KIS-List Digest Archive

Fri 10/23/09


Total Messages Posted: 4



Today's Message Index:
----------------------
 
     1. 05:10 AM - Re: Tri-R KIS TR-1 Nose Leg ()
     2. 01:01 PM - Re: Website Update (Larry David)
     3. 02:52 PM - Re: Website Update (Robert Reed)
     4. 03:14 PM - Re: Website Update (Larry David)
 
 
 


Message 1


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    Time: 05:10:58 AM PST US
    From: <bakerocb@cox.net>
    Subject: Re: Tri-R KIS TR-1 Nose Leg
    10/23/2009 Hello Lyle, I really appreciate your taking the time to sort out my version of a better KIS TR-1 nose gear strut weldment. I hope that JJ and other builders may benefit also. You wrote: 1) "Is the threaded portion on the bottom of your nose gear weldment pinned to the shoe stub, or is it welded in place?" I have never detected any pins in that assembly. As far as I can tell the entire vertical shoe stub is either turned out of one solid piece or welded together and then welded to the end of the angled strut. 2) "If it's pinned, we'll be able to make you a longer threaded portion and pin it in place of your old one." I am coming towards the conclusion that the best (and most economical) solution for my concerns is to ship my present strut weldment to you for modification rather than attempt to have you build me an entire new one. In that case I would envision that you would cut off the existing vertical shoe stub, create a new one (probably by turning, but maybe by welding), and weld the new stub in place on the end of the angled strut. When the new stub is created the threaded portion would be about an inch longer than the existing threaded portion. This additional length would permit use of a standard thickness AN 310 castle nut, some flexibility in the steel and nylon washer stack up, and a cotter key hole placed a comfortable distance from the bottom end of the vertical shoe stub. Is the creation and installation of a new vertical shoe stub not feasible? 3) "To modify your existing weldment with a wider ring, we could add (welding from the top only) a ring (washer with a cutout) wide enough to place your favorite washers under it. The top or bottom of your shoe would then need to be milled to remove equal thickness of the washer that was added." Since the existing vertical shoe stub has the uncorrectable deficiences of a threaded portion being too short with an offset cotter key hole too close to the end a newly made vertical shoe stub is required. With the creation of the new vertical shoe stub the wider ring (washer with a cutout) could be welded in place on the new stub in the proper location. In fact the proper vertical location of that wider ring on the stub is very important. I have just spent the better part of two years creating a nose wheel pant (from Van's), and a nose strut fairing (from Glastar), for my plane. Please see the two attached pictures. Since the bottom surface of that ring, plus any washers, determines the vertical location of the top of the aluminum shoe and in turn the spacing between the front wheel pant opening and the strut fairing it is important that the wider ring be in a high enough vertical location on the stub to permit adjusting the vertical location of the top of the aluminum shoe with nylon and steel washers as needed. I don't think that milling of the top or bottom of the aluminum shoe is desired or needed (Recall that the new vertical stub threaded portion is going to be about an inch longer than the old stub.) Once again I appreciate your detailed involvement in solving my (and maybe other people's) problems with this strut. OC PS: I will send out a version of this email to the kisbuilders list without the pictures attached. If anyone wants to see the pictures of my fabulous new nose wheel pants just email me and I'll send you some copies direct attached to and email. ================================================ ----- Original Message ----- From: "Lyle Hendricks" <lyle@hendricksmfg.com> Cc: <kisbuilders@angus.mystery.com>; "'TRICKEL, RICH'" <richard_trickel@yahoo.com>; <helixaviation@btinternet.com> Sent: Thursday, October 22, 2009 1:58 PM Subject: RE: Tri-R KIS TR-1 Nose Leg O.C., You Wrote... b) The threaded portion at the bottom end of the short vertical unpainted stub welded on at the bottom of my strut weldment was not long enough. Is the threaded portion