Difference between revisions of "Side Sticks"

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(Added heading for John Tvedte's custom-engineered side sticks, with a link to his wiki page)
 
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Here are some aircraft known to have side-stick controls mounted.<br/>
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Here are some aircraft known to have side-stick controls mounted.  Below is Doug Kanczuzewski's (N77LY) aileron cable setup for his sticks, as well as the one that Reiff Lorenz is working on with factory assistance.<br/>
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[[Kanczuzewski N77LY]]<br/>
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[[Image:n77ly_sidestick.jpg|right|thumb|500px|N77LY Side Sticks]]Here is some information from John on his system.
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[[Kanczuzewski N77LY]]&nbsp;&nbsp;&nbsp;&nbsp;[[Factory_N74GP]]&nbsp;&nbsp;&nbsp;&nbsp;[[Tvedte N812JT]] <br/>
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"The main units weight 2lbs 1 oz. so that would be x 2 as we have a left and right side.  Then there are the bearing supports, bearings and transition tube to allow connection to the elevator tube. I can weigh those sometime to give you an idea. One also removes all of the orig. center stick control system, and in our case, we plan on cutting the keel down (and reinforcing it) - so we will have a smaller net gain.
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Here is the factory's new side-stick option, with brochure.<br/>
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The range of motion is greater than what is required or comfortable for that matter (aileron range is more than we need - we knew that when we designed the mounting brackets - but wanted extra clearance). The elevator range is designed to produce a less touchy control - with a 3.5" fore/aft range of movement.  Because of the inner tube slot - the sensitivity of the control is reduced over the center most range of the control - the slot was used with bearings as the bell crank moves in an arch. The bearings installed for the aileron (rotary) motion are the final bearings and are very smooth in operation.  The linear bearings we are using currently, are not the final bearings (we have the final bearings). We are currently just using some pieces of machined steel - they will be replaced with aluminum backed frelon ( which is a reinforced teflon material) - similar to Rulon J - specifically used with Stainless Steel. The inner tube will be replaced with a thin walled SS tube. We have tested this solution in a mock up - and it is very smooth, and does not require any lubrication.  The SS is left with approx a 300 grit surface, which then fills with the teflon material when used, at that point one basically has teflon running on teflon. The slot bearings are final bearings, and we allowed approx. .005" tolerance - so the top and bottom bearing can move in different directions, as each bearing will only touch one side of the slot at a time.
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[[Media:Sidestick brochure - small size.pdf]]<br/>
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We did find out we have a couple of the mounting bracket holes slightly too tight of tolerance - which puts a small side loading on the bearings - we will ream the holes to correct for that issue.
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[[Image:N74gp_sticks.jpg|300px|N74GP]]
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We will likely make different bearing/bellcranks for the ailerons in the engine area - which will allow us to compensate the system to get proper left/right range and keep the ratios similar to the existing factory center stick.  
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[[Image:N74gp_sticks2.jpg|300px|N74GP]]<br/>
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== John Tvedte's custom-engineered side sticks ==
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[[Image:PA162754.jpg|300px|N812JT]],<br/><br/>
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[http://wiki.velocityoba.com/index.php?title=Tvedte_N812JT More Photos]
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== Doug Kanczuzewski Installation ==
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Here are some pictures of my side stick set up. I run the long cables from the connection at the center up by the canard to the aileron bell crank, one cable each side. The worst turn is the bend from the canard down the side of the center tunnel  to the floor, it is a 90 degree turn, but I have kept it to a large radius.<br/><br/>
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[[Image:N77ly_sidestick.jpg|300px|N77LY Side Sticks]]
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The aileron cables, left and right,  are attached above the canard.<br/>
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[[Image:P1030037.jpg|600px]]<br/><br/>
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This is the connection at the end of the control stick that works the canard.
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Tough to get a lot of photos as most of it is buried.<br/>
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[[Image:P1030045.jpg|600px]]<br/><br/>
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Here is a photo of the cable run up the co-pilot side.<br/>
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[[Image:P1030034.jpg|600px]]<br/><br/>
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<gallery>
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Image:N77ly_sidestick.jpg|N77LY
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Image:P1030037.jpg|N77LY
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Image:P1030045.jpg|N77LY
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Image:P1030034.jpg|N77LY
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Image:Brochure.jpg|N74GP
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Image:N74gp_sticks.jpg|N74GP
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Image:N74gp_sticks2.jpg|N74GP
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Image:PA162754.jpg|N812JT
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Image:PA162756.jpg|N812JT
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</gallery>
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== Reiff Lorenz Installation ==
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I  posted a few months ago  about running push-pull cables all the way from  the dual side sticks to  the aileron bell cranks at the wing root. Here is the final installation. It took a few tries to get the angles right so that there was not any stiffness or binding where they attach to the  side sticks.   
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The cables run through the carbon beams, diagonally  up the sides of the  fuselage (I don't have any strake cutouts), and  exit the firewall just above the spar.
 
