length of pushrods

[Dillzio]

Hi all,

I've noticed that the pushrods seem to be a bit too long. I need to wind the clevis' down so far that the rod hits the pin at the end of the clevis.

I've got some new pushrods and a new tail so I don't think it's a wear and tear issue. The only way I can get them set right is to either adjust the servo arms so they're not at 90 degrees at rest anymore, or cutting about 1cm off the end of the pushrods.

Has anyone else experienced this, and how did you get around it?

-cheers

[900dukess]

Hi Dillzio, fellow cub owner from Australia,
I have the same problem at the moment. I will be intrested when you come up with a solution. I am about to add ailerons, so I should do something about it then, I just got to get some spare time, and seeing the weather has been great I dont want to take my cub out of the sky for a couple of days to do my mods.

[badlands]

What hole do you use on the horn?

[flydiver]

Get a Z-bend pliers and cut the end and recrimp it.
Remove the current clevis and put on a Dubro-EZ connect. Now it'll be too short to reach so you'll need a new rod anyway.
Make a new rod with above tools.

[killioughtta]

Hey, Dill. I'm back after a long break. lol. I haven't had that problem on the SC but I had to cut old pushrods down to fit my airboat back in October. I just cut and bent the rod in the Z-shape it needs at the servo-end. Maybe your servo arms are too long (or short)? I don't know.

OOT: any new videos?

[patmatgal]

Had a problem just like that, when you screw the clevis so far back that the threaded end of the control rod interferes with the control horn rotating on the pin connecting the flanges of the clevis (clear?, clear as mud!) I ended up taking off the servo arm and rotating that a notch then attaching it back to the servo, maybe I have more throw in one direction than another now but don't notice it.

[Legot]

when my cub was stock, at rest the servo arms wern't at 90 degrees, they were slightly pointed forwards. Does that help at all?
~Legot~

[Dillzio]

Hi gang, thanks for the feedback.

I've solved the problem by trimming some length off of the end with the Z-bend on each pushrod. Rather than cutting the whole Z-bend off, I just cut it off at the first 90 degree angle, then added one more bend to it with some vice grips and needle nose plyers. I didn't have the spare $20 to buy some Z-bend plyers, but the result was still OK.

Also, I wanted to strip some weight off my cub, as I remember it climbing much more easily in the past, and from watching videos on youtube it became obvious my plane is getting too heavy to fly as well as it should. I took off all the reinforcing tape I had behind the wing saddle, and the cloth tape I had holding the end of my tail on (after it broke). I now have the tail held on with a couple of thin pieces of normal clear sticky tape and some glue. I added one layer of packaging tape to the underside of the plane (2 pieces side by side), and one piece on top to hold down the antenna wire. I then rebalanced the plane, and found I could completely remove the 2oz of counterweights I'd added to the cowl to balance it out.

The plane is now at least 100g lighter, and weather permitting, I'll be taking it for a fly today. This will be my first flight since I lost my plane about 6 weeks ago. I can't wait!

I have taken one other in flight video, taken when I was flying from the caravan park I was staying at, the flight before I lost the plane due to the wind picking up and stealing it away from me. I'll upload it when I can be bothered :-)