FPV drone I built commissioned by my friend. Took 2 months to finish this build, but seems to be well worth it. Flexible payload mounting system, able to do bottom and top
iNav Drone Complete Tutorial - Part 1 - Install and Flash iNav - YouTube
1/2) Installing INAV 3.0 onto a Quadcopter: The basic setup - YouTube
ArduCopter 7" Long-Range Standard Build - Blog - ArduPilot Discourse