"Yeap, you are right, this seems quite complicate. And on top of that it will be dificult to understand the readings from the accelerometers during the transition from hovering to flight mode and viceversa... will be sufficient with the gyro data or…"
"In my opinion the best is to use an ultrasonic altimeter up to 16meter, then the GPS shall do the work. If you do not trust it , you could use a barometric sensor in order to have redundant data, and mixing both with a kalman filter.
Best,"
"@ Gian Carlo: I agree with you
@ Xander: Thanks for the link to Old Man Mike's, it's really a good job!
I never checked how long the hely will fly when fully loaded of batteries, but if you do so it will loose maneovrability and speed, so it will…"
"Hi everybody,
Based on my personal experience (I own an X-UFO and a few model helicopters e.g. Trex 450V2) I can tell you that if you want speed and battery life you need a helicopter. If you want just hover take some pictures, see the neigbourhood…"