From: krnet-bounces+johnbou=speakeasy.net@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 68 Date: 8/11/2004 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. Linear Actuator (rparker) 2. Fittings (Dana Overall) 3. RE: How many hours (Stephen Jacobs) 4. RE: Linear Actuator (Dana Overall) 5. incidence, fuel system (Mark Langford) 6. RE: incidence, fuel system (Mark Jones) 7. Low Static RPM (John Bouyea) 8. RE: incidence, fuel system (Stephen Jacobs) 9. Re: incidence, fuel system (Mark Langford) 10. Re: Low Static RPM (Scott Cable) 11. Re: Low Static RPM (Mark Langford) 12. RE: Low Static RPM (Stanley Mello) 13. Re: Linear Actuator (Kenneth L Wiltrout) 14. In case you don't know... (Mark Jones) 15. Re: Linear Actuator (Scott Cable) 16. Re: Low Static RPM (Orma) 17. Static RPM (Colin & Bev Rainey) 18. Interesting Paint web sitre (Jim Morehead) 19. Re: incidence, fuel system (TNCOMPRESSORMAN@aol.com) ---------------------------------------------------------------------- Message: 1 Date: Wed, 11 Aug 2004 05:32:02 -0500 From: "rparker" Subject: KR> Linear Actuator To: krnet@mylist.net Message-ID: <20040811103202.23764.qmail@server278.com> Content-Type: text/plain; charset="iso-8859-1" FYI, Mark Jones turned me on to a linear actuator for his belly flap and I managed to find a decent looking one for $110 + $22 for a nice 2 way rocker switch and relays from Wizard Automotive in Fla. I believe the units sell for $280 through the company that makes that flying peice of cookie cutter sheet metal that Dana has in his garage. - Those things took up entirely too much real estate at OSH ! you've seen one, you've seen them all. ;--) 12vdc, 13 inches of travel, 110 pounds of force. Be careful you dont bind it against something or it will rip itself off its mounts! I can send pictures or more info if desired. (I'm not selling them) I did however pickup locally a Ragwing Special project from a family that the builder passed away. I'll let it go to a Kr net member for my cost of $1500. engine prop, gear etc included. I figure their is less than 150 hours of build time left and it should be worth between $12 and $15K E-mail me at rparker@wwhotspots.com for details. Rich Parker Peterborough, NH ------------------------------ Message: 2 Date: Wed, 11 Aug 2004 07:04:08 -0400 From: "Dana Overall" Subject: KR> Fittings To: krnet@mylist.net Message-ID: Content-Type: text/plain; format=flowed Check out this great selection of fittings I just found. As you can tell, I'm deep into rotary engine final rebuild and install. Don't know about the prices, but the selection is sure present. It will at least let you know if what you are looking for is actually an animal. http://www.livermoreperformance.com/XRP_Adapters.html#Special Dana Overall 1999 & 2000 National KR Gathering host Richmond, KY i39 RV-7 slider, Imron black, "Black Magic" Finish kit 13B Rotary. Hangar flying my Dynon. http://rvflying.tripod.com/aero1.jpg http://rvflying.tripod.com/aero3.jpg http://rvflying.tripod.com/blackrudder.jpg do not archive ------------------------------ Message: 3 Date: Wed, 11 Aug 2004 13:05:22 +0200 From: "Stephen Jacobs" Subject: RE: KR> How many hours To: "'KRnet'" Message-ID: <000001c47f93$1c611120$c564a8c0@home> Content-Type: text/plain; charset="us-ascii" After 13 years of building I'm not about to quit with the finish line in site. ++++++++++++++++ After 13 years you certainly deserve all the fun you are having. Your bird (and Chris Gardiner's) are my constant motivation - I look at them regularly. Hard to believe that they are both almost stock - the cabin looks pretty spacious in the pictures that show you seated (and grinning). A message for those that want to re-design the bird - stretch it a few inches, widen the cabin (and FW) - and get it dome quick. The only KR question mark remaining will become clear when flink dink flies 56ML - this should provide clarity on the incidence set-up. Take care Steve J ------------------------------ Message: 4 Date: Wed, 11 Aug 2004 07:21:38 -0400 From: "Dana Overall" Subject: RE: KR> Linear Actuator To: krnet@mylist.net Message-ID: Content-Type: text/plain; format=flowed >From: "rparker" >Mark Jones turned me on to a linear actuator for his belly flap and I >managed to find a decent looking one for $110 + $22 for a nice 2 way >rocker switch and relays from Wizard Automotive in Fla. I believe the units >sell for $280 through the