---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Wed 11/13/13: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 12:10 AM - Please Make A List Contribution Today; Some Nice Comments... (Matt Dralle) 1. 05:34 AM - Re: More info on tailwheel 4130 tube needed... (Dennis Rowe) 2. 06:02 AM - Re: More info on tailwheel 4130 tube needed... (John Hauck) 3. 06:08 AM - Re: More info on tailwheel 4130 tube needed... (Larlaeb) 4. 07:18 AM - Landing gear update (Lee) 5. 07:29 AM - Re: Xtra Steering Problems (Rick Neilsen) 6. 08:16 AM - Re: Xtra Steering Problems (james.vanlaak@gmail.com) ________________________________ Message 0 _____________________________________ Time: 12:10:24 AM PST US From: Matt Dralle Subject: Kolb-List: Please Make A List Contribution Today; Some Nice Comments... Dear Listers, I've been getting some very nice comments from Listers along with their List Support Contributions. I've shared a number of them below. Please read them over and see what your fellow Listers think of the Lists and Forums. Please make a Contribution today to support the continued upgrade and operation of these services. There are lots of really nice gifts available this year, so please browse the selections and pickup something fun with your qualifying Contribution! You may use a credit card or your PayPal account here: http://www.matronics.com/contribution Or feel free to send a personal check to: Matronics / Matt Dralle 581 Jeannie Way Livermore CA 94550 Thank you in advance for your generous support! It is very much appreciated! Best regards, Matt Dralle Matronics Email List Administrator -------------------- What Listers Are Saying About The Lists -------------------- I wondered off for a few years & am coming back. I firmly believe you provide greater value to us than some magazine subscriptions. William F Thanks for helping me connect to people have truly blazed the trail. Terry M Thank you for the time and effort you put into keeping these lists going. I am on the verge of flying my RV 8 and would not be here without the help of Matronics. Michael W Thank you for providing a valuable service. Vaughn T Matt I like your forums. Jerry D Thank you for another year of service. Oscar Z Been a "member" for years - this has been a fantastic resource and a great gift to the aviation community. Reade G Thanks for the many years of support to RV builders. Roy H Best run list on the net. Roger C Thanks for your excellent forum! Fred D Truly respect your work and service to many readers!! Fergus K Thanks for an ad-free list! William A Thank you for your GREAT service. I read it every day. John B ..great service! Ralph C Thanks so much for being there. Your contribution to aviation knowledge is invaluable. Benjamin B Thank you for providing the list service. It's great! William V I'd never have finished my Glasair without them. Ronald C Thank you Matt for the valuable forum, am pleased to contribute! Jeffrey J Fine service. Byron G Thanks for your support of our community! Kenneth B -------------------- What Listers Are Saying About The Lists -------------------- ________________________________ Message 1 _____________________________________ Time: 05:34:58 AM PST US Subject: Re: Kolb-List: More info on tailwheel 4130 tube needed... From: Dennis Rowe That is a surprisingly thick wall for that little 3/4 inch rod! =F0=9F=98=B3 Dennis "Skid" Rowe Mk3, 690L-70, Leechburg, PA > On Nov 12, 2013, at 8:32 PM, "John Hauck" wrote: > > > A little while back a couple folks talked about replacing the Aluminum tai l wheel tube with a piece of 4130 steel. I talked to my local shop and they w ant to know what wall thickness is being used and they are unsure about the H ardness available, but would see what they could get > > Any additional information would be much appreciated ! > > Thanks, > > Nick > > > > Nick: > > .120 wall thickness. Heat treat to 48RC. Heat treating should be done af ter all welding, drilling, etc. > > The length of the tail wheel strut can be reduced by about a half of whate ver the plans call for. > > Don't know why Homer liked the tail wheel strut so long. > > john h > mkIII > Titus, Alabama > > 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D ________________________________ Message 2 _____________________________________ Time: 06:02:03 AM PST US From: "John Hauck" Subject: RE: Kolb-List: More info on tailwheel 4130 tube needed... That is a surprisingly thick wall for that little 3/4 inch rod! =F0=9F=98=B3 Dennis "Skid" Rowe Mk3, 690L-70, Leechburg, PA Dennis: That's what it takes to get the job done on my MKIII. I also have a plate welded to the end on my tail wheel strut to mimic a flat tail spring to attach a Maule tail wheel. Works well. john h mkIII Titus, Alabama ________________________________ Message 3 _____________________________________ Time: 06:08:48 AM PST US Subject: Kolb-List: Re: More info on tailwheel 4130 tube needed... From: "Larlaeb" Possibly overkill from a strength perspective but there is a lot of twisting force on that rod/tube when you start shoving the tail around and the bolt that holds it in tends to wallow out the hole so my take would be that the thicker stuff helps prevent that a bit. