Servo
Single Rotor
Helicopter

This Helicopter has just one rotor, plus a tail rotor for heading.

Coffee
Quadcopter

An ARM controller controls four Propellers by four Servo Motors to bring a cup of coffee to you!

Drones
Swarm

Drone Swarms are more than the New Fireworks. More than a thousand Drones forming 3-D animated figures.

All Drones in Camellia Café

Structure and Aerodynamics
Electronics and Remote control