I just saw this today on FliteTest's channel:
http://curtisyoungblood.com/V2/content/stingray-500
The design is awesome, using a single motor and a belt drive. The thing hovers and sits still without even GPS lock or altitude hold - although they say they're adding that in the future.
http://curtisyoungblood.com/V2/content/stingray-500
The design is awesome, using a single motor and a belt drive. The thing hovers and sits still without even GPS lock or altitude hold - although they say they're adding that in the future.