Test flight of a prototype unmanned aerial vehicle (UAV), designed and built using fused deposition modelling by the Design & Prototyping Group at the University of Sheffield AMRC with Boeing.The drones airframe is printed in ABS plastic.
Check out other 3d printed drones.
Source:
https://www.youtube.com/user/AMRCsheffield?feature=watch
Update:
Now you can read all about this drone project in PDF paper released by the team:
http://www.namtec.co.uk/userfiles/files/Powered_CASESTUDY.pdf
The design is updated to be more 3d printeble on FDM machines, but the parts of the wings are carbon fiber.
There is a new video: