Archives from 4/24- krnet-l-digest Thursday, April 24 1997 Volume 01 : Number 001 ---------------------------------------------------------------------- Date: Tue, 22 Apr 1997 20:21:51 -0700 From: Micheal Mims Subject: Re: KR: Fuselage: Covering with 1.45 oz deck cloth At 09:52 PM 4/22/97 -0400, you wrote: Maybe I'm missing something, but if you are covering with glass I would >assume it is for structural purposes. If not, why even bother. Yep your missing something! As we all know the KR doesn't need any strength added! The layer of glass is too aid in sealing the plywood, so don't overlap the dang joints! YOU don't have to use the layer of glass if you don't want too, but it is recommended by 9 out of 10 who have built a KR, of course there are some people who insist on not listening to people who have been there! :-) ------------------------------ Date: Tue, 22 Apr 1997 23:30:29 -0400 From: ashadow@voyager.net Subject: KR: pulleys I just made my fittings for my pulleys, put the pulleys and gave it a "test run". It appears that the pulley is rubbing on the bracket. Is it ok, or is it recommended to put washers on the bolt, between the puley and bracket, to give it more clearance so as not to rub? David ------------------------------ Date: Tue, 22 Apr 1997 20:52:01 -0700 From: Ross Youngblood Subject: KR: Nifty Stuff I have two FRAM glass see-through filters for each wing tank, but my Ellison TBI specified filtering the fuel down to 70 microns or finer. The see through filters don't specify the filtering, but I don't think they are down to 70 microns. I found a nice AC delco fuel filter for a little over $8.00 it has threaded 3/8" fittings on both ends. This mates up with a hardware store flavor 3/8" flared fitting nipple which happens to also fit into the fuel shutoff I purchased from ACS. Now... does anyone have an idea of how good automotive filtering is? This is a GF-481. My expectations are that if you looked for a filter for fuel injected engines that you might get 70 microns or better. But I'm thinking that for $8.00 this isn't quite good enough. I'm not sure I want to spring for the $80.00 filter in the ACS catalog recommended for the Ellison. I may give the folks at Ellison a call. Anyone have a feel for how good automotive fuel filters are? -- Ross ------------------------------ Date: Tue, 22 Apr 1997 20:57:49 -0700 From: Ross Youngblood Subject: KR: Nomex Flight Suit? Looking for the ultimate in Nomex fire proof flight wear? Check out http://www.motomall.com http://www.motomall.com/frey/racequip1.html No pricing? Must be one of those if you have to ask... you can't afford it. -- Regards Ross ------------------------------ Date: Wed, 23 Apr 1997 00:03:04 -0400 (EDT) From: EagleGator@aol.com Subject: Re: KR: Fuselage: Covering with 1.45 oz deck cloth In a message dated 97-04-22 22:34:40 EDT, Steve Horn wrote: << Maybe I'm missing something, but if you are covering with glass I would assume it is for structural purposes. If not, why even bother. >> My reasons for covering the fuselage are two-fold; one is for durability, the other is for aesthetics. I don't intend for the covering to be structural. I primarily want to protect the wood stucture from the elements and contaminants (oil, fuel, hydraulic fluid, etc.), and personally will feel more comfortable with the "boat" sealed with a skin of fiberglass. I know we could get the same effect from many coats of a good finish, but I like the idea of a more-or-less impervious cocoon of glass. I haven't calculated the added weight, but with 1.45 oz. cloth it will be relatively little. In my mind the benefits outweigh the negatives. BTW, Tony Bingelis recommends this technique on page 156 of "The Sportplane Builder" (I just looked it up). Regarding the added weight, he says you can estimate about 1 ounce of resin per square foot, plus the weight of the cloth. I'll do the math later. I'm not recommending this to everyone, it's just what I've decided to do. In 10 years or so we can get our planes together and see if it made any difference in the long term. Man, I LOVE experimental aviation! Rick Junkin EagleGator@aol.com ------------------------------ Date: Tue, 22 Apr 1997 21:11:18 -0700 From: Ross Youngblood Subject: Re: KR: Wood Repair Austin, I had a tech counselor who was so hot on Epoxy, I think he would have approved the injecting epoxy repair idea. I can't see the damage, but it might be worth a shot. Another perfectly legal approach