I've been chasing this for a while now so this morning I reset the APM in terminal and with the button, reloaded MP and reloaded the firmware for Arduplane V2.73. I left all parameters at default except cruise speed. The WP radius was 60 and the loiter was 40 it believe. I loaded the parameters into the APM and Refreshed several times.The Parameters stayed at 60 and 40. Flew a couple of simple missions and the plane looked smooth. Cool. Came back and refreshed the parameters and the WP radius was 9 and the loiter was 3. Is this a bug or what???? I never changed a parameter except the cruise speed.
Please, some input??