Tizzy wrote:I'm not clear on 'Attaching unbalanced payload changes the motor load balance, but not the drone attitude'. You mean when autopilot is on surely?
i think you put too much meaning to the whole "autopilot" and a seemingly unique ability to disable it by using the RC mod. in fact, wifi users disable it all the time, without even knowing someone calls it "autopilot", this is just the normal way to fly ardrone.
so what is "autopilot" and why it is so important in RC mods?
it is the ability to hold the position without drifting, when the pilot stops touching the controls.
normal ardrone apps sends the "hover" command whenever the pilot releases the virtual directional stick, which is very safe behavior for beginners - the drone stops immediately when the panicked pilot needs a while to think about the next move. but instead of releasing the control, we can also move it slowly to the neutral position, and keep holding it for as long as we need - the drone will then level the flight smoothly, without any twitches.
physical stick of the RC transmitter does not distinguish between "neutral position" and "neutral position but still touching", so there is an option to assign the additional switch to select between these 2 states, or, if you disable the "autopilot" permanently, it is like if you used freeflight while holding the directional stick all the time.
someone could even add an option in the wifi application to "disable the autopilot", like the RC mod does, but it is not very appealing, when every app "disables" it anyway every time you touch the screen.
Tizzy wrote:Perhaps I should just fire up the wifi controls and see what happens with AP (autopilot) on inside. Should give some indication of stability. But that will be tomorrow then as in the flatlands it's now too dark to do much without banging a nostril somewhere. I'll post back after a short indoors wifi-flight.
yes, definitely! you can try it on wifi with "autopilot" (not touching the screen) or without "autopilot" (when touching) and it won't change the way ardrone balances itself, just the amount of drift.