From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 214 Date: 11/19/2004 8:59:24 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. Searching for OK based KR's (Grant Watkins) 2. Re: Turbo Trouble (Robert Morrissey) 3. Re: Turbo Trouble (Orma) 4. Re: Searching for OK based KR's (Scott) 5. Turbo trouble (Orma) 6. Wicks (robert glidden) 7. cowling mold (Jack Cooper) 8. Re: cowling mold (Mark Langford) 9. Re: cowling mold (Jack Cooper) ---------------------------------------------------------------------- Message: 1 Date: Fri, 19 Nov 2004 06:22:09 -0800 (PST) From: Grant Watkins Subject: KR> Searching for OK based KR's To: krnet@mylist.net Message-ID: <20041119142209.33195.qmail@web54202.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii Hi All, I'm new to the list so if I make any mistakes please let me know. First, I'm an aviation enthusiast. I love aviation. I've been enfatuated with anything that would fly since I was 5 or 6 years old. I was lucky enough to start flying while I was in college. I obtained my pilots license shortly after graduating from college in 1997. Since that time, I've not been able to do much flying at all. I have a couple of friends that I get to go flying with occasionally, but don't get any PIC time. Anyway, I've recently began considering building my own aircraft. I''ve looked at all sorts of kit planes and have settled on a few. One of the kits that I have settled on is the KR-2. I'm also considering the Dragonfly and the Sonerai II. I really like the KR for it's low cost, high efficiency, and the impressive cruise speed. I'm looking for someone in Oklahoma that has a plans or kit build KR-2. I'd really like to look at one up close and personal and be able to talk to a builder in person before making the decision to start building. So, if there are any KR-2 owners in Oklahoma (I'm in the Tulsa area) please respond to this post. I'd really like to meet you. Thanks in advance, Grant Watkins --------------------------------- Do you Yahoo!? Discover all that’s new in My Yahoo! ------------------------------ Message: 2 Date: Thu, 18 Nov 2004 20:06:25 -0500 From: "Robert Morrissey" Subject: Re: KR> Turbo Trouble To: "KRnet" Message-ID: <000101c4ce54$811f3fa0$0201a8c0@phoenix> Content-Type: text/plain; charset="iso-8859-1" ----- Original Message ----- From: "Orma" To: "KRnet" Sent: Thursday, November 18, 2004 2:25 PM Subject: KR> Turbo Trouble > Hello Net > As I removed the turbo, I also got an Oh Sxxt, when I noted that the impeller has taken an impact and that it will have to be replaced. With the revflow wide open as in take off, there is nothing to stop some pretty large objects from reaching the impeller. Orma; Sorry I have no advice on the pressure problem. But, based on a career that included repairs on aircraft turbine engines, gas turbine compressors, and aux power units you may be able to repair your turbine/impeller. If you have the tech data to give you the metal composition, and depending on location on the impeller, you may be able to weld repair the part. At the Naval Aviation Depot that I worked at we would do weld repairs on the contour portion up to 0.050 inch deep and on the tip portion up to 0.250 inch. The sides of the weld were hand ground and finished to the same thickness as the original part. The wheel was then ground back to the original blue print contour. If your wheel has not rubbed on the casing then your wheel should be per print for all practical purposes. You could try making a template from an adjacent impeller blade and hand finish the welded blade to match. You may have to do post weld heat treat and balance. DO AN NDI. If you are missing a really big chunk, you lose. Check out your turbine wheel for damage. If you have axial cracks in the hub area between the blades do not panic. These are usually stress relief cracks and will not continue to grow. We saw a lot of them on GTC100-54 and GTC 95-2 turbine wheels. Some appeared in less than 10 operating hours. One last thing to consider. Treat the turbine as you would the engine by avoiding thermal shock. The worst thing you can do is to start the engine, run at full power for a short duration and then shut the engine off quickly. This is hard on the turbine and the oil will not be able to do its real job of post engine shut off lubrication. Our GTC engines actually had a built in oil reservoir to keep the bearings lubricated at all times. Bob Bought KR2S in boat stage. Building aircraft mfgring facility. ------------------------------ Message: 3 Date: Fri, 19 Nov 2004 11:37:07 -0500 From: "Orma" Subject: Re: KR> Turbo Trouble To: "KRnet" Message-ID: <008801c4ce56$03140710$b7a6ff44@ROBBINS1> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original you may be able to repair Thanks Bob for the input. My impeller has about three bent blades. they did not drag on the housing. If the price of the impeller is not too high, I will simply replace it. After all the path from the impeller to the engine is pretty direct. I would hate to ingest a part Orma ------------------------------ Message: 4 Date: Fri, 19 Nov 2004 14:49:38 -0500 From: Scott Subject: Re: KR> Searching for OK based KR's To: KRnet Message-ID: <419E4E52.8060508@ctc.