World's Smallest Cyclocopter: 29 grams
Innovative carbon composite rotor blades (0.12 grams each) and pitch links (10 milligrams), sub-millimeter accuracy, custom 1.3-gram autopilot.
Cyclocopters get particularly interesting at very small scales because of their combination of very high maneuverability and potential for excellent efficiency. They have experimentally demonstrated the higher aerodynamic efficiency (thrust per unit aerodynamic power).
Do you have any data on this "excellent efficiency" ?