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sync 2 yokes togather? (Read 822 times)

Sep 23^rd, 2007 at 5:29am

machineman9 Offline
Colonel
Nantwich, England

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Posts: 5255

I just had a bizarre thought... has anyone actually tried syncing 2 yokes in a simpit?

what i mean is, you know in aircraft where there are 2 flight colums... when you move one, the other one moves with it in the same direction. has anyone tried this?

if i ever got around to building a good pit i would really like to do this but i dont know how hard it would be

cheers

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Reply #1 - Sep 23^rd, 2007 at 12:37pm

npbosch Offline
Colonel
I love YaBB 1G - SP1!

Posts: 27

Yes thats possible, but difficult to get i right. There are a lot of builders that did this.

I made 2 columns, they move together for pitch control. I tried several mechnisms to get them in sync for aileron control. I used 2 gears in the yoke connected to iron wire and pullies. But is was very difficult to sync the whole mechanism.

I gave up that (for now) and use 2 pots for left and right. That was very easy to install. A switch selects the pot that is active (left or right side).

Recently I saw a drawing about a linkage mechanism that should be easier to build than the way I went at first. Unfortunately I do not remember were. Will post it here wenn I find it.

Although the solution I have for now is quiet satisfying.

regards

Norbert

http://home.wanadoo.nl/norbert.bosch/

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Reply #2 - Sep 23^rd, 2007 at 12:44pm

machineman9 Offline
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Nantwich, England

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Posts: 5255

could you do it like (and would be more restricting/warranty voiding if its prebuilt and bought yoke) this: (i think you were getting at something similar, npbosch)

extend the rod from the yoke to outside its casing (with a space of like an inch before it smacks into the case when you pull up)
add a bar going to the other yoke, screwed in place but loose enough so that it doesnt get affected by rotation (push-pull and stay linked)
along the bar (in the extra inch or so) add a cog like on a bike, and add a chain... then put the cog in the same place on the other yoke (rotation stays linked)

what about that for a radical idea? would you guess it works? my other idea was building some sort of electrical contraption that got the value of the bar out, and the bars rotation and using something like an actuator, made the other yokes values be the same... but the problem with that is that if you turn them against each other then they could be fighting quite nastily and ruin the electrics

any additions? how is it done in a real plane?

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Reply #3 - Sep 25^th, 2007 at 4:09pm

npbosch Offline
Colonel
I love YaBB 1G - SP1!

Posts: 27

machineman,

I do not understand what you describe (english is not my mothers language, a lot of technical words).

I found the link with good info:

http://www.mycockpit.org/forums/showthread.php?t=10228

scroll to the posts of Gwyn and study his links. Thats in my opinion the best and easiest way to do it. I tried 3 other ways, this is the best.

In a real airliner there are gears in top of the yoke, they are under 90 degrees to the vertical rotating rod in the column
http://www.project777.com/?etxsid=478e0ebf86fa2f2f89b24f42fe7a6c80&pid=5315

Norbert

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