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Radio - Servo - Gyro - Gov - Batt > Interesting Airtronics Stylus Throttle Hold Behavior
 
 
JKos
Elite Veteran
Location: City of California in the state of Maryland

Hello,
I just happened across an interesting characteristic of the Airtronics Stylus. You see, on my electric setups, I like to have the throttle "curve" for Normal mode be all zeros (0-0-0). I then flip into Idle Up and let the ESC handle the nice slow-start and smooth spool-up.

Well, it turns out that the Sylus' throttle hold setting is completely dependent on the values of the Normal mode throttle curve. With the Normal mode throttle curve at 0-0-0, the throttle hold setting has ZERO effect on the throttle position in Hold mode. It goes to the same position as 0 on the curve.

I came across this as I was trying to find the right throttle hold setting to be within the Schulze ESC's "throttle hold" pulse width (which results in a fast soft-start if you flip out of hold). I just couldn't get any difference in effect with settings from one extreme to the other.

Well, I finally hooked up a servo and quickly realized what was going on. I had to setup a mix in order to accomplish having a different throttle position in Hold than 0.

Thought I would throw this out there for anyone that might come across this same situation and happen to search here on RR.

- John

Protos -- Logo 10
08-20-2006 Over year old.
 
 
TMoore
rrProfessor
Location: Cookeville, TN

I don't remember electrics being around when the original design parameters of the Stylus were laid out. I don't remember any discussion of setting the normal mode at 0 throughout and then using a Flight mode to fly in so I'm not surprised there is an issue. Back when the Stylus was first available ATX had just come off of finishing up the Infinity and they took what they learned from that and did the 660 which has an interface much like the Stylus. This was a less expensive version of the Infinity. Once this was done, the Stylus was next.

TM
08-21-2006 Over year old.
 
 
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Radio - Servo - Gyro - Gov - Batt > Interesting Airtronics Stylus Throttle Hold Behavior
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