on the bottom of your nose gear weldment pinned to the shoe stub, or is it welded in place? If it's pinned, we'll be able to make you a longer threaded portion and pin it in place of your old one. You also wrote... f) Another modification that I would want Lyle to make if he made me a new strut weldment is related to the ring that is welded on at the top of the unpainted portion of the vertical stub. This ring performs two functions: A) It provides the bearing surface which stops any further upward movement of the aluminum shoe (or downward movement of the vertical stub if you prefer); and B) It has two horns projecting out that, in conjunction with a pin installed in the upper surface of the aluminum shoe, permits the aluminum shoe to swivel only so far when making a turn. Since this welded on ring performs the important function of a bearing surface between the bottom face of the ring and the upper face of the aluminum shoe it should be large enough in outer diameter so that one can use washers as desired (I prefer nylon) to provide the appropriate friction interface between those two surfaces. At present that ring is not large enough in outer diameter and appears to exist primarily to provide the two turn stoppage horns. I would have that ring made larger in outer diameter and cut out a sector from the circumference that would permit swiveling of the aluminum shoe and provide stoppage by means of the pin installed in the top of the aluminum shoe. To modify your existing weldment with a wider ring, we could add (welding from the top only) a ring (washer with a cutout) wide enough to place your favorite washers under it. The top or bottom of your shoe would then need to be milled to remove equal thickness of the washer that was added. In addition, you wrote... I guess my big issue in removing my present strut and shipping it off to you for either modification / upgrading or to serve as a pattern for a completely new strut weldment is the fact that my airplane would be grounded for an indeterminate period of time. I really don't have a need for the airplane to go any place, but for some reason I tend to get anxious if I don't have a flyable airplane available. In over 50 years of flying I have always suffered from this addiction. I am sure that we could overcome this issue with some communication and coordination. Most pilots , myself included, suffer this same addiction. I can assure you I'll do my best to get you back in the air as soon as safely possible. Some of the variables determining the lead time required are... 1) Time in transit. 2) Amount of work in our shop at that time. 3) Time in transit to and from the heat treating facility. 4) Heat treating facility may also have a backlog. 5) After a weldment has been heat treated, metal tends to move or "spring" as it's stress relieved. A determination must be made if it's within usable limits or if it has to be straightened with or without use of heat and if additional stress relieving is required. It's usually a 6 week plus or minus turnaround time for the entire process. During the time when my plane was getting a new engine, I was fortunate enough to have friends with planes similar to mine. For the cost of an airport burger or two, I was able to satisfy my hunger for flight. I will keep you in the loop of nose gear building and let you know if anyone else wishes to modify or upgrade their old nose wheel assembly. If we get a handful of builders interested, you can share the cost saving. If you have any more concerns or questions, please do not hesitate to call 208-476-7740 (8-5 Pacific time) Lyle Hendricks Hendricks Mfg., Inc. www.HendricksMfg.com 208-476-7740 ============================================== -----Original Message----- From: bakerocb@cox.net [mailto:bakerocb@cox.net] Sent: Wednesday, October 21, 2009 11:52 PM Cc: kisbuilders@angus.mystery.com; 'TRICKEL, RICH'; helixaviation@btinternet.com Subject: Re: Tri-R KIS TR-1 Nose Leg 10/22/2009 Hello Lyle, Thanks for your quick response to my email. You wrote: 1) "I built a nose gear weldment for you in 2001." That is correct. I had a coil spring version of the KIS TR-1 nose gear strut weldment with the angled streamline tubing that I had obtained from Tri-R Technologies. I had had the streamline tubing reenforced locally, but some failures of that streamline tubing by other builders, even