Guys,

Ok just got done mounting the elevator serovs and making the push rods. Well I copied the pics in the manual. Well I have full up throw but very little down throw. The clevises hit the push rods. Anyone else have the same problem? And anyone have pics of there setup? Going to try longer arms and see if this helps. But I just thought I would ask in the mean time.

Thanks
Brian

You will need longer servo arms, or you can go to ball links at the servo end, that gives a bit more clearance.

We sell the clevises in the hardware kit because I believe they are safer, but you have observed the downside, they don't work well at extreme angles.

TF

You will need 1-1/2" aluminum servo arms. Contact SWB Mfg. or Air Wild for sourcing. Go to the hobby shop, or contact Nelsonhobby.com/newsite, and obtain RCL70 linkages. It includes excellent ball link assemblies that are bullet proof and work perfectly.


Tom advises not to use ball links on plastic servo arms, and I believe that his advice is well given.

1.5 is getting on the dangerous side with the arms 1-1.25 is the ticket being 1.25 for the long ones

Get a set of the 4-40 Rocket City ball links. Tom mentioned that they are not his favorite setup and they used not to be mine, but I am a sponsored heli pilot for Robbe-Schluter helicopters, YS engines and a few other companies. They are NOTHING but ball links on a heli. That is all there is as they are slop free and there is no such thing as a straight 90 degree hookup on a heli. I fly a 90 size heli and for those of you who have seen one fly you know the EXTREME stress and leverage they put on one. I have NEVER had a ball link pop EVER and I'm been flying helis for over 7 years now and planes for over 20. I use RC hardware like Tom recommends on all my planes and a RC ball link on the servo end and the ball link come with a ball that spaces the connection away from the arm enough to stop just the problem you are having. It you are still scared then put a small washer on the bot that runs throug the ball then then it 100% can't come off, but there is no need. The only way a ball could pop off is you have a SEVERLY bad mechanical setup like it was way off center and even then it would bind the servo up first I think. Years of their use have proved them to me. The only way to go I think. I use only RC as they make a good high quality one. Ones like the dubro are not near as good.

Norman Ross Jr.

Here are some pics of my setup. 1.5 inch SWB arms and rods made from Toms hardware kit and dubro ball links.

Montanacharlie

montanacharlie

how many degress r u running on your 3d rates?

i did
A-23
R-40
E-40
b-4 i sold mine

Krayzc-rcu
I went for max throw on everything. I don't have a degree guage. The one I have is in inches. So i just eyeballed the low rates and went for the max on high rates.

montanacharlie

I changed mine from the manual to get truer linkage geometry and 55deg up/60deg down elevator travel.

Brian

Guys,

Thanks for the advice. Yea I am going to use the ball links.

Thanks again
Brian