The distinctive aircraft is controlled with six degrees of freedom, compared to four for a normal quadcopter.
This makes it more stable, and capable of operating safely in more gusty wind conditions.
Wire detection is one of the hardest challenges for low-altitude flights.
Check out the flight test video released by Amazon below.
But our objective is to have a certified commercial program that allows us to deliver to customers.
Thats what were working toward, in months.
source: www.techworm.net