Yes I did, I even built similar ones before, and an hour is barely a number in real scenarios or BVLOS (add preflight post flight check, etc), plus, when you add the connectivity part (anything to allow bvlos) or pro payloads that one hour becomes 10min unless you go fuel. Robotic world has alot of over hype monkey business, don’t trust any “fact” sheet. There’s a reason why balloons are used in some part of the world to carry these drones for long distance.