I have been looking at various autopilots to add to my collection but I have one less common issue. I fly all winter and its not unusual for me to fly at -20C. I have been playing with the ardupilot code and looked into the devboard but now that I am getting into the stabilization aspect of the AP I am wondering if IMU's will even work without massive temperature drifts at cold temperatures. I have read thermopiles have difficulty getting a reading when snow is involved.
I assume an IMU would work so long as I let it temperature stabilize before flying (I let me heli's sit outside for 10min or so before I fly to keep the gyro drift down). My 2 IMU's I would be considering are either ardunio based IMU or the UAV devboard IMU but I am wondering if its worth purchasing either of these units if they will not function during colder temperatures. I am working to wrap my head around DMC and how they help eliminate drift but its all fairly new to me.
Opinions are greatly appreciated,