I've got a larger hexacopter that I'd like to get flying with an APM2.5, but the default settings are dangerously unflyable (massive low freq oscillations and virtually uncontrollable). After spending a couple of hours trying to get it flying correctly, I just can't get it to a point where it's 'nice' to fly. So, I'm wondering if some of you who are flying larger craft would mind sharing your settings?
Frame and motor specs are as follows:
Frame: Droidworx ADH6 (I think...can't remember exactly)
Size: Motor to motor distance 730mm
Motors: Axi2814/22 795KV
Props: APC 13x4
Batts: 3S 8800 65C TP packs
Weight: 2.6kg (ready to fly)
I've using the latest 2.9.1b firmware.
Thanks in advance for any help!