would be to cut out the 4" damaged area and scarf the two pieces back together using the approved 12:1 slope scarf technique. For a while it was not possible to get longeron material of the correct length anyway and scarfing was required to get the correct length. -- Ross Austin Clark wrote: > > My shipment of spruce was damaged during shipment and one of the longerons > has a split about 4 inches long and about 3/16 inch from the edge. This > damage is located about mid-length. Apparently the freight company tried to > repair the crate and drove a small nail into the piece. When I called > Wicks to order another piece, they told me it would be 4 to 6 weeks before > they got any more spruce that length. > > I've thought about injecting some epoxy into this crack and clamping it. > Any comments on this would be appreciated. Another option I am considering > is cutting a longeron from douglas fir. Thanks in advance for any > suggestions and comments. > > Austin Clark - -- Ross Youngblood KRNET-L administrator mailto:rossy@teleport.com http://www.teleport.com/~rossy/N541RY.htm ------------------------------ Date: Tue, 22 Apr 1997 21:12:31 -0700 From: Ross Youngblood Subject: Re: KR: wing flaps and ailerons Donald Reid wrote: > I talked to a KR builder at a flyin (but did not get a name) who said > that he had a low roll rate that was not really in harmony with the pitch > rate. He also said that in a high speed, hi G turn, his ailerons would > bind up. Does anyone know about this? Sounds like somthing that should be fixed. Binding controls sound nasty. -- Ross - -- Ross Youngblood KRNET-L administrator mailto:rossy@teleport.com http://www.teleport.com/~rossy/N541RY.htm ------------------------------ Date: Tue, 22 Apr 1997 21:15:14 -0700 From: Ross Youngblood Subject: Re: KR: Fuselage: Covering with 1.45 oz deck cloth Steve, Horn2004@aol.com wrote: > If the cloth doesn't overlap then your strength remains the same as > it always was with just plain wood, right at the point where the cloth > DOESN'T overlap. Seems to me this would simply add lots-o-weight with little > if any benefit. > > Steve Horn > Horn2004@aol.com I think the point of the deck cloth is to achieve a nice finish. I would recommend doing the wings and the other lay-ups first, then if you still have the energy, go for the fuselage. I think that the epoxy will just be difficult to sand at finishing time. -- Ross - -- Ross Youngblood KRNET-L administrator mailto:rossy@teleport.com http://www.teleport.com/~rossy/N541RY.htm ------------------------------ Date: Tue, 22 Apr 1997 21:19:46 -0700 From: Ross Youngblood Subject: Re: KR: Fuselage: Covering with 1.45 oz deck cloth Micheal Mims wrote: > > At 09:52 PM 4/22/97 -0400, you wrote: > Maybe I'm missing something, but if you are covering with glass I would > >assume it is for structural purposes. If not, why even bother. > > Yep your missing something! As we all know the KR doesn't need any > strength added! The layer of glass is too aid in sealing the plywood, so > don't overlap the dang joints! YOU don't have to use the layer of glass if > you don't want too, but it is recommended by 9 out of 10 who have built a > KR, of course there are some people who insist on not listening to people > who have been there! :-) I haven't met these other 9 folks. The first KR I saw looked terrific, and when I asked the owner what he did to seal the plywood, he indicated he just used primer and paint. I think he did seal the staple holes with filler however, thats when I decided that I didn't need to do anything to the plane. I guess I need to go to a KR gathering and meet the 9 other guys. ;) -- Ross ------------------------------ Date: Tue, 22 Apr 1997 21:22:58 -0700 From: Ross Youngblood Subject: Re: KR: pulleys ashadow@voyager.net wrote: > > I just made my fittings for my pulleys, put the pulleys and gave it a > "test run". It appears that the pulley is rubbing on the bracket. Is it > ok, or is it recommended to put washers on the bolt, between the puley > and bracket, to give it more clearance so as not to rub? > > David I believe I put a single washer between the pulleys and the bracket to keep them from rubbing. -- Ross - -- Ross Youngblood KRNET-L administrator mailto:rossy@teleport.com http://www.teleport.com/~rossy/N541RY.htm ------------------------------ Date: Tue, 22 Apr 1997 21:29:46 -0700 From: Ross Youngblood Subject: Re: KR: Nomex Flight Suit? cooks@aloha.net wrote: > > Ross, > If you're thinking about catching fire, you can get decent > Nomex flight suits at Mil surplus auctions for pretty cheap. > > R. Cook Ahh, but those are not as cool looking as the custom ones on the Website, actually I was looking for a VW oil cooler on the Web, and found the Nomex racing suits instead. -- Ross ------------------------------ Date: Tue, 22 Apr 1997 22:02:47 -0700 From: Ross Youngblood Subject: Re: KR: Possible builder...