company that makes that flying peice of cookie >cutter sheet metal that Dana has in his garage. - Those things took up >entirely too much real estate at OSH ! you've seen one, you've seen them >all. ;--) Actually I represent that statement!! I'll help you out here, if it was supplied by the evil empire prior to 1/2002 it was manufactured by Motion Systems. If it was supplied post 1/2002 it is manufactured by the metal madness company themselves. Looking to be on the wing of a particular KR from Alabama next year as the my new drive unit/engine configuration should pull this ol kitchen appliance along at somewhere around 220MPH, which I have a feeling it's going to have to do to keep up, with a proven 2900FPM climb at gross. Come to think of it Rich, it's not going to be my garage much longer, relatively speaking. Autopilot engaged, computer engine control controlling fuel flow and mixture and fire, engine monitering system watching over my gold powder coated baby, Monroy traffic detector keeping an eye open, weather and terrain showing on my 430, watching Top Gun on the LCD screen with stereo on the headsets............................eating cookies just may be in order:-) Sorry, couldn't resist.............he who dies with the most toys wins!! Dana Overall 1999 & 2000 National KR Gatheirng host Richmond, KY i39 RV-7 slider, Imron black, "Black Magic" Finish kit 13B Rotary. Hangar flying my Dynon. http://rvflying.tripod.com/aero1.jpg http://rvflying.tripod.com/aero3.jpg http://rvflying.tripod.com/blackrudder.jpg do not archive ------------------------------ Message: 5 Date: Wed, 11 Aug 2004 06:48:35 -0500 From: "Mark Langford" Subject: KR> incidence, fuel system To: "KRnet" Message-ID: <013e01c47f99$225a8ce0$5e0ca58c@net.tbe.com> Content-Type: text/plain; charset="iso-8859-1" Steve Jacobs wrote: > The only KR question mark remaining will become clear when flink dink > flies 56ML - this should provide clarity on the incidence set-up. I'm not sure that one's still a question mark. Troy built in 1 degree of incidence and one degree of washout into his KR2 (not S) using the AS5046 airfoil three years ago. There's a picture at the top of http://home.hiwaay.net/~langford/troy/ that shows Troy doing a 230 mph flyby with elevator perfectly in line with the horizontal stab, and fuselage parallel to the runway. It stalls gently and with no wing drop. His has the stock zero degree horizontal stab incidence. I have twice as much washout, but then my ailerons are only on the outer half of the wing. We'll see how it goes, but Troy is convinced that mine is going to be one fine flying KR. I can't wait either! I should probably mention that what works for a fast plane is probably not optimal for a slow one, but optimizing incidence is a step on the road to making a slow plane faster. I'm in the midst of completely redoing my fuel system after I managed to vapor lock it Sunday. It was 92 degrees and I was doing full throttle runs in my driveway, so maybe that's to be expected, but I'd rather not start out with a vapor lock problem. My old fuel system ran from passenger wing tank to passenger's side bottom of the firewall, up over the top (to avoid the exhaust), and then down to the pilot's side where the filter was. That high part was an invitation for fuel vapors to form. Of course I didn't even have fire shield on it yet, so that alone might have fixed it, but the reroute will allow me to do everything I've wanted to do with it, including adding a primer system. More on all of that later, but suffice it to say that I now have a totally redundant fuel system, from tank pickup to carb inlet. With the flip of one switch, I can swap out my complete ignition system (other than spark plugs) AND my entire fuel system (other than carb), and concentrate on flying the plane. I'll do a web update on that, but right now I'm trying to get it back in running shape for the local EAA chapter meeting that will be at my house next Tuesday night... flink dink, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Message: 6 Date: Wed, 11 Aug 2004 07:21:23 -0500 From: Mark Jones Subject: RE: KR> incidence, fuel system To: 'KRnet' Message-ID: <370D915E4564D611B0530050DABB9FC201902AF8@SIC-EXCHANGE> Content-Type: text/plain What's a "Flink Dink"? Are you now branded with that nickname? Could There be a Tee Shirt in the making here? Will you be dubbing N56ML the "Flink Flyer"? Mark