I am using Mission Planner 1.3.56 build 1.3.6672.30243. I am getting started with aerial missions.
At the Flight Plan screen, I create a polygon, then right click the polygon and select Auto WP>Survey (Grid). The Survey (Grid) dialog box appears, with lots of settings pertaining to the mission. Amongst these settings, under the Simple tab, I see settings for “Altitude (ft)” and “Flying speed (est) (mph)”. Units seem to be in English system.
On a recent mission, I set the altitude at 140 (feet). I clicked “Accept” at the lower right of the Survey (Grid) dialog box, and the waypoints and various commands are written in the lower part of the main Flight Plan screen. Nowhere on the waypoint list are the units expressed. The values from the Survey (Grid) dialog box were used to populate the waypoint list, and it shows “140” as the waypoint altitude.
I flew the mission this evening. I was quite surprised by the height of the flight. It seemed to be MUCH higher than 140 feet, and I’d say by eye that it flew at an altitude of 140 meters, not feet. I searched for whether Mission Planner supports English system of units, and found varying results, some indicating that English units are not support, others saying that it would be supported, etc.
Can someone sort me out on this? I consider this to be a somewhat dangerous situation, and one which could use improvement.