(NOT FOR ARCHIVE) Started my project in Jan '88. I have logged about 900 hours in the construction log, probably at least 200-400 hours not in the log over that time period. Two years off with no activity. And some years I didn't work on the project every month. It's getting close however! - -- Ross cooks@aloha.net wrote: > > KR'ers > Is this building time typical? How many hours do you guys have in > your project? How about some of the folks that have finished theirs? > > R. Cook > > {big snip} > >>I am scratch building a modified -2S. I am about 75% and have at logged > >>2600 hours. Pick your best estimate of time and then double it. That > might >>be close. ------------------------------ Date: Tue, 22 Apr 1997 22:39:11 -0700 From: Micheal Mims Subject: Re: KR: Possible builder...(NOT FOR ARCHIVE) At 06:49 PM 4/22/97 -1000, you wrote: >KR'ers > Is this building time typical? How many hours do you guys have in >your project? How about some of the folks that have finished theirs? > >R. Cook > >{big snip} >>>I am scratch building a modified -2S. I am about 75% and have at logged >>>2600 hours. Pick your best estimate of time and then double it. That >might >>be close. I have about, lets see..... maybe 300 hours into mine so far. I don't think 2600 is typical, as a mater of fact it may be a world record! KRs have been built in as little as 30 days and as long as....... 3000hrs when the one above gets done! :-) I think 1500 to 2000 is more the norm and Im sure some of the other builder/flyers will comment. Lets see 2600 hours is 4 hours everyday for almost 2 years. Hummm........... I honestly think I could built a KR in three months If I could work on it full time and had a helper (that's about 1000hrs), after all it has been done. ------------------------------ Date: Wed, 23 Apr 1997 02:12:13 -0400 (EDT) From: BSHADR@aol.com Subject: Re: KR: wing foam In a message dated 97-04-22 12:00:02 EDT, you write: << >Are you sure the deformation was due to the lack of foam and not that the >wing was too airtight and thus expanded with the altitude and resulting >trapped higher air pressure? > >This is one thing to make sure of when you build your wings;they need to >vent to the outside air to prevent the expansion. Just run the vent through >your wing to your nav lights on the ends. > Im positive, we were only at 900 feet or so and it varied with speed. >> I'll back Mike up on his observations. I too flew with Troy (befrore Mike did) and saw the same thing. Foam must have been a bit thin betwist the 'ol ribs. Randy Stein BSHADR@aol.com ------------------------------ Date: Wed, 23 Apr 1997 05:43:10 -0400 (EDT) From: Tom Crawford Subject: Re: KR: Possible builder...(NOT FOR ARCHIVE) On Tue, 22 Apr 1997 cooks@ALOHA.NET wrote: > KR'ers > Is this building time typical? How many hours do you guys have in > your project? How about some of the folks that have finished theirs? > > R. Cook > > {big snip} > >>I am scratch building a modified -2S. I am about 75% and have at logged > >>2600 hours. Pick your best estimate of time and then double it. That > might >>be close. > > I have built a stock KR2 with all the Rand pre-molds and Deihl wingskins. All finishing is done and am ready to shoot the final paint. At this point I need to finish the interior, install and wire the instruments in the panel, and finish plumbing the engine(intake manifold, battery, controls. Right now, I have 1285 hours of labor logged. This is not counting about the same number of hours standing there with a dumb look on my face, scratching my head trying to figure out how to do something that is not made clear in the construction manual. Tom Crawford KR4QV Gainesville, FL tomc@afn.org KR2 N262TC 90% done, 50% to go. You bet I'm a Gator! ------------------------------ Date: Wed, 23 Apr 1997 09:21:44 -0400 (EDT) From: JEHayward@aol.com Subject: Re: KR: KR Wing Ribs In a message dated 97-04-21 13:55:49 EDT, you write: <> Michael, do you know if the Diehl wing skins (which I will be using) do the same type thing? Jim Hayward ------------------------------ Date: Wed, 23 Apr 1997 10:40:19 -0400 (EDT) From: DAmbrose12@aol.com Subject: Re: KR: Nifty Stuff Hi: If you check the speed shops they have high performance filters available. I think they are from K&N. They are glass see thru type and the advertisement reads " Polish your fuel" . That would imply clean but I don't have the specs. Regards Dennis ------------------------------ Date: Wed, 23 Apr 1997 10:50:27 -0500 From: "Tim \"KitaruSapien\" Tracey" Subject: Re: KR: Possible builder...