On the topic of "test fixtures", this one below tested most of the first couple thousand Ravens... basically old style Christmas lights with circuit board attached to yes - a piece of 2x6. I had to calibrate the accelerometer, so each side of the 2x6 was rotated through during calibration. If I focused I could program/calibrate/testflight and package at 20 per hour... (one every three minutes). [I would be programming one while another was testing and I was prepping the small hardware bag and box.]
I'm sure Adrian's setup for the BlueRaven is a little more involved given the additional sensors but for basic baro/accelerometer, this simple setup worked just fine...
... I'm on a different computer now, but on some USB drive somewhere, I probably still have most of the original "manufacturing test flight" data files...
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