- X4 QUAD LIGHT RCTIMER
- 2015-12-16 16:41
- Frame specyfication:569 gram including foldable landing legs15-17 inch propellers5 degrees dihedral14 inch tubes for arm
- X4/X8 reinforced copter
- 2015-12-16 16:38
- This copter uses several ideas to improve strength and conformability. The arm tube top left and right bottom is one lon