Jones -----Original Message----- From: Mark Langford [mailto:n56ml@hiwaay.net] Sent: Wednesday, August 11, 2004 6:49 AM To: KRnet Subject: KR> incidence, fuel system Steve Jacobs wrote: > The only KR question mark remaining will become clear when flink dink > flies 56ML - this should provide clarity on the incidence set-up. I'm not sure that one's still a question mark. Troy built in 1 degree of incidence and one degree of washout into his KR2 (not S) using the AS5046 airfoil three years ago. There's a picture at the top of http://home.hiwaay.net/~langford/troy/ that shows Troy doing a 230 mph flyby with elevator perfectly in line with the horizontal stab, and fuselage parallel to the runway. It stalls gently and with no wing drop. His has the stock zero degree horizontal stab incidence. I have twice as much washout, but then my ailerons are only on the outer half of the wing. We'll see how it goes, but Troy is convinced that mine is going to be one fine flying KR. I can't wait either! I should probably mention that what works for a fast plane is probably not optimal for a slow one, but optimizing incidence is a step on the road to making a slow plane faster. I'm in the midst of completely redoing my fuel system after I managed to vapor lock it Sunday. It was 92 degrees and I was doing full throttle runs in my driveway, so maybe that's to be expected, but I'd rather not start out with a vapor lock problem. My old fuel system ran from passenger wing tank to passenger's side bottom of the firewall, up over the top (to avoid the exhaust), and then down to the pilot's side where the filter was. That high part was an invitation for fuel vapors to form. Of course I didn't even have fire shield on it yet, so that alone might have fixed it, but the reroute will allow me to do everything I've wanted to do with it, including adding a primer system. More on all of that later, but suffice it to say that I now have a totally redundant fuel system, from tank pickup to carb inlet. With the flip of one switch, I can swap out my complete ignition system (other than spark plugs) AND my entire fuel system (other than carb), and concentrate on flying the plane. I'll do a web update on that, but right now I'm trying to get it back in running shape for the local EAA chapter meeting that will be at my house next Tuesday night... flink dink, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML 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 ------------------------------ Message: 7 Date: Wed, 11 Aug 2004 07:21:34 -0700 From: "John Bouyea" Subject: KR> Low Static RPM To: "KRNet" Message-ID: <00a801c47fae$81cbca30$a800a8c0@dell4600> Content-Type: text/plain; charset="us-ascii" I'm writing for an owner of a new-to-the-area-KR2. He has a Hapi 1835 on his relatively plans-built KR2. Static engine runs are showing only 2400 RPM with a Props Inc. 54 x 47 prop. I'm thinking it is over-pitched. So far Fred has: * done a compression check and found all in the mid 70's * verified the timing is correctly set * they are replacing the intake filter and replacing the suspect carb. I've encouraged pulling the twin 2 into 1 exhausts to inspect for any possible blockage. Besides a possible (probable?) bad tach, what other areas should Fred and his A&P be looking for that might cause this issue? Thanks and I'll forward your replies to email-less Fred! John Bouyea KR2 - hanging the engine accessories KR2S - boat hanging from the rafters www.bouyea.net ------------------------------ Message: 8 Date: Wed, 11 Aug 2004 16:26:29 +0200 From: "Stephen Jacobs" Subject: RE: KR> incidence, fuel system To: "'KRnet'" Message-ID: <000001c47faf$3531d880$6464a8c0@home> Content-Type: text/plain; charset="us-ascii" I'm not sure that one's still a question mark. ++++++++++++++++++++++++ Roger that Mark - thanks. I should have remembered, you did point this out when you posted the pics. A pretty good set-up (proven set-up): Engine and stab zero - zero; the wing plus one and twisted minus one. Any time a 200+ mph bird has a gentle, straight ahead stall, somebody did something right. I gather from your email that Troy used the 16% at both ends? I cannot imagine that much will change if an 18% /15% config is used. The way Troy does his elevator looks really off-beat, but it seems to work well - just no Aero D balance tabs. Do you know if he has static balance weights? How are you adding a primer system to the Vair? I suppose most of the carbs available for aero use don't have a choke. Your engine installation is really something Mark, but after you suckered me with a photograph (on the panel), I will be cautious with my questions, never know. Steve J Zambia ------------------------------ Message: 9 Date: Wed, 11 Aug 2004 09:40:14 -0500 From: "Mark Langford" Subject: Re: KR> incidence, fuel system To: "KRnet" Message-ID: <014c01c47fb1$1f9e8d40$5e0ca58c@net.tbe.com> Content-Type: text/plain; charset="iso-8859-1" Steve Jacobs wrote: > I gather from your email that Troy used the 16% at both ends? I cannot > imagine that much will change if an 18% /15% config is used. Yes, 16% all the way, because he already had stock spars from his previous RAF48 wings. > The way Troy does his elevator looks really off-beat, but it seems to > work well - just no Aero D balance tabs. Do you know if he has static > balance weights? No balance weights. He had it balanced before with tip weights( http://home.hiwaay.net/~langford/ktp1.jpg ), but removed the weights at the same time he did all the other tail work (just to save weight, I think, but so far he's proved it's not necessary). I suppose one could imagine that the deletion of the aerodynamic balances might be part of his reported "sensitivity improvement" after flying with all the mods. > How are you adding a primer system to the Vair? I suppose most of the > carbs available for aero use don't have a choke. I'm plumbing into the fuel line (which is already pressurized by a Facet pump) with a tee that's screwed into an electric primer solenoid. Push a button and it sprays fuel into each intake manifold through some special primer fittings that have orifices built in (in case the tubing breaks, so you won't have a huge vacuum leak). My Ellison simply won't start without a primer, although Mark Jones doesn't have that problem for some reason. > Your engine installation is really something Mark, but after you > suckered me with a photograph (on the panel), I will be cautious with my > questions, never know. He's talking about the $7500 Apollo GPS on my panel in the photo at http://home.hiwaay.net/~langford/panel.jpg , which is just a photo printed out full scale. I put that on there to answer the question "what's with the big blank spot in the middle". That space is reserved for some kind of big screen GPS that I'll buy later on, but until my 40 hours is flown off, my GPS 195 will do. Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Message: 10 Date: Wed, 11 Aug 2004 10:03:26 -0700 (PDT) From: Scott Cable Subject: Re: KR> Low Static RPM To: KRnet Message-ID: <20040811170326.66601.qmail@web53005.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii John, Netters & Fred: Sounds to me like the engine is sick...Mid 70's compression is too low. Either you have some rings that are not seated, valves too tight or you may have some burned or unseated valves or valve seats. A compression test is good, a leak-down test is always better. Do a leak-down test on the engine to determine the cause of low power. If engine is new, or recently rebuilt, check the intake and exhaust ports for blockage, it wouldn't be the first time someone has fired an engine with rags or paper towels crammed into the ports. Hope this helps... John Bouyea wrote: I'm writing for an owner of a new-to-the-area-KR2. He has a Hapi 1835 on his relatively plans-built KR2. Static engine runs are showing only 2400 RPM with a Props Inc. 54 x 47 prop. I'm thinking it is over-pitched. So far Fred has: * done a compression check and found all in the mid 70's * verified the timing is correctly set * they are replacing the intake filter and replacing the suspect carb. I've encouraged pulling the twin 2 into 1 exhausts to inspect for any possible blockage. Besides a possible (probable?) bad tach, what other areas should Fred and his A&P be looking for that might cause this issue? Thanks and I'll forward your replies to email-less Fred! John Bouyea KR2 - hanging the engine accessories KR2S - boat hanging from the rafters www.bouyea.net _______________________________________ to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html Scott Cable KR-2S # 735 Wright City, MO s2cable1@yahoo.com --------------------------------- Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! ------------------------------ Message: 11 Date: Wed, 11 Aug 2004 12:13:15 -0500 