REFLECTOR: Dual Throttle Quadrant Part 4

[Jack Prock]

Has anyone looked at or experimented with this:

http://triketek.com/linear_dualthrottle_main.html

It may not be hefty enough for our needs, but it would eliminate the 
dual cables back to the engine. 

Jack
  ----- Original Message ----- 
  From: Richard J. Gentil 
  To: Velocity Aircraft Owners and Builders list 
  Sent: Sunday, November 25, 2007 9:38 AM
  Subject: Re: REFLECTOR: Dual Throttle Quadrant Part 4


  Larry,

  The order on the quadrants are on each side:

  Outboard - Throttle
  Center - Prop
  Inboard - Mixture

  The largest diameter tube is also the shortest length tube and the Throttle connects to it on both quadrants.

  The middle diameter tube is the next longest length tube and the Prop connects to it on both quadrants.

  The smallest diameter tube is the longest length tube and the Mixture connects to it on both quadrants.

  I attached two pictures,

  Richard


  lawrence epstein wrote: 
    The system you have in the last photo looks like a good solution, except I am concerned about having the controls in a different order left-Right on the 2 quadrants.

    I like the idea of completely separate systems back to the engine compartment. This eliminates a single point failure (of both controls) mode.

    What does the factory system look like (I think they offer that option?)

    Larry Epstein







--------------------------------------------------------------------------
      Date: Sun, 25 Nov 2007 00:41:27 -0500
      From: richard at naples-air-center.com
      To: reflector at tvbf.org
      Subject: REFLECTOR: Dual Throttle Quadrant Part 4

      Sorry for so many emails. I am lousy at descriptions and I do much better with pictures.

      The next direction is I took three pieces of steel tubing from Aircraft Spruce and put one inside the other. Then I braised on steel tabs and used a bolt on each side braised to a flat plate for a bearing to pivot on. For my linkages, I took flat steel rods which I cut and drilled 6 exact duplicates which I attached with clevis pins to the throttle quadrants and tabs on the steel tubes. Then I took the reversing throttle quadrant on the co-pilot's side and modified it so it would be non reversing, which is needed with this new idea I am trying.

      I attached a picture of what I hope will be the solution for dual quadrants. I was wondering if anyone has been down the current road I am headed and has any pointers.

      This is turning into a HUGE time sink. Almost makes me wish my wife were not a pilot too, which would have negated the need for dual throttles.

      Richard 

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