From: krnet-bounces+johnbou=speakeasy.net@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 347, Issue 123 Date: 3/24/2005 9:00:22 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. Pitot and Static Line Placement (Kyle Gadd) 2. Re: Pitot and Static Line Placement (Mark Jones) 3. pitot static (Don Chisholm) 4. Re: 2004 Gathering video (Mark Langford) 5. Engine mount fixture (JIM VANCE) 6. Re: Pitot and Static Line Placement (JSMONDAY@aol.com) 7. RE: pitot static (Doug Rupert) 8. Pitot/ Static Line Placement (larry flesner) 9. pitot static placement (Don Chisholm) 10. pitot static placement (Oscar Zuniga) 11. Re: Pitot/ Static Line Placement (P.Byington) 12. Re: 4130 plate (Dene Collett (SA)) 13. Re: 4130 plate grain direction (Brant Hollensbe) 14. Re: pitot static placement (Dan Heath) 15. Pitot/ Static Line Placement (larry flesner) 16. Re: Pitot/ Static Line Placement (Ray Fuenzalida) 17. Tweety update (Orma) 18. RE: Tweety update (Ronald Metcalf) ---------------------------------------------------------------------- Message: 1 Date: Thu, 24 Mar 2005 03:09:30 -0500 From: "Kyle Gadd" Subject: KR> Pitot and Static Line Placement To: Message-ID: Content-Type: text/plain; charset="iso-8859-1" Hello Everybody, I spent my whole weekend putting the guts into my stub wings, then foaming and fiberglassing the underside (the topside was done last week) and now that I've stepped back to admire my artwork I notice that by installing the pitot and static lines just outside the fuselage body instead of at the outer end of the stub wing like the plans suggest, that prop wash might fumble the accuracy of the instruments? Does anyone have experience or any theories on this? I'd rather fix it right away if that's what has to be done. Thanks! Kyle Gadd - Charleston, SC ------------------------------ Message: 2 Date: Thu, 24 Mar 2005 05:43:49 -0600 From: "Mark Jones" Subject: Re: KR> Pitot and Static Line Placement To: "KRnet" Message-ID: <004601c53066$c33735e0$6401a8c0@wi.rr.com> Content-Type: text/plain; charset="iso-8859-1" Kyle, You will absolutely need to get the pitot/static out of the prop wash. Your airspeed indications will definitely be affected. Move then as close to the end of the stub wing as possible or better yet, put them in the outboard wing. Mark Jones (N886MJ...FIRST FLIGHT made 3-20-2005) Wales, WI USA E-mail me at flykr2s@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ----- Original Message ----- From: "Kyle Gadd" To: Sent: Thursday, March 24, 2005 2:09 AM Subject: KR> Pitot and Static Line Placement Hello Everybody, I spent my whole weekend putting the guts into my stub wings, then foaming and fiberglassing the underside (the topside was done last week) and now that I've stepped back to admire my artwork I notice that by installing the pitot and static lines just outside the fuselage body instead of at the outer end of the stub wing like the plans suggest, that prop wash might fumble the accuracy of the instruments? Does anyone have experience or any theories on this? I'd rather fix it right away if that's what has to be done. Thanks! Kyle Gadd - Charleston, SC ---------------------------------------------------------------------------- ---- > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > 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: 3 Date: Thu, 24 Mar 2005 07:23:35 -0500 (EST) From: Don Chisholm Subject: KR> pitot static To: krnet@mylist.net Message-ID: <20050324122335.46172.qmail@web88006.mail.re2.yahoo.com> Content-Type: text/plain; charset=us-ascii I put my pitot static tube setup on the end of my front center spar end. In Sportplane Consruction Techniques page 278 by Tony Bengelis is a good pitot static set- up that adapts easily to fastening to the wing stub Don Chisholm ------------------------------ Message: 4 Date: Thu, 24 Mar 2005 06:24:49 -0600 From: "Mark Langford" Subject: Re: KR> 2004 Gathering video To: "KRnet" Message-ID: <016b01c5306c$79353ae0$5e0ca58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Bill Jeffries wrote: > I've read this post with great jealousy. How do I get > the video. Go to the KRnet search engine at http://www.maddyhome.com/krsrch/index.jsp and type in "video" as the keyword, then look for a message from VideoBob on March 4th that says "2004 KR Gathering Video Available". But the bottom line is: There are three different ways to get a Gathering video. 