From: "Mark Langford" Subject: Re: KR> Low Static RPM To: "KRnet" Message-ID: <017201c47fc6$7e9ff1c0$5e0ca58c@net.tbe.com> Content-Type: text/plain; charset="iso-8859-1" Scott Cable wrote: > Sounds to me like the engine is sick...Mid 70's compression is too low. Either you have some rings that are not seated, valves too tight or you may have some burned or unseated valves or valve seats. I feel pretty sure that what he's talking about IS a leakdown test, in which case, mid 70's would be considered pretty good. I think that was his point, that the compression was good. After making sure the engine was running correctly, I'd suspect too much prop. Borrow one with less pitch from somebody and see how yours does with it. There's a list with a few props on it at http://home.hiwaay.net/~langford/props.html , and one 1835cc guy is using a 52x42. It would be good of I could get some more input from flying KR's to add to the list... Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Message: 12 Date: Wed, 11 Aug 2004 11:03:54 -0700 From: "Stanley Mello" Subject: RE: KR> Low Static RPM To: krnet@mylist.net Message-ID: Content-Type: text/plain; format=flowed I to had the same problem with that same prop and engine combination. The fix was change the prop. I thought I had something wrong with my engine and could never find out what it was. Tried everything. Finaly went to an Ed Sterba 52X42 anfd every thing was OK. Found out later that others have had the same problrem with the Props INC prop. >From: "John Bouyea" >Reply-To: KRnet >To: "KRNet" >Subject: KR> Low Static RPM >Date: Wed, 11 Aug 2004 07:21:34 -0700 > >I'm writing for an owner of a new-to-the-area-KR2. He has a Hapi 1835 on >his relatively plans-built KR2. Static engine runs are showing only 2400 >RPM with a Props Inc. 54 x 47 prop. I'm thinking it is over-pitched. > > > >So far Fred has: > >* done a compression check and found all in the mid 70's > >* verified the timing is correctly set > >* they are replacing the intake filter and replacing the suspect carb. > > > >I've encouraged pulling the twin 2 into 1 exhausts to inspect for any >possible blockage. Besides a possible (probable?) bad tach, what other >areas should Fred and his A&P be looking for that might cause this issue? > > > >Thanks and I'll forward your replies to email-less Fred! > > > >John Bouyea > >KR2 - hanging the engine accessories > >KR2S - boat hanging from the rafters > > > >www.bouyea.net > > > > > >_______________________________________ >to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net >please see other KRnet info at http://www.krnet.org/info.html _________________________________________________________________ Check out Election 2004 for up-to-date election news, plus voter tools and more! http://special.msn.com/msn/election2004.armx ------------------------------ Message: 13 Date: Wed, 11 Aug 2004 14:25:15 -0400 From: Kenneth L Wiltrout Subject: Re: KR> Linear Actuator To: krnet@mylist.net Message-ID: <20040811.142516.2304.0.klw1953@juno.com> Content-Type: text/plain; charset=us-ascii While building 6399U I also looked at linear actuator"s but after seeing how slowly they worked I went to a manual setup. My concern was in the event of a botched landing and the need to get slippery real fast for a go around and clear trees or whatever, the 5 to 10 sec these things take to travel was not acceptable. On Wed, 11 Aug 2004 07:21:38 -0400 "Dana Overall" writes: > >From: "rparker" > >Mark Jones turned me on to a linear actuator for his belly flap and > I > >managed to find a decent looking one for $110 + $22 for a nice 2 > way > >rocker switch and relays from Wizard Automotive in Fla. I believe > the units > >sell for $280 through the company that makes that flying peice of > cookie > >cutter sheet metal that Dana has in his garage. - Those things took > up > >entirely too much real estate at OSH ! you've seen one, you've seen > them > >all. ;--) > > > Actually I represent that statement!! I'll help you out here, if it > was > supplied by the evil empire prior to 1/2002 it was manufactured by > Motion > Systems. If it was supplied post 1/2002 it is manufactured by the > metal > madness company themselves. Looking to be on the wing of a > particular KR > from Alabama next year as the my new drive unit/engine configuration > should > pull this ol kitchen appliance along at somewhere around 220MPH, > which I > have a