VertiKUL

[electrotor]

This is what you get when you cross a quad with a fixed wing. Sure is ugly, but practical.

http://www.kuleuven.be/english/news/students-build-drone-for-transporting-packages

https://www.youtube.com/watch?v=omaxgFVDUWg#t=21

[Coyote]

I didn't once see it fly horizontal like a wing, just a labored slanted forward flight. For me I don`t see any advantage over a standard multicopter with a shelf to carry stuff.

[electrotor]

I think it is still pretty much in development but at 1:47 it seems to be in fast wingborne flight slowing down and transitioning to hovering by 1:57.
I like the idea of doing this all by differential thrust, thus eliminating the complexities and potential problems of a mechanical system.

[skyscraper]

Looks better than some, but , like Coyote would've liked to see it transition from vertical takeoff to high speed forward flight. Prob just a problem of getting the software right!

OTOH its not like its not a solved problem... 40 years ago.. :laugh:
Harrier - 1988 Documentary

regards
Andy

[electrotor]

There's something called the Quadshot which is similar and has been around for a couple of years.

http://transition-robotics.com/

https://www.youtube.com/watch?v=IK_-yTrwNtU

[electrotor]

OTOH its not like its not a solved problem... 40 years ago.. :laugh:

regards
Andy

Just a little beyond the average model flyers budget.  ;D
Mind you, plenty of old airframes available thanks to the wisdom of the Government retiring the fleet early and before the slightly expensive F-35 goes into service.

[dogzilla]

There is also the firefly y6 which does this and is affordable for modelers.



http://www.birdseyeview.aero

[Coyote]

Not exactly much payload carrying but DIY :

Quad copter hover plane test flight at NASA

[FPVSteve]

Flite Test - X-19 Humming Bird - REVIEW