Microdrones 2004
September 21, 2004
Our microdrone hunter, Christophe Tardy, an engineer, has discovered new achievements. Since these are the work of private individuals, one might wonder how far American military developments are.
Christophe Tardy
The first site is
http://bicoreeos.solarbotics.net/index.html
There you'll find a flying dragonfly-like device, 9 cm in wingspan, weighing 3.5 grams, flapping its wings at 8 hertz, powered by a motor running on 1.5 volts.
Below is the motor and connecting rods:
When I was twelve, we built flapping-wing airplanes from balsa wood, Japanese paper, and "piano wire." The diagram below shows the construction method. For propulsion: use an elastic band. Include a few beads to make the bearings.