1. Host a Gathering. (FREE) 2. Fly your plane to the Gathering. (FREE) 3. Send your name and address to Video Bob at: Omega Productions 1050 Parkhurst St. NW Grand Rapids, MI 49504 Include a check for $25 and tell Bob if you want a DVD or VHS tape. Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 5 Date: Thu, 24 Mar 2005 06:35:33 -0600 From: "JIM VANCE" Subject: KR> Engine mount fixture To: "krnet" Message-ID: <000601c5306f$b3b4c980$0700a8c0@oemcomputer> Content-Type: text/plain; charset="iso-8859-1" Steve Bray, Please contact me off net and I will provide you with pictures of the "rocking chair" that I used. Jim Vance Vance@ClaflinWildcats.com ------------------------------ Message: 6 Date: Thu, 24 Mar 2005 10:03:54 EST From: JSMONDAY@aol.com Subject: Re: KR> Pitot and Static Line Placement To: krnet@mylist.net Message-ID: <13f.fc8642e.2f7430da@aol.com> Content-Type: text/plain; charset="US-ASCII" Just curious if anyone has thought of putting the Pitot tube at the top of the tail, and if that would be far enough out of the way of the prop wash? Static ports on both sides of the fuseluge? John Monday KR2S Laguna Beach, CA ------------------------------ Message: 7 Date: Thu, 24 Mar 2005 11:00:38 -0500 From: "Doug Rupert" Subject: RE: KR> pitot static To: "'KRnet'" Message-ID: <001401c5308a$a4fa89f0$bf04e440@office> Content-Type: text/plain; charset="windows-1250" Don I have built access panels into the outer wings so that I'm able to get at all fuel, pitot and static lines after the outer wings have been installed. They are on the bottom of the outer wing right at the WAF area of both front and rear spars. A wooden bulkhead was installed between the fuel tank and first rib and all connections will be mounted there. I have found hydraulic type quick disconnects at Princess Auto of all places that are the perfect size for fuel pickup and return lines and the price was less than $10 each. When disconnection is needed the flexible braided stainless hose is snapped free from both inner and outer wing areas and also act as check valves when disconnected. The pitot and static systems are simply compression fittings likewise mounted to the bulkhead. All outer wing wiring is done using those plug in locking trailer plugs which are a smaller version of those used in tractor trailers. Makes for a nice and neat installation and easy to check that everything is where it should be during inspections. The whole setup for both wings weighs in at under 2 pound addition to aircraft empty weight. Doug Rupert I put my pitot static tube setup on the end of my front center spar end. Don -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 3/18/2005 ------------------------------ Message: 8 Date: Thu, 24 Mar 2005 10:59:55 -0600 From: larry flesner Subject: KR> Pitot/ Static Line Placement To: KRnet Message-ID: <3.0.6.32.20050324105955.007fea50@pop.midwest.net> Content-Type: text/plain; charset="us-ascii" At 10:03 AM 3/24/05 EST, you wrote: >Just curious if anyone has thought of putting the Pitot tube at the top >of >the tail, and if that would be far enough out of the way of the prop wash? >Static ports on both sides of the fuseluge? >John Monday +++++++++++++++++++++++++++++++++++++++++++++++++++++ That has been discussed in the past and may very well work. However, the system outlined in the plans works very well as proven by 130 flight hours on my KR. I'm running a 60 inch prop on the 0-200 so I mounted mine on the inboard end of the outer left wing. It appears accurate to within 1 to 3 mph as measured by my GPS. My only problem is that I have a very wide gear and the assembly is close to any wheel pant I may install. I have it mounted by two #10 screws to a hard point(wood) inside the wing so it's easily removable. I used 5 minute "J.B.Weld" to mount the tubes together and then to the mounting plate which conforms to the wing shape. When I mount my outer wing I run the hoses into the wing and out the mounting hole. I then simply "stuff" the nylon hoses inside the tubes and