Aeroscout in Safe Mode - Aileron controls also move rudder - Is that normal?

[Flyboy666]

I just noticed this today on my Aeroscout, and I want to be sure it's normal:

When in Safe Mode, if I move the right stick left or right, not only do the ailerons move accordingly, but so does the rudder.

When in Intermediate or Advanced modes, if I move the right stick left or right, only the ailerons move. In those two modes, the rudder does not move unless I move the left stick. (And it moves to a greater degree than in Safe Mode.)

Is that intentional, because in Safe Mode they want to add a bit of rudder to the ailerons for additional safety and stability when turning?

The plane appears to fly fine, but I just wanted to be sure, since I never noticed it before.

Thanks

 

[tudordewolf]

Your intuition is correct, it's to counteract "adverse yaw".

Even in intermediate and advanced modes, Safe will use tail controls to make it so that the aileron input performs a perfect aileron roll with no deflection off your initial heading, which I actually removed by swapping receivers on mine, because i wanted to learn those flight characteristics as part of my muscle memory

 

[Flyboy666]

Thanks for confirming. Regarding your link on adverse yaw, yes, I read about that in a book I have called Aviation Fundamentals. Like you, I have been trying to build some muscle memory by putting some rudder into my turns (even in Safe mode), to smooth them out and to get into the habit of it. (I'm told that many flyers don't use rudder in their turns, but I want to learn it the right way.)

Regarding your second statement above: I did not notice the rudder moving at all when activating the ailerons in intermediate and advanced modes; only in Safe mode (while on the ground, that is.) Are you saying that even in intermediate and advanced modes, the rudder will move a bit with the ailerons?

 

[tudordewolf]

Thanks for confirming. Regarding your link on adverse yaw, yes, I read about that in a book I have called Aviation Fundamentals. Like you, I have been trying to build some muscle memory by putting some rudder into my turns (even in Safe mode), to smooth them out and to get into the habit of it. (I'm told that many flyers don't use rudder in their turns, but I want to learn it the right way.)

Regarding your second statement above: I did not notice the rudder moving at all when activating the ailerons in intermediate and advanced modes; only in Safe mode (while on the ground, that is.) Are you saying that even in intermediate and advanced modes, the rudder will move a bit with the ailerons?

As far as I can tell, yes. On mine the rudder moved too even in intermediate. I would take a video but I swapped the receiver to a different brand entirely, with no assists at all, and I can tell from how it flies that Safe is still doing a lot of extra stabilization even in advanced mode.

It's basically fly-by-wire with a gyro doing "heading hold", where it maintains whatever pitch and roll angle you put it at until you move the sticks again. It's especially noticable when landing, when a lot of "wobbly" tendencies emerge that you'd have to correct for yourself without safe, but with safe it always lands as if the air is perfectly still - which is pretty incredible, admittedly, but I was using my Aeroscout as a practice plane for bigger nitros, so i wanted those effects as a "simulator" for my other safe-less planes.

 

[Hobbydude2]

I just noticed this today on my Aeroscout, and I want to be sure it's normal:

When in Safe Mode, if I move the right stick left or right, not only do the ailerons move accordingly, but so does the rudder.

When in Intermediate or Advanced modes, if I move the right stick left or right, only the ailerons move. In those two modes, the rudder does not move unless I move the left stick. (And it moves to a greater degree than in Safe Mode.)

Is that intentional, because in Safe Mode they want to add a bit of rudder to the ailerons for additional safety and stability when turning?

The plane appears to fly fine, but I just wanted to be sure, since I never noticed it before.

Thanks

Its been mixed, if you dont dig it, go to your shop manual, and there you will learn the ways of servo mixing, and the magic of altering it. Be warned, the programmers in the mystical land of Champ-ag-ne Illinoize chose that mix for that specific bird because its flight envelope called for it.