Throttle Linkage on TT .46
 

I have a simple question. I just out a TT .46 engine into my Avistar trainer, and the pin on my gold-n-rod clevis does not fit into the hole in the throttle linkage. Is it ok to drill this out slightly so it fits, or do I need to get a different connector with a smaller pin?

Thanks
Jim

RE: Throttle Linkage on TT .46
 

Simple answer to your simple question...

Drill it out.

Just be careful that you don't go too big!

RE: Throttle Linkage on TT .46
 

As Minn flyer suggested yes just ream it out a bit. One big caution here though: Never, never ever use a metal clevis on a metal throttle arm. Use only a plastic clevis on a metal arm Also avoid like the plague an 'S' bend or an Easy just. Metal to metal on a throttle arm at this high vibration point will (not may) produce RF interferance when the hole and pin wear sufficiently to start resonating. Lots of aircraft have been lost to this.

RE: Throttle Linkage on TT .46
 

i had the same problem on my avistar and a TT .46... just drill it a tiny bit bigger and it will fit nicely.

RE: Throttle Linkage on TT .46
 

Thanks a lot for the tip, expecially the one about metal on metal for the control arm, I never thought of that. Once I get this throttle hooked up, I should be about 90% complete with the plane...

ScienceisCool, did you have issues with your push rod tubes and the receiver/battery location? What did you do about it?

Jim

RE: Throttle Linkage on TT .46
 

i'm not quite sure what you mean but i would just suggest the push rod tubes extend past the reciever and battery area or at least most of the way. Explain the problem ....

RE: Throttle Linkage on TT .46
 

With the receiver and battery on the provided tray, wrapped in foam and secured with the velcro, the push rod tubs don't have a straight line to the rudder servo for the nose wheel, or the throttle linkage for the throttle. They both bind and the servers "chatter" when moved. I'm ready to dispose of the tray entirely and figure out a way to velcor the receiver and battery directly to the fuselage bottom (inside, of course).

RE: Throttle Linkage on TT .46
 

what if you changed which side the rudder and nose wheel hooked into the servo? move the nose wheel to the outside... hope you know what i mean. any chance of getting pics? if not thats ok

RE: Throttle Linkage on TT .46
 

I've already got them both connected on the "outside" of the server control horn(nearest the fuselage wall). I won't be able to get pics up until tomorrow.

The thing that is interfering is the foam around the battery and receiver. It's 1 layer of 3/8" RC foam rubber. It's like I need to get the tray down another 1/2" into the fuselage or something. My battery is toward the front, and the receiver is toward the back. Servo connections on the starboard (right) side of the plane.

Anyway, I was just curious whether you had a similar problem when building your avistar. I was told there should be no chatter when you move the servos from one end of motion to another, or is a little acceptable?

RE: Throttle Linkage on TT .46
 

my servos have a little buzz to them, more like a little hum letting me know the thing is on.

so the actual rod is hitting the foam and thats causing it to bind? am i getting this right?