insert the extra hose up into the wing as I mount the assembly. Make sure to mark you hoses for "S" and "P" !! Trying to reinvent the wheel and the many mod's I made are two of the reasons it took me 13 years to complete my bird !! As much as I enjoyed build, flying is definately a lot more fun. As always, your results may vary........... Larry Flesner ------------------------------ Message: 9 Date: Thu, 24 Mar 2005 13:08:16 -0500 (EST) From: Don Chisholm Subject: KR> pitot static placement To: krnet@mylist.net Message-ID: <20050324180816.83962.qmail@web88011.mail.re2.yahoo.com> Content-Type: text/plain; charset=us-ascii best place to place pitot static is in the leading edge of your wing out of the prop wash area. problem is how do you keep people from walking into it including yourself ( I'm sure everyone on the planet has klutzy moments). I tried it, it didn't last long & no it wasn't me. Don Chisholm ------------------------------ Message: 10 Date: Thu, 24 Mar 2005 12:14:35 -0600 From: "Oscar Zuniga" Subject: KR> pitot static placement To: krnet@mylist.net Message-ID: Content-Type: text/plain; format=flowed >problem is how do you keep people from walking into it including >yourself This has been mentioned here before, but Paul Martin and others solved this by installing a removable pitot probe. Just a short stub of aluminum tube that inserts into a larger piece that's installed in the wing. Part of preflight is to insert the pitot (after removing the plug you've inserted to keep wasps and stuff out). Part of postflight is to remove and stow the pitot probe and stick your plug back in. Needless to say, you also need to have a "remove before flight" streamer on the plug or you won't have airspeed indication of any kind. Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net ------------------------------ Message: 11 Date: Thu, 24 Mar 2005 12:01:37 -0800 From: "P.Byington" Subject: Re: KR> Pitot/ Static Line Placement To: "KRnet" Message-ID: <002901c530ac$4edc5d60$afafe304@Byington> Content-Type: text/plain; charset="iso-8859-1" Netters: I have my pitot tube mounted at the top of the verticle stabilizer and it works just fine. This position induces approximately a 5 mph error (high) on the airspeed indicator as measured against my gps but that is a small price to pay for it being out of the way and not having to worry about someone breaking/bending it when they walk by. Worse than having someone break off the under the wing pitot tube is to have them catch a pant leg on it and fall onto the wing or other such structure that might not survive the incident. Just my two cents worth. Thanks Parley Byington parley@anv.net Henderson Nv N54PB flying since 1991 ----- Original Message ----- From: "larry flesner" To: "KRnet" Sent: Thursday, March 24, 2005 8:59 AM Subject: KR> Pitot/ Static Line Placement > At 10:03 AM 3/24/05 EST, you wrote: > >Just curious if anyone has thought of putting the Pitot tube at the > >top of > >the tail, and if that would be far enough out of the way of the prop wash? > >Static ports on both sides of the fuseluge? > >John Monday > +++++++++++++++++++++++++++++++++++++++++++++++++++++ > > That has been discussed in the past and may very well work. However, > the system outlined in the plans works very well as proven by 130 > flight hours on my KR. I'm running a 60 inch prop on the 0-200 so I > mounted mine on the inboard end of the outer left wing. It appears > accurate to within 1 to 3 mph as measured by my GPS. My only problem > is that I have a very wide gear and the assembly is close to any wheel > pant I may install. I have it mounted by two #10 screws to > a hard point(wood) inside the wing so it's easily removable. > I used 5 minute "J.B.Weld" to mount the tubes together and > then to the mounting plate which conforms to the wing shape. > When I mount my outer wing I run the hoses into the wing > and out the mounting hole. I then simply "stuff" the nylon hoses > inside the tubes and insert the extra hose up into the wing > as I mount the assembly. Make sure to mark you hoses for > "S" and "P" !! > > Trying to reinvent the wheel and the many mod's I made are two of the > reasons it took me 13 years to complete my bird !! As much as I > enjoyed build, flying is definately a lot more fun. > > As always, your results may vary........... > > Larry Flesner > > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > 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: 12 Date: Thu, 24 Mar 2005 22:34:14 +0200 From: "Dene Collett (SA)" Subject: Re: KR> 4130 plate To: "KRnet" Message-ID: <006801c530b0$faac4b60$069fef9b@DeneCollett> Content-Type: text/plain; charset="iso-8859-1" Thanks Brandt, that confirms my suspisions. I want to bend the stuff to its minimum radius so I thought it best to get the grain orientation right to ensure the strongest part possible. Regards ----- Original Message ----- From: Brant Hollensbe To: KRnet Sent: Thursday, March 24, 2005 1:15 AM Subject: Re: KR> 4130 plate > Dene > You are correct. The grain of metal is marked by the manufacture by > the way > they print their name on the sheet ------------------------------ Message: 13 Date: Thu, 24 Mar 2005 16:49:48 -0600 From: "Brant Hollensbe" Subject: Re: KR> 4130 plate grain direction To: "KRnet" Message-ID: <000601c530c3$c856b9d0$0702a8c0@bruntson> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Hi Dene That's why the KRnet is so great. We all share the info we know and ask questions on the stuff we don't. All bends should be made perpendicular to the metal's grain. Otherwise the metal may crack during the bending process or at a later date as vibration or other stresses are applied to the part. Brant Hollensbe bhollensbe@mchsi.com DSM Ia. > Thanks, that confirms my suspisions. I want to bend the stuff to its > minimum radius so I thought it best to get the grain orientation right > to ensure the strongest part possible. > > The grain of metal is marked by the manufacture by the way they > > print > > their name on the sheet ------------------------------ Message: 14 Date: Thu, 24 Mar 2005 20:13:46 -0500 (Eastern Standard Time) From: "Dan Heath" Subject: Re: KR> pitot static placement To: "krnet@mylist.net" Message-ID: <424365CA.000001.00288@DANHOMECOMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" We have our static on both sides of the fuselage and the pitot is under the outboard wing attached to the forward spar, well out of the way of "passers by". See you in Mt. Vernon - 2005 - KR Gathering See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC -------Original Message------- best place to place pitot static is in the leading edge of your wing out of the prop wash area. problem is how do you keep people from walking into it ------------------------------ Message: 15 Date: Thu, 24 Mar 2005 20:47:46 -0600 From: larry flesner Subject: KR> Pitot/ Static Line Placement To: KRnet Message-ID: <3.0.6.32.20050324204746.00844dc0@pop.midwest.net> Content-Type: text/plain; charset="us-ascii" >Worse than having someone break off the under the wing pitot tube is to >have them catch a pant leg on it and fall onto the wing or other such >structure that might not survive the incident. Parley Byington ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The lead edge of my under wing pitot /static is located several inches back of the wing lead edge. You would almost have to crawl under the plane to do damage. To date, no one has even bent the unit, let alone break it. And as I stated earlier, it seems to be very accurate. Larry Flesner ------------------------------ Message: 16 Date: Thu, 24 Mar 2005 19:16:30 -0800 (PST) From: Ray Fuenzalida Subject: Re: KR> Pitot/ Static Line Placement To: KRnet Message-ID: <20050325031630.80842.qmail@web31515.mail.mud.yahoo.com> Content-Type: text/plain; charset=us-ascii Mine is also at the tip of the vertical stabilizer. Mine has never flown, so I can't sya what the end result will be, but I do like that fact that it is out of the way. Ray --- "P.Byington" wrote: > Netters: > > I have my pitot tube mounted at the top of the > verticle stabilizer and it > works just fine. This position induces > approximately a 5 mph error (high) > on the airspeed indicator as measured against my gps > but that is a small > price to pay for it being out of the way and not > having to worry about > someone breaking/bending it when they walk by. > > Worse than having someone