Tridge (or other ArduPlane 3.8 devs),
I am building a MyTwinDream for autonomous mapping, using Pixhawk 2.1, Reach RTK GPS, Sony RX100 mapping camera, Dragonlink V3A, Tuffwing hotshoe cable, and SeagullUAV Map2 for firing the camera. My ultimate goal is mapping ~1,400 acres in a single flight with cm-level accuracy in the resultant contours, as well as a gorgeous orthomosaic and 3D mesh of the property. Power system is two Cobra 3420-14 850Kv motors with a pair of Cobra 40A Opto ESCs, powered by a 4S Li-ion for multi-hour endurance. Two questions for you re Arduplane configuration:
1) I plan to go dual elevator servos, for redundancy. How would you configure those in ArduPlane? My goal is not snap roll type aerobatics, but simply the ability to survive and get home should either elevator servo give out, or I should find myself in a steep dive above Vne type speeds, and need a bit more torque/pull on the elevator.
2) I am intrigued by separate motor channels for this twin. Obviously I could go single motor channel, and just Y-cable the motor signal to both ESCs. But it might be fun to play with separate channels, particularly if I put separate Mauch Hall sensors on each power train and have real-time visibility to mAh consumption on each side. That and playing with differential thrust mixed with rudder, perhaps on aggressive "crop duster" missions. On the other hand, why risk ~$2k in mapping payload to science experiments on relatively new code surrounding multiple motors? I welcome your guidance on this.