feeling it's going to have to do to keep up, with a proven > 2900FPM > climb at gross. > > Come to think of it Rich, it's not going to be my garage much > longer, > relatively speaking. > > Autopilot engaged, computer engine control controlling fuel flow and > mixture > and fire, engine monitering system watching over my gold powder > coated baby, > Monroy traffic detector keeping an eye open, weather and terrain > showing on > my 430, watching Top Gun on the LCD screen with stereo on the > headsets............................eating cookies just may be in > order:-) > Sorry, couldn't resist.............he who dies with the most toys > wins!! > > > Dana Overall > 1999 & 2000 National KR Gatheirng host > Richmond, KY i39 > RV-7 slider, Imron black, "Black Magic" > Finish kit > 13B Rotary. Hangar flying my Dynon. > http://rvflying.tripod.com/aero1.jpg > /rvflying.tripod.com/aero3.jpg > http://rvflying.tripod.com/blackrudder.jpg > do not archive > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > ________________________________________________________________ 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: 14 Date: Wed, 11 Aug 2004 15:09:16 -0500 From: Mark Jones Subject: KR> In case you don't know... To: KR Net Message-ID: <370D915E4564D611B0530050DABB9FC201902AF9@SIC-EXCHANGE> Content-Type: text/plain There are only 43 days till the gathering and only till Sept 1st to book your room at the Holiday in for the group discounted rate of $66 per night. http://krgathering.org/ Mark Jones ------------------------------ Message: 15 Date: Wed, 11 Aug 2004 14:05:45 -0700 (PDT) From: Scott Cable Subject: Re: KR> Linear Actuator To: KRnet Message-ID: <20040811210545.72566.qmail@web53008.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii Netter's: I was able to get the same Linear Actuator from Motion Industries that is used in the RV's. Cost $122 + shipping. I told them that it was for my sprint car wing..... On Wed, 11 Aug 2004 07:21:38 -0400 "Dana Overall" writes: > >From: "rparker" > >Mark Jones turned me on to a linear actuator for his belly flap and > I > >managed to find a decent looking one for $110 + $22 for a nice 2 > way > >rocker switch and relays from Wizard Automotive in Fla. I believe > the units > >sell for $280 through the company that makes that flying peice of > cookie > >cutter sheet metal that Dana has in his garage. - Those things took > up > >entirely too much real estate at OSH ! you've seen one, you've seen > them > >all. ;--) > > > Actually I represent that statement!! I'll help you out here, if it > was > supplied by the evil empire prior to 1/2002 it was manufactured by > Motion > Systems. If it was supplied post 1/2002 it is manufactured by the > metal > madness company themselves. Looking to be on the wing of a > particular KR > from Alabama next year as the my new drive unit/engine configuration > should > pull this ol kitchen appliance along at somewhere around 220MPH, > which I > have a feeling it's going to have to do to keep up, with a proven > 2900FPM > climb at gross. > > Come to think of it Rich, it's not going to be my garage much > longer, > relatively speaking. > > Autopilot engaged, computer engine control controlling fuel flow and > mixture > and fire, engine monitering system watching over my gold powder > coated baby, > Monroy traffic detector keeping an eye open, weather and terrain > showing on > my 430, watching Top Gun on the LCD screen with stereo on the > headsets............................eating cookies just may be in > order:-) > Sorry, couldn't resist.............he who dies with the most toys > wins!! > Scott Cable KR-2S # 735 Wright City, MO s2cable1@yahoo.com --------------------------------- Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. ------------------------------ Message: 16 Date: Wed, 11 Aug 2004 17:09:41 -0400 From: "Orma" Subject: Re: KR> Low Static RPM To: "KRnet" Message-ID: <002d01c47fe7$85fe8780$442bd445@ROBBINS1> Content-Type: text/plain; charset="iso-8859-1" A tach check is a necessary first step especially if the aircraft is new to the owner. A question to also ask is how does the KR perform. What is the dynamic RPM? How much take off run, how many FPM in climb. Can he carry a passenger and if so how many FPM. I ran a Sturba 54X52 on my 1910 type 4 and could get 3000 RPM. I felt that the 54 inch prop was too much. It would seem to me that 47 pitch if accurate