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Cox Engine of The Month
November-2024
Kim's

"A Space Bug Jr. pulls the Q-Tee up high over Sky Tiger Field"



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Happy What's it for?

Post  batjac Thu Nov 28, 2013 7:12 pm

Well, I was cleaning off the building table to make room for more projects, and I found this part that I'd set aside.  When I finished building my E-Z Bee II, I had this part left over.  I looked at the building instructions carefully to see what I'd left out, but the piece wasn't in the instructions.  I looked the plane over carefully, trying to figure out where it would go, but no luck.  So, I set it aside for later consideration.  Well, when I looked at it again it hit me exactly what it was for.  I'm sure a few of you can remember what these were used for.  Any one wanna take a shot at it?
What's it for? Ea1ff624-3375-4cc5-9977-c016a5b6cd67_zps6cb3188f
What's it for? 67a11aba-f28b-41ff-9690-9841668616a4_zps9623d231


The Quizzer Mark
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Post  pkrankow Thu Nov 28, 2013 7:16 pm

Were you working on curtain rods recently? Looks like most of a slider...

Phil
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Post  roddie Thu Nov 28, 2013 8:47 pm

is it a pushrod-keeper? I know I've seen one of those... or something very similar to it.
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Post  batjac Sat Nov 30, 2013 6:40 pm

Well, since there are no more guesses, I'll tell Y'all.  It's for flying the E-Z Bee using a single channel radio.  You mount it on top of the servo wheel to get a pushrod to the elevator that clears the rudder pushrod.  I'd use it with a EZ Connector.  I made a primitive drawing to show how it works.  When the servo is neutral, both rudder and elevator are neutral.  When right rudder is applied, the rudder pushrod moves out and the elevator pushrod moves in giving up elevator.  When left rudder is applied, the rudder pushrod moves in and the elevator pushrod moves in, again giving up elevator.  The beauty of this is not only its simplicity, but the fact that while the rudder input is linear, the elevator input is exponential.  A little right or left rudder doesn't need much up elevator, so it doesn't get much.  A lot of left or right rudder needs more up elevator, so it gets a lot of up elevator.  Pure genius.  Wish I'd have thought of it myself.  And, although the drawing I made is for an elevator horn on top of the elevator, it'd work just the same for an elevator horn on the bottom of the elevator.  You'd just mount the piece to the servo 180 degrees out, so that when right or left rudder is applied, the pushrod goes out instead of in!  I may have to build a single channel plane just to use this thing. One more project to add to the pile...
What's it for? DSCN0859_zpsf2733ac9

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Post  MrGoodwreck Sun Dec 01, 2013 7:13 pm

batjac wrote:Well, since there are no more guesses, I'll tell Y'all.  It's for flying the E-Z Bee using a single channel radio.  
Dang,

Now Im going to have to go open one of my EZBee box's just to see if you are right! Very Happy
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Post  batjac Thu Jan 02, 2014 1:20 am

Just saw this auction for an E-Z Bee on eBay that had this for single channel.  Here's a picture from the auction:
What's it for? DSCN0982_zpsa60d990f

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