Duel Yokes.. Need your help.

[Trevor Hale]

Are your pulleys all the same size?
Are they all mounted the same at the same point with the same hardware and bearings?

Yup, All pulley's are the same size exactly. and Mounted in exactly the same spot on both Yokes.

[Trevor Hale]

The question is why do you get slippage in one direction and not the other? The rope could be the problem, but assuming all else is equal something is not balanced on one side. Finding it is where the fun is.

I wouldn't call it slippage, more like LAG. it is almost like direct drive from pilot to copilot but copilot to pilot seems to have a bit of a lag to it.

I am going to get some new rope and better connectors for my pulley's on my way home today. Here is hoping that I can make this work.

Then I gotta get the gas springs fired up.

[Trevor Hale]

Done Deal.


Thanks to everyone for all of your help. Success. Gwyn hit the nail on the head. By changing the Orange rope to the SS cable I have no more lag. Every little adjustment on the yoke mm's of a turn either way, causes the 2nd yoke to move the exact amount.

100% perfect. and it is all thanks to you guys.

Trev

[xtreme3d]

My setup looks almost like yours. I tried using rope and it did not work, one side will work better than the other or not at all. At the end went with wire and all my problems went away. Rope stretches, it will take out some of the force transmited between the yokes. Believe me I was about to pull all my hair as well .


Keep 'em flying and enjoy the ride!,


Pedro.

[Trevor Hale]

Thanks Pedro.

I had a different setup before and rope or wire didn't work. But I am happy to say that I am very happy with the setup now. and wouldn't change it for the world. One continuous wire instead of 3 separate wires was the largest difference.

[Westozy]

Done Deal.


Thanks to everyone for all of your help. Success. Gwyn hit the nail on the head. By changing the Orange rope to the SS cable I have no more lag. Every little adjustment on the yoke mm's of a turn either way, causes the 2nd yoke to move the exact amount.

100% perfect. and it is all thanks to you guys.

Trev

Good to hear Trev, BTW, those little elecrical connectors are great for terminating the ends of the wires on the turnbuckles too as long as the hole is big enough to take the SS wire through twice.

Gwyn

[Trevor Hale]

Good to hear Trev, BTW, those little elecrical connectors are great for terminating the ends of the wires on the turnbuckles too as long as the hole is big enough to take the SS wire through twice.

Gwyn

I never thought of that actually. I used crimps instead. but great thinking.

Thanks again Gwyn.. truly great advice.

[spitfire9]

Just a thought.

In the real Convair 580 yoke there is a bicycle chain on a gear that is mounted up by the yoke,, but halfway down the control column,, there are two ss wire ropes fastened to both ends of the bicycle chain.

This allows for no slippage from the gears to the chains when turning the yoke,, yet the ss wire rope is a lot easier to work with to go around the bottom pulleys and connect the Capt. and co-pilot wheels with the slack adjusting turn buckles.
This works without a hitch.

Here is a quick sketch of what I mean.
gear and chain.jpg

[Trevor Hale]

Thats one heck of an interesting concept.

Thanks for that

[jean-yves kotto]

Hi everyone, is there any one that can help me with control loading for my B737 NG sim ? Don't where to start