FLYWING BELL407 470 Class RC Helicopter GPS Large Model with ACE Flight Controller RTF Helicopter AI ROBOT which can charge 2 batteries

which can charge 2 batteries at the same time

ROS expansion board

ROFUN BAHA 5S with 45cc two-stroke four-point fixed gasoline engine (Huaboro I107

camera calibration

FLYWING BELL407 470 Class RC Helicopter GPS Large Model with ACE Flight Controller RTF Helicopter AI ROBOT which can charge 2 batteriesFLYWING Bell407 407 Scale RC Helicopter ACE Flight Control 6CH GPS Helicopter LED Light RTF Specifications: Product Material: Metal + Electronic Components Weight (without battery): 1100 g Main Rotor Diameter (Wingspan): 810 mm Main Rotor Length (Single Rotor): 370 mm Tail Rotor Diameter: 125 mm Tail Drive Motor: 2008 Brushless Motor Main Motor: 3508 Brushless Motor ESC: 60A Dual Brushless Velocity Controller Packaging: Paper Box Product Weight: 3000g