with reenforcement, destroyed my confidence in that configuration. So I built a shipping box for the strut weldment (I still have the box) and sent it off to you in Valencia CA in November 2001. You made up two strut weldments with round angled tubing and had them heat treated by Quality Heat Treating Inc on 11/14/2001. Your customer PO Number was 111301. I have a copy of the heat treating certificate number 270014. I don't know who the other strut was for. You shipped my strut back to me on 11/20/2001. Also I don't know if the short vertical stub at the bottom of the round angled tubing was made new by you in November 2001 and welded onto the round angled tubing or if the short vertical stub at the bottom of the abandoned streamlined angled tubing was cut off and then used to complete the weldment. It is in this vertical stub area that the deficiencies exist. 2) "Are you wanting another , or is this for a different aircraft?" and "Please clarify." I am wanting another -- or a modified / upgraded rebuild of the one that I have. The strut weldment that you made up for me was installed on my airplane pror to first flight (which was in November 2003) and now the plane has over 250 hours on it. The strut weldment has performed well, but as I described in my email, I don't have complete confidence in it so have considered having it replaced or modified / upgraded. I guess my big issue in removing my present strut and shipping it off to you for either modification / upgrading or to serve as a pattern for a completely new strut weldment is the fact that my airplane would be grounded for an indeterminate period of time. I really don't have a need for the airplane to go any place, but for some reason I tend to get anxious if I don't have a flyable airplane available. In over 50 years of flying I have always suffered from this addiction. I am sure that we could overcome this issue with some communication and coordination. 3) "P.S. The springs should be obtainable through Mc Master Carr." I won't be needing a coil spring, the one that I have is fine. But JJ would need one if he decides to go ahead with the purchase of a new strut from you. Do you know the McMaster Carr part number for this specific coil spring? I'd appreciate being kept in the loop on this subject and when the opportunity arises I'll probably jump in and ship my strut weldment off to you for either replacement or modification / upgrade as appropriate. Did any of my requirements seem out of line or undoable? OC PS: I would strongly encourage any KIS TR-1 builders that have any nose gear strut concerns at all to look real hard at upgrading to this version of the strut. If any one would like a picture of this version of the strut just email me direct or post to the group and I will email you direct a picture. ================================================ ----- Original Message ----- From: "Lyle Hendricks" <lyle@hendricksmfg.com> Cc: "'TRICKEL, RICH'" <richard_trickel@yahoo.com> Sent: Wednesday, October 21, 2009 9:38 PM Subject: RE: Tri-R KIS TR-1 Nose Leg O.C., I built a nose gear weldment for you in 2001. Are you wanting another , or is this for a different aircraft? You sent us your existing weldment so we could insure a matched fit would be manufactured, as several very similar variations of that nose gear weldment now exist. Please clarify. The price quoted to JJ was for a one off. If more builders are interested in the new style of nose gear, the price would be adjusted accordingly. Lyle Hendricks Hendricks Mfg., Inc. 208-476-7740 P.S. The springs should be obtainable through Mc Master Carr. ===================================================== -----Original Message----- From: bakerocb@cox.net [mailto:bakerocb@cox.net] Sent: Wednesday, October 21, 2009 3:23 PM Cc: TRICKEL, RICH; HENDRICKS, LYLE Subject: Re: Tri-R KIS TR-1 Nose Leg 10/21/2009 Hello JJ, Thank you for your email copied below on this subject -- it was greatly appreciated. I think that the strut assembly shown in the attached picture is by far the best nose gear strut for the KIS TR-1, but I do have some comments. Lyle wrote: 1) "We can manufacture a new nose gear assembly for you as shown in your picture less the spring/ strut." I am not exactly sure what Lyle is referring to when he uses the term "spring / strut". The coil spring itself came from a less expensive / small Japanese