would be good. Mid 70's out of 80 on a leak down test is only saying 93 %. I would look for the cylinder leakage and correct for leaking valves or rings especially if the KR was inactive over some period of time. Orma Southfield, MI N110LR Soon to celebrate 20 years ------------------------------ Message: 17 Date: Wed, 11 Aug 2004 20:54:06 -0400 From: "Colin & Bev Rainey" Subject: KR> Static RPM To: "KRnet" Message-ID: <007401c48006$de8ce030$69ee0843@RaineyDay> Content-Type: text/plain; charset="iso-8859-1" Alittle out of my realm of knowledge but I will state an observation that I have made of certified engines. They rarely if ever get anywhere close to their redline on a static engine runup. I would not be too quick to condemn the setup until you did at least a high speed taxi run to see what the prop unloads to. This will be more of a true indication of what it is doing. I am running a 52 X 48 Culver prop and don't see more than 2600 - 2800rpms static. Yet this is the same setup that Dave Selby I believe had on his flying KR2 and did not report any complaints. Our engine is an 1835cc with big jugs so it works out to 1915cc I think. Remember that there needs to be a compromise between static rpm and unloading rpm. Too much static gives a great climb rate and short takeoff, but hurts cruise speed. Too much pitch will or length and pitch will hurt the applied torque, and prevent the engine from being able to deliver maximum torque to the prop. Shorter props do better at higher rpms. Longer props get the tip speed too high, and start to require too much torque to turn the mass instead of make thrust. I read where it was compared to gears in the transmission: too little prop would be like trying to drive everywhere in 1st or 2nd gear, too much prop would be like trying to run around all the time in 4th gear or overdrive. One makes for great takeoff, but slow top speeds, the other makes for very bad takeoffs, and great top speed if you can ever get there. Example: Mooney 20J 200 hp constant speed prop, climbed with near max weight at about 500-750 fpm, but when level at cruise eventually wound up to an indicated 150knots, and at 8000 ft TAS of 162knots. Just some thoughts while waiting for the FAA to get back out to sign off N96TA.... Colin & Bev Rainey KR2(td) N96TA Sanford, FL crainey1@cfl.rr.com http://kr-builder.org/Colin/index.html ------------------------------ Message: 18 Date: Wed, 11 Aug 2004 17:55:24 -0700 From: Jim Morehead Subject: KR> Interesting Paint web sitre To: KR- Net Message-ID: Content-Type: text/plain; charset="ISO-8859-1" Netters, If you have any questions on painting, check out the following PPG Paint web site; www.ppg.com/cr-refinish/phase1/frmHome.asp Under Product Information click on ³Paint Application Defects.² Click the button ³During Application² it shows pictures of 15 different defects like Bleeding, Cissing, Clouding, Orange Peel, etc. Click on the pictures and read Descriptions of each along with 1. Cause 2 Prevention and 3. Rectification. Jim Morehead Cameron Park, CA ------------------------------ Message: 19 Date: Wed, 11 Aug 2004 23:51:15 EDT From: TNCOMPRESSORMAN@aol.com Subject: Re: KR> incidence, fuel system To: krnet@mylist.net Message-ID: Content-Type: text/plain; charset="US-ASCII" In a message dated 8/11/2004 10:41:14 AM Eastern Standard Time, n56ml@hiwaay.net writes: I'm plumbing into the fuel line (which is already pressurized by a Facet pump) with a tee that's screwed into an electric primer solenoid. Push a button and it sprays fuel into each intake manifold through some special primer fittings that have orifices built in (in case the tubing breaks, so you won't have a huge vacuum leak). Mark, and others I am planning on a similar primer arrangement for my Lycoming, and have procured a 12v n.c. solenoid. I was planning to take pressurized fuel from the aux. pump (facet) but am concerned that it will not supply enough pressure (rated 3-5 psi) to atomize the fuel and feed equal volumes of fuel to all 4 intake ports. Should I add a 2nd (higher pressure) pump wired to run when the solenoid is energized, just for the primer. Guess I worry too much about fuel in the cockpit area. Any ideas or suggestions would be appreciated. Thanks Riley Collins Rutledge, TN ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 346, Issue 68 ************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================