(NOT FOR ARCHIVE) >I have built a stock KR2 with all the Rand pre-molds and Deihl wingskins. >All finishing is done and am ready to shoot the final paint. At this point I >need to finish the interior, install and wire the instruments in the panel, >and finish plumbing the engine(intake manifold, battery, controls. Right >now, I have 1285 hours of labor logged. This is not counting about the same >number of hours standing there with a dumb look on my face, scratching my >head trying to figure out how to do something that is not made clear in the >construction manual. > >Tom Crawford KR4QV >Gainesville, FL >tomc@afn.org >KR2 N262TC 90% done, 50% to go. >You bet I'm a Gator! > I guess it might be too much to ask if I could come up to see your bird sometime? I'm down here in Tampa. Tim Tracey > ------------------------------ Date: Wed, 23 Apr 1997 09:18:07 -0700 From: Micheal Mims Subject: Re: KR: KR Wing Ribs At 09:21 AM 4/23/97 -0400, you wrote: Michael, do you know if the Diehl wing skins (which I will be using) do >the same type thing? > >Jim Hayward > NO they don't, the Diehl skins work very well because the are a true composite structure with layups on both sides and therefore much stiffer! ------------------------------ Date: Wed, 23 Apr 1997 16:17:57 -0700 From: "David M. Gargasz" Subject: Re: KR: Nifty Stuff DAmbrose12@aol.com wrote: > > Hi: > > If you check the speed shops they have high performance filters > available. I think they are from K&N. They are glass see thru type and the > advertisement reads > " Polish your fuel" . That would imply clean but I don't have the specs. > > Regards Dennis hi Gene here, Beware of speed shop claims, 1985 CADY 4.1 3/8 Fittings,should cobble up with your system. There is enough room at both ends to cut and flair whatever, around 20 bucks Murry's auto stores. Gene Gargasz % dave@erirnet.net ------------------------------ Date: Wed, 23 Apr 1997 14:10:20 -0700 From: Mike Stearns Subject: KR: Still for sale... Times New RomanDear KR-Netters: Here are the prices for parts as requested. Some have not been set yet, but if you're interested, please e-mail me. I'll check my invoices. Most parts are new, and I'll sell them at least 15%-20% below what I paid for them. Mike Stearns 714-996-7349 Custom leather interior upholstery JUST SOLD =09 David Carrol dual control stick for KR-2S $295 Continental O-200 engine $4995 =B7 mid-time since 1st overhaul =B7 excellent logs =B7 all accessories Continental O-200 KR-2S Engine Mount $345 Rand Robinson spring aluminum landing gear & mounting brackets predrilled for Clevelands $495 Great American 60x68 wooden prop (about 20 hours) $180 6 Prop bolts $18 6" prop extension for Continental O-200 engine $200 Gel-cell battery (1.5 years old but never used) $45 Throttle with cable $TBD Mixture control with cable $TBD Carb Heat control with cable $TBD Several feet of Nyloflo $TBD 2 KR-2S wheel pants (new) $175 Fuel system primer $TBD Split master switch $10 Rheostat dimmer for panel lights $TBD =20 EGT, Oil pressure, Duel fuel and other guages $TBD Custom handcrafted fiberglass panel (for center radio stack and no vacuum system) for KR-2S $125 Top half of premolded stub wing skins $250 Extruded aluminum aileron assemblies $30 1 complete set KR-2S wing attach fittings $185 ------------------------------ Date: Wed, 23 Apr 1997 14:16:32 -0700 From: R Covington Subject: Re: KR: wing foam >In a message dated 97-04-22 12:00:02 EDT, you write: > ><< >Are you sure the deformation was due to the lack of foam and not that the > >wing was too airtight and thus expanded with the altitude and resulting > >trapped higher air pressure? > > > >This is one thing to make sure of when you build your wings;they need to > >vent to the outside air to prevent the expansion. Just run the vent through > >your wing to your nav lights on the ends. > > > > Im positive, we were only at 900 feet or so and it varied with speed. > >> > >I'll