Extended Data Fig. 5: The 18.2 gram flapping-wing robot with tracking markers used in flight experiments.
From: Passive wing deployment and retraction in beetles and flapping microrobots
a, The markers added only 0.2 gram to the robot. The avionics system is covered with damping foam to reduce vibration noise during flapping flight and for protection. b,c, Close-up of the wing in folded (b) and extended (c) configurations. The wings remain folded at the lower threshold (about 5° from the wing root spar).
