It's not only a quadcopter... it's an open source machine!

Failed but still teaches a lot.

Protect your flying machine!

Learn how to control a brushless motor wirelessly using Arduino micro controller and HC12.

This rocket engine was designed with the priority to go to space!!!!

This system can do a number of things for your rocket!

I wanted an additional analog control in FlightGear - nice, cheap and compact.

This will keep your rocket going straight without fins!