Here are the slides from the monthly report for July 2021 presented by Tridge, Randy and a couple of others at the monthly Partners call.
The images above is from an ongoing project to ensure ArduPilot can handle really long distances including transatlantic and transpacific missions of boats.
Thanks to our Partners for their ongoing support and input!
Still, the trend is there and I suspect the first AP vehicle to pass 1000km will be a solar powered boat. There was at least one person on the forums a couple of years ago building what looked like a solar powered surfboard to cross an ocean.
BTW, if people want to test long distances in the simulator it is fairly easy using Mission Planner and you can speed up the simulation by setting the “Extra command line” to “–speedup=20”