made automobile. Rich Trickel should be able to identify that part and one should be able to retrieve one from an automobile salvage yard (formerly known as a junk yard). If Lyle can make everything, but the coil spring, and the spring can be obtained separately then it should be possible to assemble an entire unit. 2) "new nose gear weldment $844.37" This is the part that I am interested in obtaining. It is the large weldment painted white in the upper portion of the attached picture. It is made of some high quality steel and requires heat treatment. Previously Lyle was reluctant to make one of these for me unless I sent him my present one. Maybe because I wanted some modifications and corrections made and he wanted my existing strut in hand in order to see exactly what I was talking about. Let me describe those modification and corrections: a) The short vertical stub welded on at the bottom of my strut angled portion was not perfectly vertical or in alignment with the vertical cylinder at the top of the weldment. It wasn't off by much, but it could be detected by the naked eye. The result was that my aluminum shoe swiveling axis was not perfectly vertical and the nose wheel axle was not perfectly horizontal and the nose wheel and tire leaned a bit in one direction. b) The threaded portion at the bottom end of the short vertical unpainted stub welded on at the bottom of my strut weldment was not long enough. Even with minimum washers ( I use a combination of flat steel and nylon washers in the stack) one had to use the very thin version of the castle nut (AN 320) in order to get the nut on far enough to put a cotter key through the slots in the nut. c) And also the cotter key hole through the vertical stub was so close to the end of the stub that there was no confidence in the surrounding material's structural integrity. d) And to make matters worse the cotter key hole through the vertical stub was not exactly through the middle of the stub and it was necessary to file two of the opposite slots in the castle nut very wide in order to put the cotter key through both the castle nut and the hole in the vertical stub. Unfortunately this meant that one's ability to adjust the compression on the stack was available only in 180 degree increments of nut rotation -- not a good situation. e) The solution to the problems cited in a through d above can be solved by: ensuring the alignment of the vertical stub is correct; making a longer threaded portion of the vertical stub so that a standard thickness castle nut (AN 310) may be used; drilling the cotter key hole further from the bottom end of the vertical stub; and ensuring that the cotter key hole is drilled exactly through the middle of the vertical stub. f) Another modification that I would want Lyle to make if he made me a new strut weldment is related to the ring that is welded on at the top of the unpainted portion of the vertical stub. This ring performs two functions: A) It provides the bearing surface which stops any further upward movement of the aluminum shoe (or downward movement of the vertical stub if you prefer); and B) It has two horns projecting out that, in conjunction with a pin installed in the upper surface of the aluminum shoe, permits the aluminum shoe to swivel only so far when making a turn. Since this welded on ring performs the important function of a bearing surface between the bottom face of the ring and the upper face of the aluminum shoe it should be large enough in outer diameter so that one can use washers as desired (I prefer nylon) to provide the appropriate friction interface between those two surfaces. At present that ring is not large enough in outer diameter and appears to exist primarily to provide the two turn stoppage horns. I would have that ring made larger in outer diameter and cut out a sector from the circumference that would permit swiveling of the aluminum shoe and provide stoppage by means of the pin installed in the top of the aluminum shoe. Maybe we can persuade Lyle to go into production and there may be a few other builders out there that could use a new strut. Please let me know if you have any questions or comments on this subject. Thanks. OC PS: I'll send out a version of this email without the attachment to the kisbuilders group to see what comes up. ======================================================


