Carpilot

Has anyone else had trouble like this?

My Fuji BT-64A, with a linear throttle operation - it seems like even 1 click of power is a big difference in power.

My DX-7 radio does not have throttle expo in fixed wing mode so I intentionally made the throttle linkage non-linear, and hooked up the linkage as close to the servo shaft as possible, now it takes about 2.5 or 3 clicks of stick for what used to be about 1 to 1.5 clicks.

once I get past about 1/4 stick it seems to be pretty linear again.

I'm trying to get a "softer" low end for landings on a 1/5th scale mustang.

Anyone else have any other Ideas? Any would be appreciated.

mtwister

If you are new to gas, this is usually the first difference you will notice. Gassers have most of their throttle response below 3/4 throttle. I had to set a throttle curve on all my gassers because they are way to sensitive when set linear. Usually a good mechanical set up is a large arm on the carb and a short arm on the servo. Hope that helps,

Mike.

PAPE

I run the same fuji engine and it just works like that. I dont have expo onmy controller and I did the same as you, with a non linear arm mecanism helped a little but not what is wanted you need expo thats all

Carpilot

Well I made a new lever for the throttle linkage, kind of a straight bell crank, and cranked the travel adjust to max in both directions. I have alot of servo movement for very little movement on the carb now, it worked a little to good as now I don't have quite enough travel to get to WOT.

a little fine tuning and I think I'll have it about as good as it will get without throttle expo.