REFLECTOR: Dual Throttle Quadrant Part 4

[Brian Michalk]

I did not like the drag on my turbo wastegate cable, so swapped it with 
a slightly small diameter core.

Somewhere, I found what looks like regular bowden cable, but lined with 
Teflon or something similar.  Then I replaced the core.  Huge difference 
in required force.  Of course this adds extra slop, but that may not be 
a big problem with the way they are used.

Scott Derrick wrote:
> Richard,
> 
> Whewww!  That is a lot of work!  The 3 tubes in one looks like a huge 
> structure.  Go any idea how much it weighs? Thought about duplicating it 
> in ty or aluminum?
> 
> I've got dual throttles, but used regular push pulls.  There is 
> considerable force required to move them and I'm not sure yet how my set 
> up will play out.  My dual cable meet at the servo.
> 
> I wanted to use a mixer mounted up front and run just one cable to the 
> engine but never saw one I really liked.
> 
> Somebody mentioned using dual high quality push-pull cables like our 
> aileron cables, I would like to see that setup with a list of 
> manufacturers for he push-pull control and the cables..
> 
> Scott
> 
> 
> Richard J. Gentil wrote:
>> 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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>>
>>
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>>
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