Stock tailwheel pushrod

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Re: Stock tailwheel pushrod

Postby WaiexN143NM » Mon Dec 19, 2016 12:47 am

Hi all,
We made our own push rod out of thick wall alum tube , threaded ends riveted in place. Then ball joints. Works well, allows for movement as the tail spring bends. One word of advise, the bigger the tail wheel the better.

WaiexN143NM
Michael
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Re: Stock tailwheel pushrod

Postby N111YX » Mon Dec 19, 2016 9:43 am

Don't know why but I like to track certain things and one of them is landings in the Kolb and Waiex. I just make a note of the cumulative total in my log book next to the "landing" column. It's interesting to see how many ladings I get out of tires.

Area 51% wrote:So.........Kip..........How exactly do you keep track of your landings? I was thinking........maybe......a pedometer? I couldn't use one of those for landings without converting the count into dog-years.
Kip

2010 Waiex 0082 (first flight May 2010)
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Based near Atlanta

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2000 Kolb Firestar II, Rotax 503, 575 hours
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Re: Stock tailwheel pushrod

Postby Fastcapy » Mon Dec 19, 2016 11:13 am

Geez, I track number of landings, number of go arounds, number of low approaches, what runways I used, what winds were on takeoff and landing, who my passenger was, how many rolls, loops, etc I did if doing acro, etc.

It is so easy with electronic logbooks and I can run a query and see all these cool stats.
Mike Beck
Oshkosh, WI (KOSH)
Sonex #1145 N920MB
Std Gear, Modified Aerovee, Rotec TBI, Dual Stick, Acro Ailerons
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Re: Stock tailwheel pushrod

Postby Bryan Cotton » Mon Dec 19, 2016 12:45 pm

tonyr wrote:Is your pushrod fitted the wrong way 'round?



Tony,
Now that you mention it, the other way is better but still bad.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Stock tailwheel pushrod

Postby DCASonex » Mon Dec 19, 2016 5:58 pm

Also made "S" bend tube for tail wheel link, but used 4130 steel with ball rod end bearings. One hint, although it requires a greater bend, place the rod end bearing on underside of both the rudder link and tail wheel control arm. When viewed from side, center of "S" link passes through approx. center of the tail spring and thus minimizes steering input from flexing of the spring. (photo available)

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Re: Stock tailwheel pushrod

Postby Bryan Cotton » Mon Dec 19, 2016 6:05 pm

Ready to tack weld one side.
Image
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
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dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
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Re: Stock tailwheel pushrod

Postby peter anson » Tue Dec 20, 2016 6:11 am

Here's my version, a length of 3/8" dia. 6061, drilled and tapped each end and bent to shape. The tail-spring bends a long way (try dropping the tail from about a foot some time and be amazed) so the rod-ends must be capable of large angles. These are studded 1/4" rod ends but standard rod ends may be used if the bolt through the rod end is modified for extra clearance. Sealed rod ends would be better if they existed, but this set-up has done over 180 hours and 300 landings so far.
Image
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Re: Stock tailwheel pushrod

Postby pfhoeycfi » Wed Jun 10, 2020 7:07 am

mike.smith wrote:I did the rod end bearings:
http://www.mykitlog.com/users/display_l ... 803&row=71

I later made a new pushrod that had and "S" bend in it so the rod end bearings were more parallel with the rudder horn and the tail wheel bracket. It works very well after 220 hours and 2.5 years.



Hi I was looking at your TW pics and I see that the rod end bearings are offset a small distance from the horns. Do you have a bushing of some sort between the horn and bearing? Is the bearing 3/16 or 1/4? I am looking at aurora bearings.

My b pushrod is not going to work, not even close.

peter
Peter Hoey
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Re: Stock tailwheel pushrod

Postby DCASonex » Wed Jun 10, 2020 8:24 am

If using rod end bearings and making an S bend push rod, placing the rod end for the tail wheel on the underside of the control arm puts the two rod ends in about same horizontal plane as ends of spring which minimizes unwanted steering action as the tail rod bends with load. Might be different with some tail wheels, just view from side to verify yours.

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