Double ended rocket city ball links?

[RightThrust]

I'm trying to add another servo in the tail on a push-pull setup which already has rocket city heavy duty ball links. Does Rocket City or anyone else make heavy duty ball links with the big balls, compared to the durbo stuff, that has two ends so that I can mount a servo right behind another with a pro-link? Trying to get this done quick but I'm wandering if I'm just going to have to change arms and use the dubro stuff since they have the double-ended links.

-Kelly

[Dan767]

The only other options I can think are H9
http://www.horizonhobby.com/Products...ProdID=HAN3619

The other would be Titan, but have no link to their products.

I think this is what you're looking for.

[vatechguy3]

another option would be to use a full arm on the second servo. use the top for the forward servo and the bottom for the rudder control horn.

if my description doesn't make sense, let me know and i can draw a pic.

tony

[N726AC]

Like this?

http://troybuiltmodels.com/GHardware...tm#ball%20link

[Tired Old Man]

You can use a pair of the Rocket City/Nelson Hobby links and join them together with a vey short piece of 4-40 all thread. You can get the ends of the ball linkls to touch that way if you want. The shortest Pro Links leave a bit of a spread between them but are a lot easier to adjust.

The downside of the pro links is that you have to buy some ball links that are either not threaded (Dubro or special Rocket City) or have left hand threads for one end of the Pro Link. I believe you can get them from Nelson Hobby and H-9. The Nelson/Rocket City parts are much better than the H-9.

Wild Hare R/C also carries a similar ball link. It's the closest to the Rocket City design of any others on the market that I'm aware of. I would call or e-mail him to see if he has any that come unthreaded.

[RightThrust]

Spoke with Sukhoi26 about it earlier. I'm going to get double sided metal servo arms and gang the two servos with the bottom of the arms and connect them to the rudder with the top of the arm. I'm just going to use the Dubro ball links, do they come unthreaded? If so that'l make it easy.

-Kelly

[gzkpez]

There are also the Kavan ones in metric or standard. http://www.sigmfg.com/cgi-bin/dpsmar...FV4.html?E+Sig

[Dan767]

	Quote: Originally Posted by RightThrust
	Spoke with Sukhoi26 about it earlier. I'm going to get double sided metal servo arms and gang the two servos with the bottom of the arms and connect them to the rudder with the top of the arm. I'm just going to use the Dubro ball links, do they come unthreaded? If so that'l make it easy. -Kelly

They are NOT threaded.