break off the under the > wing pitot tube is to have > them catch a pant leg on it and fall onto the wing > or other such structure > that might not survive the incident. > > Just my two cents worth. > > Thanks > Parley Byington > parley@anv.net > Henderson Nv > N54PB flying since 1991 > > > ----- Original Message ----- > From: "larry flesner" > To: "KRnet" > Sent: Thursday, March 24, 2005 8:59 AM > Subject: KR> Pitot/ Static Line Placement > > > > At 10:03 AM 3/24/05 EST, you wrote: > > >Just curious if anyone has thought of putting the > Pitot tube at the top > of > > >the tail, and if that would be far enough out of > the way of the prop > wash? > > >Static ports on both sides of the fuseluge? > > >John Monday > > > +++++++++++++++++++++++++++++++++++++++++++++++++++++ > > > > That has been discussed in the past and may very > well work. > > However, the system outlined in the plans works > very well > > as proven by 130 flight hours on my KR. I'm > running a 60 inch > > prop on the 0-200 so I mounted mine on the inboard > end of > > the outer left wing. It appears accurate to > within 1 to 3 mph > > as measured by my GPS. My only problem is that I > have > > a very wide gear and the assembly is close to any > wheel > > pant I may install. I have it mounted by two #10 > screws to > > a hard point(wood) inside the wing so it's easily > removable. > > I used 5 minute "J.B.Weld" to mount the tubes > together and > > then to the mounting plate which conforms to the > wing shape. > > When I mount my outer wing I run the hoses into > the wing > > and out the mounting hole. I then simply "stuff" > the nylon hoses > > inside the tubes and insert the extra hose up into > the wing > > as I mount the assembly. Make sure to mark you > hoses for > > "S" and "P" !! > > > > Trying to reinvent the wheel and the many mod's I > made are > > two of the reasons it took me 13 years to complete > my bird !! > > As much as I enjoyed build, flying is definately a > lot more fun. > > > > As always, your results may vary........... > > > > Larry Flesner > > > > > > > > _______________________________________ > > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > > to UNsubscribe from KRnet, send a message to > KRnet-leave@mylist.net > > please see other KRnet info at > http://www.krnet.org/info.html > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to > KRnet-leave@mylist.net > please see other KRnet info at > http://www.krnet.org/info.html > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ------------------------------ Message: 17 Date: Thu, 24 Mar 2005 22:49:34 -0500 From: "Orma" Subject: KR> Tweety update To: "KRnet" Message-ID: <035901c530ed$a9517f00$0202a8c0@ROBBINS1> Content-Type: text/plain; charset="iso-8859-1" Hello Net This is a Tweety update. Tweety ran today with the dual pump for scavenge. The pressure came up as usual and the new pump puts out the same pressures the other single pump, cold was 60 and 45 after warm-up. At the conclusion of a twenty minute run at up to 2500 rpm, there was no signs of oil on the wing or in the exhaust pipe. The pump was dry and no leaks were noted. I how join the other believers in knowing that a turbo does require a scavenge pump. Orma Southfield, MI N110LR Tweety, old enough to drink this year Flying and more flying, to the gathering or bust http://www.kr-2.aviation-mechanics.com/ ------------------------------ Message: 18 Date: Thu, 24 Mar 2005 22:44:31 -0600 From: "Ronald Metcalf" Subject: RE: KR> Tweety update To: krnet@mylist.net Message-ID: Content-Type: text/plain; format=flowed I how join the other believers in knowing that a turbo does require a scavenge pump. Orma - can you please explain a bit about the location of this scavange pump in terms of the oil routing and how it is driven. I assume that this turbo also utilizaes engine oil under pressure to act as braings - how can you avoid having high pressure oil at the turbo? After all the dust has settled, do you think the extra work was worth the trouble? I am referring to the turbo, not the bigger engine. Ron M _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 347, Issue 123 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================