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=412987#412987 ________________________________ Message 4 _____________________________________ Time: 07:18:05 AM PST US From: "Lee" Subject: Kolb-List: Landing gear update Hi everyone, I wanted to give an update of how the steel landing gear has been working on my MKII Twinstar. I put the hardened steel gear on this spring after several tries of using the aluminum gear. (The camber and toe in/out with aluminum gear would be all over the place depending on if I had a passenger or not which would send me all over the runway when landing.) I have about 45 hours on the steel gear and it has been great ! with or without a passenger, it goes down the runway straight. (much better on a tar runway also) My runway is bumpy, uneven and a couple of spots that want to send me back into the air if I hit them fast enough. The gear has enough spring in it to handle it well. (I know it should be smoothed out, but I don't own the land and the farmer does not want me to do anything to it, I am not going to ruffle any feathers.) I had to make new wheel attachment brackets to fit the straight steel legs so I installed a set of hydraulic mountain bike brakes at the same time. I am surprised at how good these little brakes hold, I can run it up to nose over and the brakes still hold. I don't think the pads will last long but they are only about $8. a set. I also set it up with two brake handles on the stick, works really well for turning. I have included a few pictures of the setup. don't look to close to the gear paint, it was a quick spray on some paint so it doesn't rust deal. Also want to thank everyone for helping me out with the steel leg conversion. Lee, MKII twinstar, CGS hawk classic, Goldwing, Vector Lee.. ________________________________ Message 5 _____________________________________ Time: 07:29:57 AM PST US Subject: Re: Kolb-List: Xtra Steering Problems From: Rick Neilsen Gary/All Yes the bellcrank is hardened. I found a drill bit for hardened steel at Production Tool that drilled it with no problems. Rick Neilsen Redrive VW Powered MKIIIC On Tue, Nov 12, 2013 at 7:06 PM, Gary Aman wrote: > You might have some difficulty drilling that part because it has been > hardened to reduce wear at the keyway.ate up some good drill bits > > Sent from my iPhone > > On Nov 12, 2013, at 9:30 AM, Rick Neilsen wrote: > > Brad > > I'm not sure I understand what you are saying. If you were having problem s > getting the tail wheel to unlock then I have a better suggestion. The > problem is that the tail wheel doesn't turn enough to unlock. This can be > fixed by drilling the tail wheel bellcrank to allow the control chains to > be attached closer together to effectively increase the turning ratio > between the rudder and the tail wheel. The optional tail wheel has a much > longer bellcrank than the stock tail wheel. > > The advantage of the compression springs is that they keep the tail wheel > from a unexpected unlock in cross winds. The above suggestion on modifyin g > the tail wheel bellcrank allows you to turn by unlocking the tail wheel > without having to slam the tail wheel sideways enough to overcome spring > tension for a tail wheel unlock. This also reduces the ground handling > sideloading on the tail feathers which has been a problem on older Kolbs. > > I did this fix on my MKIIIC years ago and it has worked well. > > Rick Neilsen > Redrive VW Powered MKIIIC > > > On Mon, Nov 11, 2013 at 10:58 PM, Brad Nation wrot e: > >> >> Thanks for all the suggestions and help. I think I figured out the issu e >> with my tail wheel not unlocking as it should. Upon further investigati on >> I realized that the issue was that the spring chain assembly that connec ts >> the connection bar to the ruder wasn=92t allowing the wheel to turn enou gh so >> that the spring pin could retract. The compression springs were from >> Aircraft Spruce and were too stiff. I replaced them with heavy duty doo r >> springs purchased at the local hardware store.