First, off, I have a Frsky/9x w/er9x system.  APM 2.5

I am new to APM and trying to set my failsafe for RTL and of course some throttle.  

I assumed I would not have to set any F/S setting on the receiver?  Perhaps I am wrong... I bound my radio/rx at -150%/+150%, then returned to normal travel (100%) and have it set up in MP correctly.  

I.E.- My minimum throttle is 995 with throttle stick off.  My FS PWM value is 925, and when I shut my radio off, it goes to 900. This triggers the F/S and puts my plane into RTL.  ***However I get no throttle.  I assumed that I could set a F/S throttle setting in MP somewhere but I cannot?

I tried to adjust my Ch 3 (throttle) min PWM value to say 40-50% but then it activates at any flight mode other than manual?  I am quite confused.  

Another question, is how will an airspeed sensor effect this, as I have one, but I am new to APM yet, so to keep it simple I do not want to use it for the time being, but I would like to set a F/S setting to RTL, and a airspeed setting above stall, and have the APM run the throttle in F/S mode, is this possible as well? Is it as simple as placing a cruise speed while enabling the airspeed sensor? Thanks in advance!!!! 

I have read the wiki several times and cannot find this. I must be doing something wrong.

Jeremy

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  • Hi,

    I.E.- My minimum throttle is 995 with throttle stick off.  My FS PWM value is 925, and when I shut my radio off, it goes to 900. This triggers the F/S and puts my plane into RTL.  ***However I get no throttle.  I assumed that I could set a F/S throttle setting in MP somewhere but I cannot?

    That looks good!

    Don't worry that the plane doesn't get any throttle from the R/C when out of range. It will auto-throttle in RTL - even when the R/C is on. If you take the stick above center, you can add extra throttle manually however.

    Regards, Soren

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