back Mike up on his observations. I too flew with Troy (befrore Mike >did) and saw the same thing. Foam must have been a bit thin betwist the 'ol >ribs. > >Randy Stein >BSHADR@aol.com Is this a lengthwise type distortion? Like the spars are bending somewhat and the panels are bunching up on top, or a chordwise distortion? Funky. Seems to me that something has delaminated from the foam! ;) Would speak well for a solid foam leading edge at least I guess. Will troubles never cease. Robert Covington ------------------------------ Date: Wed, 23 Apr 1997 16:19:59 -0600 From: cartera@cuug.ab.ca Subject: Re: KR: wing foam On Wed, 23 Apr 1997, R Covington wrote: >>In a message dated 97-04-22 12:00:02 EDT, you write: >> >><< >Are you sure the deformation was due to the lack of foam and not that the >> >wing was too airtight and thus expanded with the altitude and resulting >> >trapped higher air pressure? >> > >> >This is one thing to make sure of when you build your wings;they need to >> >vent to the outside air to prevent the expansion. Just run the vent through >> >your wing to your nav lights on the ends. >> > >> >> Im positive, we were only at 900 feet or so and it varied with speed. >> >> >> >>I'll back Mike up on his observations. I too flew with Troy (befrore Mike >>did) and saw the same thing. Foam must have been a bit thin betwist the 'ol >>ribs. >> >>Randy Stein >>BSHADR@aol.com > > >Is this a lengthwise type distortion? Like the spars are bending somewhat >and the panels are bunching up on top, or a chordwise distortion? Funky. > >Seems to me that something has delaminated from the foam! ;) Would speak >well for a solid foam leading edge at least I guess. > >Will troubles never cease. > >Robert Covington > > Hey Guys don't make too much of this. Every aircraft does it J3 up to a 747 this is called the "oil canning effect" due to the low pressure overtop of the wing and the lift. If you fly a high wing you don't see it. I you fly a low wing it is evident. That is why the rivits are so close on a metal aircraft and you have a certain interval in rib stiching on a fabric aircraft. Don't get so excited about it, it's normal. Providing it does not move up 3". Adrian VE6AFY cartera@cuug.ab.ca http://www.cuug.ab.ca:8001/ ------------------------------ Date: Wed, 23 Apr 1997 07:43:57 -0700 From: Donald Reid Subject: Re: KR: Possible builder...(NOT FOR ARCHIVE) Micheal Mims wrote: > > I have about, lets see..... maybe 300 hours into mine so far. I don't think > 2600 is typical, as a mater of fact it may be a world record! KRs have been > built in as little as 30 days and as long as....... 3000hrs when the one > above gets done! :-) > > I think 1500 to 2000 is more the norm and Im sure some of the other > builder/flyers will comment. Lets see 2600 hours is 4 hours everyday for > almost 2 years. Hummm........... I honestly think I could built a KR in > three months If I could work on it full time and had a helper (that's about > 1000hrs), after all it has been done. > So far it has been 49 months and I average ~3.5 hours per day when I work on it. I have never skipped more than ~3 days without making some progress. All time logged. I throw away a lot of pieces that aren't perfect and it is 100% scratch built except for the canopy (which I tried to make). Prefab parts would speed the process a lot. Good work is easy, perfect takes a lot longer. It is just what you want to do that counts. Don Reid donreid@erols.com ------------------------------ Date: Wed, 23 Apr 1997 22:18:54 -0400 (EDT) From: JEHayward@aol.com Subject: Re: KR: Wood Repair In a message dated 97-04-22 22:51:50 EDT, you write: << My shipment of spruce was damaged during shipment and one of the longerons > has a split about 4 inches long and about 3/16 inch from the edge. This > damage is located about mid-length. Apparently the freight company tried to > repair the crate and drove a small nail into the piece. > > I've thought about injecting some epoxy into this crack and clamping it. > Any comments on this would be appreciated. > > Austin Clark >> Hi Austin... I had a lower longeron split on my KR2-S when I was trimming the excess side panels with a hand plane. I had no bottom covering on the fuselage and had stepped inside thru the bottom. As I was getting out, my foot caught the crossmember that is just aft of the rear wing spar opening. It popped and I knew what that meant. Sure enough, I had a crack about 3" long. As I was flexing