   
 
   
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John"
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I'm  still really  early in my build, and it will be a while before I install  the avionics  or engine, so I can't be sure yet about any interference  or other  unintended consequences. Since a few people asked, though, I'm  posting  the photos now that it's (hopefully!) done.
  
 
<gallery>
 
<gallery>
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Image:n77ly_sidestick.jpg|N77LY Side Sticks
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Image:Reiff_sidestick1.jpg
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Image:Reiff_sidestick2.jpg
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Image:Reiff_sidestick3.jpg
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Image:Reiff_sidestick4.jpg
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Image:Reiff_sidestick5.jpg
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Image:Reiff_sidestick6.jpg
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Image:Reiff_sidestick7.jpg
 
</gallery>
 
</gallery>

Latest revision as of 13:35, 7 March 2016

Here are some aircraft known to have side-stick controls mounted. Below is Doug Kanczuzewski's (N77LY) aileron cable setup for his sticks, as well as the one that Reiff Lorenz is working on with factory assistance.

Kanczuzewski N77LY    Factory_N74GP    Tvedte N812JT

Here is the factory's new side-stick option, with brochure.

Media:Sidestick brochure - small size.pdf

N74GP N74GP

John Tvedte's custom-engineered side sticks

N812JT,

More Photos

Doug Kanczuzewski Installation

Here are some pictures of my side stick set up. I run the long cables from the connection at the center up by the canard to the aileron bell crank, one cable each side. The worst turn is the bend from the canard down the side of the center tunnel to the floor, it is a 90 degree turn, but I have kept it to a large radius.

N77LY Side Sticks

The aileron cables, left and right, are attached above the canard.

P1030037.jpg

This is the connection at the end of the control stick that works the canard. Tough to get a lot of photos as most of it is buried.

P1030045.jpg

Here is a photo of the cable run up the co-pilot side.

P1030034.jpg

  • N77LY

  • N77LY

  • N77LY

  • N77LY

  • N74GP

  • N74GP

  • N74GP

  • N812JT

  • N812JT

Reiff Lorenz Installation

I posted a few months ago about running push-pull cables all the way from the dual side sticks to the aileron bell cranks at the wing root. Here is the final installation. It took a few tries to get the angles right so that there was not any stiffness or binding where they attach to the side sticks.

The cables run through the carbon beams, diagonally up the sides of the fuselage (I don't have any strake cutouts), and exit the firewall just above the spar.

I'm still really early in my build, and it will be a while before I install the avionics or engine, so I can't be sure yet about any interference or other unintended consequences. Since a few people asked, though, I'm posting the photos now that it's (hopefully!) done.

  • Reiff sidestick1.jpg
  • Reiff sidestick2.jpg
  • Reiff sidestick3.jpg
  • Reiff sidestick4.jpg
  • Reiff sidestick5.jpg
  • Reiff sidestick6.jpg
  • Reiff sidestick7.jpg
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