AT-99 Scorpion bi-copter ! short clip 

FC is my custom build SV79-F411 (use stm32f411 with MPU6000 and BMP280), firmware is Betaflight 3.2.5, ESC is Littlebee 30A in mode DSHOT600. servo is general digital with metal gear.

This's my latest bi-copter, design new fuselage for support both betaflight and INAV, this new video use INAV 3.0.2, ESC is littlebee 30A in mode MULTISHOT. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-aY56XhDpA_Q.html

PLA+, F411 flight controller 3 axis accel, 3 axis gyro. This's my version that minor change from Avatar RC V2.