carrera mike

Help, what do you call this linkage connector that links 2 elevator pushrod to 1 pushrod and onto the servo? I've seen thembutdont know what they're called(proper nomenclature)to order or search for the piece.

Thanks!

Gray Beard

My Feedback: (-1)

It's called a dual coupler and there are a couple types. I have one in a pattern plane like your showing and I have the ball bearing dual coupler in an Extra I assembled for a student in his ARF. Wish I could remember what the Chinese instructions called it but it was really funny!! Central Hobbies stocks the ball bearing types.

invertmast

My Feedback: (23)

Its called copper wire and silver solder

jester_s1

invertmast beat me to it!

JohnBuckner

My Feedback: (1)

I would also call it as noted by GB a dual coupler. It is becoming more common on some arfs these days primarily the lite 3D types and mostly for two peice elevator although sometimes it can be handy for duel pushrod or rudder/tailwheel.

The common method is a slight bend where the two rods come together for an inch or so and two wheel collors used to lock them together. This provides good adjustablity and its easy to do. It is my preferred method sometimes when doing separate pushrods for a tailwheel.

Here is one of my warbirds that uses dual pushrods for both the rudder and the elevator with 2/56 rod ends in carbon fibre pushrods.

Just added another picture of a typical arf (Magic Extra) that I have not flown in recent years but it is a nice ship and uses the two dual rod coupled with wheel collor technique. It has always been reliable and just one effective method.


John

DavidAgar

My Feedback: (108)

I have to agree, copper wire and silver solder. I have discovered over the years that the more screw fittings that you have, the better the chance for a screw to come loose. Good Luck, Dave

carrera mike

Wow! thanks gents! Appreciate all the great tips. I sure have more ideas from you guys now.

I did find the part from my local hobbyshop. Heres a pix. i guess its called "Tripple Rod Connector" at least this one...

tazzzz

J B, where did you get that dual rod connector,,cant seem to find it anywhere,,,I sure could use those. TAZZZZ

JohnBuckner

My Feedback: (1)

Hi tazzzz I think you have it confussed it was Carrera Mike that found the Graupner product which in nice maybe a bit heavy. As for me I don,t use anthing except a bit or 2/56 rod end wire and a couple of large wheel collors.

Here is shot of another installation I have and in this case its for the tailwheel of a Moskito:

carrera mike

you got me curious John, so I weighed it, merely 2grams/0.05oz.

JohnBuckner

My Feedback: (1)

Ya you right but but those gram things sure do got a way of adding up

But betcha the "mearly' is better applied to the cost thing since I,ve hundreds of old collors laying around. And doing it my way cost nothing. Actually its not my way as more and more arfs are using it and its been a flawless method for me.

John

carrera mike

your way is better no need to buy anything.

carrera mike

Thanks for all the help gents!

acerc

I am adding one to the list of brass wire and real silver solder.