    Message 2


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    Time: 01:01:48 PM PST US
    From: "Larry David" <lgdavid@roadrunner.com>
    Subject: Re: Website Update
    Hi Bob, Actually I think the nose gear components picture was mine. It wa s strong and did not break when I used it as a brake by plowing an eight fo ot long furrow in the celery field when my engine went into limp home mode back in Dec 2006 and I had to do an off field landing. Incidentally, would you like some crash pictures showing the KIS is strong enough to ensure the pilot survives a 60 mph off field landing? Larry ----- Original Message ----- From: Robert Reed To: kis-list@matronics.com Sent: Thursday, October 22, 2009 9:03 PM Subject: KIS-List: Website Update All, Just uploaded several updates to my website. I added a photo of OC Baker's TR-1 Nose Gear Componets that have been dis cussed in a recent thread. I also added an update on MY PROGRESS to show that I haven't been sleepin g all summer. I must admit that I never anticipated taking as much time to build the Pressure Cowling as it is taking but I think it is coming along well and should be finished in a couple of weeks. www.kisbuild.onfinal18.com Have a great day, Bob Reed


    Message 3


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    Time: 02:52:12 PM PST US
    From: Robert Reed <robertr237@att.net>
    Subject: Re: Website Update
    Absolutely!- And thanks no matter where the photo originated, it is a goo d example.- I will include it with your other shots.=0A=0ABob=0A=0A=0A=0A =0A________________________________=0AFrom: Larry David <lgdavid@roadrunner .com>=0ATo: kis-list@matronics.com=0ASent: Friday, October 23, 2009 2:56:21 PM=0ASubject: Re: KIS-List: Website Update=0A=0A=0AHi Bob,- Actually I t hink the nose gear components picture was mine.- It was strong and did no t break when I used it as a brake by-plowing an eight foot long-furrow in the celery field when my engine went into limp home mode back in Dec 200 6 and I had to do an off field landing.- =0AIncidentally, would you like some crash pictures showing the KIS is strong enough to ensure the pilot su rvives a 60 mph off field landing?- Larry=0A----- Original Message ----- =0A>From: Robert Reed =0A>To: kis-list@matronics.com =0A>Sent: Thursday, Oc tober 22, 2009 9:03 PM=0A>Subject: KIS-List: Website Update=0A>=0A>=0A>All, =0A>-=0A>Just uploaded several updates to my website.- =0A>-=0A>I add ed a photo of OC Baker's TR-1 Nose Gear Componets that have been discussed in a recent thread.=0A>-=0A>I also added an update on MY PROGRESS to show that I haven't been sleeping all summer.- I must admit that I never anti cipated taking as much time to build the Pressure Cowling as it is taking b ut I think it is coming along well and should be finished in a couple of we eks.=0A>-=0A>www.kisbuild.onfinal18.com=0A>-=0A>Have a great day,=0A> -=0A>Bob Reed=0A>-=0A>=0A>=0A>://www.matronics..com/Navigator?KIS-List =======


    Message 4


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    Time: 03:14:10 PM PST US
    From: "Larry David" <lgdavid@roadrunner.com>
    Subject: Re: Website Update
    Not a problem for me. OC's working the problem and it logically belongs wi th his stuff. I just didn't want people complaining to him if they didn't like the picture since it was not his fault if it is wrong. :-) Larry ----- Original Message ----- From: Robert Reed To: kis-list@matronics.com Sent: Friday, October 23, 2009 2:48 PM Subject: Re: KIS-List: Website Update Absolutely! And thanks no matter where the photo originated, it is a goo d example. I will include it with your other shots. Bob --------------------------------------------------------------------------- --- From: Larry David <lgdavid@roadrunner.com> To: kis-list@matronics.com Sent: Friday, October 23, 2009 2:56:21 PM Subject: Re: KIS-List: Website Update Hi Bob, Actually I think the nose gear components picture was mine. It was strong and did not break when I used it as a brake by plowing an eight foot long furrow in the celery field when my engine went into limp home mod e back in Dec 2006 and I had to do an off field landing. Incidentally, would you like some crash pictures showing the KIS is stron g enough to ensure the pilot survives a 60 mph off field landing? Larry ----- Original Message ----- From: Robert Reed To: kis-list@matronics.com Sent: Thursday, October 22, 2009 9:03 PM Subject: KIS-List: Website Update All, Just uploaded several updates to my website. I added a photo of OC Baker's TR-1 Nose Gear Componets that have been d iscussed in a recent thread. I also added an update on MY PROGRESS to show that I haven't been sleep ing all summer. I must admit that I never anticipated taking as much time to build the Pressure Cowling as it is taking but I think it is coming alon g well and should be finished in a couple of weeks. www.kisbuild.onfinal18.com Have a great day, Bob Reed ://www.matronics..com/Navigator?KIS-List ics.com .matronics.com/contribution =================




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