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Grant Watkins wrote: >I'm looking for someone in Oklahoma that has a plans or kit build KR-2. >I'd really like to look at one up close and personal and be able to talk to a builder in person before making the decision to start building. So, if there are any KR-2 owners in Oklahoma (I'm in the Tulsa area) please respond to this post. I'd really like to meet you. > > Try looking at http://krnet.scottstanton.us/cgi-bin/krnet_list.pl in the future, but there doesn't seem to be anyone signed up at the moment. Scott Raleigh NC ------------------------------ Message: 5 Date: Fri, 19 Nov 2004 18:09:49 -0500 From: "Orma" Subject: KR> Turbo trouble To: "KRnet" Message-ID: <000d01c4ce8c$df867210$b7a6ff44@ROBBINS1> Content-Type: text/plain; charset="iso-8859-1" Hello Net Sure is quite today. As an update to my turbo saga, I disassembled the center section today and no parts fell out. The oil seal on the hot side is some metal and looks like a piston ring seal. This seal must be worn out as opposed to blown out. The compressor showed no signs of leaking. I uploaded some pictures onto my web site at http://kr-2.aviation-mechanics.com/turborepair.htm I have found a new compressor wheel and a seal and bearing kit at www.htturbo.com they will cost me $89 for the bearings and seals and $51 for the new compressor wheel. My $100. Ebay turbo is now up to $250. That's still not bad. Paul at High Tech Turbo tells me that the trim is 52 and that the turbine housing is a .43 A/R. These numbers are Greek to me. Orma Southfield, MI N110LR celebrating 20 years Flying, flying and more flying http://www.kr-2.aviation-mechanics.com/ ------------------------------ Message: 6 Date: Fri, 19 Nov 2004 18:23:15 -0500 From: "robert glidden" Subject: KR> Wicks To: "Krnet" Message-ID: <001e01c4ce8e$bef4ab00$0c00000a@computer2> Content-Type: text/plain; charset="iso-8859-1" Netheads Just wanted to share some good news about one of our suppliers.I ordered 10 yards of fabric,3/4 gallon aeropoxy resin,quart of hardener and some areopoxy filler at 2:30 pm on Wednesday the 17th and it was setting on my porch tonight when I got home.WAY TO GO WICKS and just for Mark L. I would have shot the dog,but did not have to.... Bob Glidden Eminence,Indiana KR2S N181FW Corvair 110 glidden@ccrtc.com ------------------------------ Message: 7 Date: Fri, 19 Nov 2004 20:43:59 -0500 From: "Jack Cooper" Subject: KR> cowling mold To: "KR builders and pilots" Message-ID: <410-220041162014359953@earthlink.net> Content-Type: text/plain; charset=US-ASCII Mark I was wondering about your cowling mold. Do you have a box to ship it in? Have you shipped it to anyone? Do you have it in your possession or does someone else have it now? I have a cowling but its not going to be long enough and has cheeks so it may be easier to make a new one from a mold. Jack Cooper kr2cooper@earthlink.net Why Wait? Move to EarthLink. ------------------------------ Message: 8 Date: Fri, 19 Nov 2004 20:08:11 -0600 From: "Mark Langford" Subject: Re: KR> cowling mold To: "KRnet" Message-ID: <000001c4cea7$4ed44150$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" Jack, Ray Fuenzela has it at the moment, but has promised to ship it to whoever's next on the list, and I believe he told me he's done with it at CC#8. You'd be third in line behind two other guys, if you don't mind waiting a little while. It really doesn't take but one day to pull a cowling off the mold, so if these guys will get the ball rolling again, you could have it pretty shortly. I could figure out who the two guys are that are next by digging through my email for the moment, but maybe they'll email me privately and remind me, or let me know if they still want it. Otherwise, you'd be next on the list. My cowling (and mold) is longer than a Revmaster, but it doesn't have to be. The installed distance between firewall and prop flange is actually shorter than many VW installations that I've seen. OK, Ray, time's up! Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford ------------------------------ Message: 9 Date: Fri, 19 Nov 2004 22:54:09 -0500 From: "Jack Cooper" Subject: Re: KR> cowling mold To: "KRnet" Message-ID: <410-22004116203549437@earthlink.net> Content-Type: text/plain; charset=US-ASCII My cowling is 25.5" firewall to spinner opening. My engine measures 27.5 from prop hub to tip of starter. I will have about 3/4 to 1" between starter and firewall. Giff and I will start building the engine mount next week. Tray is done except for some final welding. Do you remember how many yards of carbon fiber it took to lay up the cowling? Jack Cooper > [Original Message] > From: Mark Langford > To: KRnet > Date: 11/19/2004 9:18:42 PM > Subject: Re: KR> cowling mold > > Jack, > > Ray Fuenzela has it at the moment, but has promised to ship it to whoever's > next on the list, and I believe he told me he's done with it at CC#8. You'd > be third in line behind two other guys, if you don't mind waiting a > little while. It really doesn't take but one day to pull a cowling > off the mold, so if these guys will get the ball rolling again, you > could have it pretty shortly. I could figure out who the two guys are > that are next by digging through my email for the moment, but maybe > they'll email me privately and remind me, or let me know if they still > want it. Otherwise, you'd be next > on the list. My cowling (and mold) is longer than a Revmaster, but it > doesn't have to be. The installed distance between firewall and prop flange > is actually shorter than many VW installations that I've seen. > > OK, Ray, time's up! > > Mark Langford, Huntsville, Alabama > N56ML "at" hiwaay.net > see KR2S project at http://home.hiwaay.net/~langford > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 346, Issue 214 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================