The Helicopter-based Aerial Wireless Kit (HAWK) is a war-flying tool. It is more accurate than a war-walking or ... location granularity since it is not possible for cars and not convenient for people ...

I was inspired to make this video by Boeing CH-47 Chinook Helicopter. All you need is 3 plastic bottles, 2 dc motors and 1 battery. Follow instructions from this video to build same one or enjoy ...