the crossmember to check the crack, the OTHER side popped!!! I couldn't believe it! I stopped and called one of the FAA inspectors who is in our EAA chapter. He came over, looked at it and said, "No problem." He had me go to Ace Hardware and get some superglue and run some joint tests consisting of the drying/working time of the stuff in the joint without air being blown on it and with (in case we had to use air to blow the superglue into the crack if it wouldn't wick into it). I had about 10 minutes without air and about 3 minutes with air on it....more than adequate. We fixed both longeron cracks at the same time. Although he said that was all that was needed, I made a couple of triangular gussets to install when the aft spar goes in. Jim Hayward ------------------------------ Date: Wed, 23 Apr 1997 19:16:26 -0700 From: Micheal Mims Subject: Re: KR: wing foam At 02:16 PM 4/23/97 -0700, you wrote: >Is this a lengthwise type distortion? Like the spars are bending somewhat >and the panels are bunching up on top, or a chordwise distortion? Funky. NO its more like how you described it at first, it looks like someone hooked up an air hose to teach panel and filled it with 200 psi! ------------------------------ Date: Wed, 23 Apr 1997 19:59:27 -0700 From: Ross Youngblood Subject: KR: [Fwd: Re: Nifty Stuff] This is a multi-part message in MIME format. - --------------402D7D7157E2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit - -- Ross Youngblood KRNET-L administrator mailto:rossy@teleport.com http://www.teleport.com/~rossy/N541RY.htm - --------------402D7D7157E2 Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Return-Path: rhard@dtc.net Received: from dtc.net (dtc.net [206.242.217.15]) by greta.teleport.com (8.8.5/8.7.3) with ESMTP id PAA03505 for ; Wed, 23 Apr 1997 15:28:00 -0700 (PDT) Received: from p46.ts1.dtc.net (p16.ts1.dtc.net [205.183.130.16]) by dtc.net (8.8.5/8.8.5) with SMTP id WAA21786 for ; Wed, 23 Apr 1997 22:29:48 GMT Received: by p46.ts1.dtc.net with Microsoft Mail id <01BC500C.18754720@p46.ts1.dtc.net>; Wed, 23 Apr 1997 17:30:53 -0500 Message-ID: <01BC500C.18754720@p46.ts1.dtc.net> From: RICK To: "'Ross Youngblood'" Subject: RE: Nifty Stuff Date: Wed, 23 Apr 1997 17:30:20 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-UIDL: c81d4496acb499638c759d9bb4e942d9 X-Mozilla-Status: 0011 Ross, Hi my name is Rick Harding from Wichita Ks. I'm new to the KR net and = really don't know how to send out information to everyone. I bought a = KR-2 kit that is about 25% completed. It has the RR retract gear system = however after reading all the message traffic about it I decided to use = the fixed gear setup from Diehl. I've already bought the system and = would like to sell the RR retract system to anyone who needs it. I have the following items: Cast aluminum gear parts undrilled=20 Hydraulic brakes=20 Aluminum wheels with hyd brakes Aluminum axles with bolts Other misc parts already machined from aluminum I would like to sell all of these parts for 300.00 if you know of = anyone who needs them. They can call me at 316-776-0701 or email me = Rhard@dtc.net Thanks for your help and keep up the net. - ---------- From: Ross Youngblood[SMTP:rossy@teleport.com] Sent: Tuesday, April 22, 1997 10:52 PM To: krnet-l@teleport.com Subject: KR: Nifty Stuff I have two FRAM glass see-through filters for each wing tank, but my Ellison TBI specified filtering the fuel down to 70 microns or finer. The see through filters don't specify the filtering, but I don't think they are down to 70 microns. I found a nice AC delco fuel filter for a little over $8.00 it has threaded 3/8" fittings on both ends. This mates up with a hardware store flavor 3/8" flared fitting nipple which happens to also fit into the fuel shutoff I purchased from ACS. Now... does anyone have an idea of how good automotive filtering is? This is a GF-481. My expectations are that if you looked for a filter for fuel injected engines that you might get 70 microns or better. But I'm thinking that for $8.00 this isn't quite good enough. I'm not sure I want to spring for the $80.00 filter in the ACS catalog recommended for the Ellison. I may give the folks at Ellison a call. Anyone have a feel for how good automotive fuel filters are? -- Ross - --=20 Ross Youngblood KRNET-L administrator mailto:rossy@teleport.com http://www.teleport.com/~rossy/N541RY.htm ------------------------------ Date: Thu, 24 Apr 1997 02:21:31 -0400 (EDT) From: