > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > > For additional commands, e-mail: krnet-help@mailinglists.org ------------------------------ Date: Sun, 06 Aug 2000 15:33:35 -0700 To: Bob Smith From: Ross Youngblood CC: krnet@mailinglists.org Subject: Re: KR> "inspectors"of experimentals Message-ID: <398DE7BF.7EAA60CB@teleport.com> Bob, Well, I actually founded an EAA chapter up in Corvallis, and ended up getting three folks to be Technical counselors.... the "tough" inspector was an A&P who owned a Bellanca Viking (wooden wings), he was the toughest, and made comments about my "50 foot" paint job. But otherwise, had lots of good suggestions, for example, he wanted to see only Hi temp locknuts firewall forward, no nylock nuts. This seemed like a great idea, so I bought some. The other two tech counselors were just guys that had built airplanes before, and BEAUTIFUL planes they were, one helped me learn how to safety wire various items in the engine, and suggested a source for fuel hose... the local farm supply store. Seems tractors still use 37deg flared fittings, and at a much lower cost. Most of this stuff is for high pressure hydraulic lines, but works great for fuel lines. Saved $$$. I guess I would say, hang out at the airport... find other builders and have them over. I still need to get connected here in Phoenix. Guess who one of the Tech Counselors is out here... Nat Puffer... designer of the COZY 4 seat canard plane. -- Regards Ross Bob Smith wrote: > >From reading KRnet I see plenty of references to having a tough "inspector" watching over the KR project. > > I know that EAA wants one of their technical advisors to check a project 3 times during construction for insurance purposes. But the only EAA guy I could find in my area doesn't seem to know much about composite construction so even when he shows up, I don't feel that he offers any concrete suggestions. > > And when I called the local FAA office they just said "call us when you are done". > > I feel like I'm completely on my own. Thank God for KRnet, its the only good advice I can get. > > So where do these "tough inspectors" come from??? I wish I had one. > > Bob Smith ------------------------------ End of krnet Digest ***********************************