(Thanks Dennis Kerby for t he >> suggestion.) Unfortunately I was unable to do a taxi test due to wind. B ut >> I think it will do the trick. >> >> Thanks again, >> >> YellowBird 1 >> Kolb MK III Xtra >> >> PS: I changed my userid to my Dad=92s call sign when he was flying B-57s in >> Vietnam. >> >> ========== >> ="_blank">www.aeroelectric.com >> ooks.com" target="_blank">www.buildersbooks.com >> et="_blank">www.homebuilthelp.com >> et="_blank">www.mypilotstore.com >> "_blank">www.mrrace.com >> ="_blank">http://www.matronics.com/contribution >> le, List Admin. >> ========== >> arget="_blank">http://www.matronics.com/Navigator?Kolb-List >> ========== >> http://forums.matronics.com >> ========== >> >> >> >> > * > > D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D > ot;">www.aeroelectric.com > books.com "">www.buildersbooks.com > quot;">www.homebuilthelp.com > quot;">www.mypilotstore.com > ">www.mrrace.com > ot;">http://www.matronics.com/contribution > D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D > List"">http://www.matronics.com/Navigator?Kolb-List > D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D > //forums.matronics.com > D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D > * > > * > =========== m> ldersbooks.com> .com> com> om/contribution> =========== onics.com/Navigator?Kolb-List> =========== =========== > * > > ________________________________ Message 6 _____________________________________ Time: 08:16:13 AM PST US Subject: Re: Kolb-List: Xtra Steering Problems From: james.vanlaak@gmail.com I made an extension for the steering arm on the bottom of the rudder. That let me drill several holes to vary the ratio till I found what I wanted. Much easier to do and to adjust as you like. On Wed, Nov 13, 2013 at 10:29 AM, Rick Neilsen wrote: > Gary/All > > Yes the bellcrank is hardened. I found a drill bit for hardened steel at > Production Tool that drilled it with no problems. > > Rick Neilsen > Redrive VW Powered MKIIIC > > > On Tue, Nov 12, 2013 at 7:06 PM, Gary Aman wrote: > >> You might have some difficulty drilling that part because it has been >> hardened to reduce wear at the keyway.ate up some good drill bits >> >> Sent from my iPhone >> >> On Nov 12, 2013, at 9:30 AM, Rick Neilsen wrote: >> >> Brad >> >> I'm not sure I understand what you are saying. If you were having >> problems getting the tail wheel to unlock then I have a better suggestio n. >> The problem is that the tail wheel doesn't turn enough to unlock. This c an >> be fixed by drilling the tail wheel bellcrank to allow the control chain s >> to be attached closer together to effectively increase the turning ratio >> between the rudder and the tail wheel. The optional tail wheel has a muc h >> longer bellcrank than the stock tail wheel. >> >> The advantage of the compression springs is that they keep the tail whee l >> from a unexpected unlock in cross winds. The above suggestion on modifyi ng >> the tail wheel bellcrank allows you to turn by unlocking the tail wheel >> without having to slam the tail wheel sideways enough to overcome spring >> tension for a tail wheel unlock. This also reduces the ground handling >> sideloading on the tail feathers which has been a problem on older Kolbs .. >> >> I did this fix on my MKIIIC years ago and it has worked well. >> >> Rick Neilsen >> Redrive VW Powered MKIIIC >> >> >> On Mon, Nov 11, 2013 at 10:58 PM, Brad Nation wro te: >> >>> >>> Thanks for all the suggestions and help. I think I figured out the >>> issue with my tail wheel not unlocking as it should. Upon further >>> investigation I realized that the issue was that the spring chain assem bly >>> that connects the connection bar to the ruder wasn=92t allowing the whe el to >>> turn enough so that the spring pin could retract. The compression sprin gs >>> were from Aircraft Spruce and were too stiff. I replaced them with hea vy >>> duty door springs purchased at the local hardware store.(Thanks Dennis >>> Kerby for the suggestion.) Unfortunately I was unable to do a taxi test due >>> to wind. But I think it will do the trick. >>> >>> Thanks again, >>> >>> YellowBird 1 >>> Kolb MK III Xtra >>> >>> PS: I changed my userid to my Dad=92s call sign when he was flying B-57 s >>> in Vietnam. >>> >>> ========== >>> ="_blank">www.aeroelectric.com >>> ooks.com" target="_blank">www.buildersbooks.com >>> et="_blank">www.homebuilthelp.com >>> et="_blank">www.mypilotstore.com >>> "_blank">www.mrrace.com >>> ="_blank">http://www.matronics.com/contribution >>> le, List Admin. >>> ========== >>> arget="_blank">http://www.matronics.com/Navigator?Kolb-List >>> ========== >>> http://forums.matronics.com >>> ========== >>> >>> >>> >>> >> * >> >> D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D >> ot;">www.aeroelectric.com >> books.com "">www.buildersbooks.com >> quot;">www.homebuilthelp.com >> quot;">www.mypilotstore.com >> ">www.mrrace.com >> ot;">http://www.matronics.com/contribution >> D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D >> List"">http://www.matronics.com/Navigator?Kolb-List >> D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D >> //forums.matronics.com >> D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D >> * >> >> * >> >> _blank">www.aeroelectric.com >> .com" target="_blank">www.buildersbooks.com >> ="_blank">www.homebuilthelp.com >> ="_blank">www.mypilotstore.com >> ank">www.mrrace.com >> _blank">http://www.matronics.com/contribution >> get="_blank">http://www.matronics.com/Navigator?Kolb-List >> tp://forums.matronics.com >> * >> >> > * > =========== m> ldersbooks.com> .com> com> om/contribution> =========== onics.com/Navigator?Kolb-List> =========== =========== > * > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.