Very interesting, and especially well presented, thank you!
Please can I +1 the request for MachUp to be available in other countries (South Africa). I have used XFLR5 extensively for swept flying wing design, esp. foregoing any extra…"
"@Glen Thomas: I think your motor failure on 1st and 3rd flights might be related to motor timing on the ESC. Check the motor specs, but I would try ramping the timing up to 15-20 degrees."