"My only suggestion would be make sure you use stackable headers for the shields this time like the regular arduino shields. With the first expansion board that was made the headers were not stackable and were offset for additional boards."
"Another interestiing point is that this appears to be an instance of commercial operation of a UAV within Australia. I was under the impression that this was essentially impossible with the current regulations."
"A question for with regards to thermopile replacement, The magnetometer is required because there is no GPS ? But 3 of the 4 systems that this is looking already have one on board. Was this decision not to have gps info fed through the imu based on…"