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Dual Control Stick Option

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admin(at)arachnidrobotics
Guest

Posted: Wed May 24, 2006 7:37 pm Post subject: Dual Control Stick Option

Three months of building, and it's finally time to finish up the forward fusealge.  I have yet to order the plans for "Dual Control Sticks", and I don't want to rivet myself into a corner.  Can anyone tell me what parts, if any, within the fuse are modified to accept the control change?  What I want to avoid is completing a larger assembly, say the Center Wing Spar, only to find that it has changed enough to necessitate re-building it.  Drilling out rivets has become a cardinal sin around our shop.   

    Any helpful hints would be greatly appreciated.  



Tom and Brenda Henderson

601XL Scratch Building from Plans

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craig(at)craigandjean.com
Guest

Posted: Wed May 24, 2006 8:15 pm Post subject: Dual Control Stick Option

Do you have access to the builders area of Zenith's web site? These photo

guides are a good start:



http://www.zenithair.com/zodiac/xl/data/ds-1of3.pdf

http://www.zenithair.com/zodiac/xl/data/ds-2of3.pdf

http://www.zenithair.com/zodiac/xl/data/ds-3of3.pdf



Also the plans list what parts from the option replace the standard parts.

All I see are parts of the torque tube: 6B17-2 is replaced by 6DS1-3

(bellcrank), 6B17-4 (the torque tube itself) by 6DS1-5. 6B17-5 gets welded

on to 6DS1-5 (the DS torque tube). 6B17-3 gets slid onto the torque tube

before welding the stop ring to the front. In general the new DS torque tube

is supported on exactly the same bearings as the standard center stick's

tube. There is a linkage rod which passes over the spar which gets covered

by a cover (6DS1-2) which extends the normal center console cover 6B18-2.



The biggest addition is the supports for the tube which links the two

sticks. These two angle brackets (6DS2-3) bolt to the front of the spar,

each 288 mm from the centerline.



The DS option was designed to work easily as a retro-fit. I'm probably

missing something but I don't see any rivets you would have to remove. Just

don't rivet on the center console's top cover 



-- Craig



--

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JAPhillipsGA(at)aol.com
Guest

Posted: Thu May 25, 2006 8:28 am Post subject: Dual Control Stick Option

Tom, I purchased the duel kit from ZAC (maybe the 1st or 2nd built) and 

installed when the side skins of the fuselage were still removable. Made it a ton 

easier. You have to fish a special wrench inside the center spar to hold the 

nuts for the bolts that attach the stick brackets. Also, the rear bracket that 

holds the center control tube is different from the center yoke tube and has to 

be bolted on. So easy from the sides, a difficult event from the top I 

suppose. On the fuselage I recommend you hold off as long as possible before 

riveting skins as the ability to get in and under for instruments, wiring, cables and 

plumbing is greatly limited once all is nailed down. Best regards, Bill of 

Georgia

do not archive

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