Horizontally I'd say it's accurate to within a meter. Sometimes worse, sometimes *maybe* better. Vertically it's hard to know because the Iris+ relies mostly on its barometer for relative altitude. So I haven't payed much attention to the altitude according to the GPS. I bet that if you looked at your logs in Mission Planner you could graph both GPS altitude and barometer output against each other.
Replies
just fly it! The accuracy of the copter and the skill of the pilot are directly proportional to each other.
mp
Hi Erik,
Thanks four your reply, i only wanted to know theoretical accuracy by the manufacturer 3DR.
I don't know yet MP specially log files.
Regards,
Sylvain