Here are two sub micro coaxial helicopters each with built-in gyro for tail stability. One of the coaxial helictoper is using a 2.4Ghz receiver and the other one is a 72Mhz receiver. testing both helis in a tandem hover/flight.
Big Thanks to Sketchaholic of rcgroups.com for the receivers.
Wow, those bugs fly smooth. Great work!
elubb 2 years ago