RDefrain@aol.com Subject: KR: KR sides Just finished reading my e-mail from the list and got to pondering something. Would it be possible to construct the sides of a thin (1/4" or so) foam and cover it with a thin layer of glass on both sides. ? #1 would it be strong enough. ? #2 would it bond properly to the wood airframe. Just thought I'd throw out some horse feed. Ralph D ------------------------------ Date: Thu, 24 Apr 1997 02:21:29 -0400 (EDT) From: RDefrain@aol.com Subject: Re: KR: Wood Repair (not a keeper for Archives) Another suggestion I would consider is to make the repair as Ross stated (the slope method) and try to locate it where the double longerons are. Ralph D ------------------------------ Date: Wed, 23 Apr 1997 23:53:26 -0700 From: Ross Youngblood Subject: Re: KR: Wood Repair (not a keeper for Archives) RDefrain@aol.com wrote: > > Another suggestion I would consider is to make the repair as Ross stated (the > slope method) and try to locate it where the double longerons are. > > Ralph D I second that idea. I'd make my scarf joint there as well. -- Ross - -- Ross Youngblood KRNET-L administrator mailto:rossy@teleport.com http://www.teleport.com/~rossy/N541RY.htm ------------------------------ Date: Thu, 24 Apr 1997 04:21:14 From: Austin Clark Subject: Re: KR: Wood Repair (not a keeper for Archives) At 23:53 4/23/97 -0700, you wrote: >RDefrain@aol.com wrote: >> >> Another suggestion I would consider is to make the repair as Ross stated (the >> slope method) and try to locate it where the double longerons are. >> >> Ralph D > >I second that idea. I'd make my scarf joint there as well. > -- Ross >-- >Ross Youngblood >KRNET-L administrator >mailto:rossy@teleport.com >http://www.teleport.com/~rossy/N541RY.htm > > Thanks for all the comments. Since this piece has not been installed (glued) yet, I will make the scarf joint. It will be located in a straight section of the fuselage. If I had this damage at a stage of construction like Jim mentioned, I would feel comfortable with injecting epoxy into the crack. Austin Clark ------------------------------ Date: Thu, 24 Apr 1997 05:58:47 -0500 From: Bobby Muse Subject: Re: KR: KR Wing Ribs At 08:40 AM 4/22/97 -0500, you wrote: >> >I am curious about the load carrying properties of the wing ribs and >> >wing skin as opposed to the wooden spars. Are the ribs structural? >> > >> >Ron Lee >> > >> >> Structural? Well in a way, they are. If you have ever flown in a KR you >> will notice the top wing skin bows up quite a bit at higher speeds. The >> fiberglass skin attached to the spars and the underside of the foam >> connected to the ribs keeps this from getting out of control. >I am curious about the wing bowing line that has been talked about. I have never noticed my wing bowing even in a 200 mph pass. This may be because of the extra layer of 4 oz glass I used over the entire wing or it may not. Do any of the other flying KR's wings bow - or - am I just >too happy in the KR to really notice that mine are bowed? > >Jim Faughn >N891JF > I have never seen any bow in my wings, but I'm not even sure of what a bow is. At over 200mph dives, the wings look the same as they do at 70mph. Also they look the same at 12,000 feet as they do on the ground. Sometimes based upon the sunlight, the wings show the spar line but that is a construction/finishing issue. Bobby Muse bmuse@mindspring.com ------------------------------ Date: Thu, 24 Apr 1997 07:47:19 -0400 (EDT) From: Baleco@aol.com Subject: Re: KR: wing foam In a message dated 97-04-23 20:19:59 EDT, you write: << Hey Guys don't make too much of this. Every aircraft does it J3 up to a 747 this is called the "oil canning effect" due to the low pressure overtop of the wing and the lift. If you fly a high wing you don't see it. I you fly a low wing it is evident. That is why the rivits are so close on a metal aircraft and you have a certain interval in rib stiching on a fabric aircraft. Don't get so excited about it, it's normal. Providing it does not move up 3". >> No way! On wing panels that short, if it's distorted enough to see it by eye it better be on the ground. If this is NORMAL, then perhaps I'm glad I'm not beyond ripping wood. A KR is not for me! I've flown the Sonerai at 160mph and never saw a deflection, distortion, deformation or whatever you want to call it. I can't believe this is normal. Marty N49WE ------------------------------ End of krnet-l-digest V1 #1 ***************************