Well folks, here’s your opportunity to fulfill all your
childhood dreams of having a robotic helicopter. Check out the Cheap Robotic Helicopter Howto. The intro reads:
This document explains how to build a 300 g, 3D-capable helicopter with
embedded Linux and Bluetooth datalink for less than 500 EUR
This is a companion discussion topic for the original entry at https://community.robotshop.com/blog/show/roll-your-own-robotic-heli