Boeing unveils huge autonomous cargo drone

A huge autonomous drone that can carry the weight of two baby elephants has been unveiled by Boeing. The heavy-duty quadrocopter can transport payloads up to quarter-of-a-ton, and Boeing says it may use the drone to shift heavy cargo in future. After designing and building the craft in just three months, Boeing says it has already put the vehicle through flight tests at one of its research centres. A huge autonomous drone that can carry the weight of two baby elephants has been unveiled by Boeing. Powered by an electric propulsion system, Boeing's CAV prototype has eight helicopter-like rotors, allowing for vertical take-off and landing.