Lou and Connie’s PA22/20/22 project..

[tjlebaron]

I have been looking for this set up and will trade you a T-bar with sprockets if interested.

[cozzmo81]

My 1950 PA-20 is set up the same way as well

[mmoyle]

Anyone else see this type before.??

Brian


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Yup....looks just like mine. Serial # 20-174



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[pa20]

That is how my 1950 PA 20 is set up - my drawings confirm this is correct

Pretty sure that my PA-20 (S/N 567) has sprockets. If it gives a snappier roll, I might have to do that some day!

[wyandot jim]

Yep that is the way our 1952-20 S/N 843 is with the cables.

[Steve Pierce]

The early control column with the pulleys which are bigger around than the chain and sprockets which makes for quicker aileron responce.

[stevesaircraft(Bri)]

So, it has been determined that they found and installed an early column... Found the original sprocket one in their parts pile..



Dad cut out the fabric covering the Tri -gear area and cut off the formers that were welded in for the PA-20 gear... he is touching up the tubing with epoxy primer here...



At this point we are letting the primer dry good and then will pull the fabric tight and glue down with Stewart’s Systems glue... Will be figuring out a system to add panels to cover the tail wheel gear opening and welded on forward bracket after we do all the fabric work including adding the skylight..

Brian


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[stevesaircraft(Bri)]

Main modifications to the airframe are done...



Getting ready to cut out the skylight area...



It was actually very hard to take a razor blade to that nice new fabric...



Main area cut out...



This will be the long version... a little detail, when installing in a covered airplane, cut the fabric so you can wrap it over the wing root ribs but right at the rear of the opening cut it right on top of the rib.... makes it easier to tape over and blend in later...



Fold everything back and tape down..



Fit the 3/8 channel... note that I have the channel so that when looking straight down it is even with the front of the rear carry through tube... this will make the headliner panel fit nice and flat...



Also note, it is best to install the aileron pulley bolt with the nut on the top here... otherwise it is difficult to install with the skylight metal in the way...



Both channels fitted and ready to weld...



Cut a 35 inch long by 5.5 inch wide piece of mild steel and bent a 90 at 1.5 inches.... this will get fitted and trimmed for the main skylight glass attach screws and support...



A little bit of CAD (cardboard aided design) for fitting the angel...



Trim, test fit, trim again...



Close up of the root end trimming of the angle...



All trimmed and fit...



Also welded in my 3/8 channels...



Cleaned off the surface rust with the rotary scotch bright...



Marked and drilled for #8 nut plates...



Cleaned off the sharpie marks and painted the inside with copper-weld weld through primer...



Also pained the channels with Copper-weld



Clamped in place for welding...



A closer look...



Welded in place with the TIG...



Ground the welds down smooth....

This will all get a couple coats of epoxy primer brushed on and then the fabric will be pulled back in place and glued down with Stewart Systems....

Brian



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[Pacerfgoe]

Really neat to see how this is done....thanks for all the pics!

[Shermanj1]

Thank you!,Keep the Pics coming. Im hopping to do mine in January!