[vid] Multiwii Dualcopter with thrust vectoring coaxial motors

[ron van sommeren]

 

[Schiksie]

Ha ha dat is een mooi design Ron

 

[ron van sommeren]

several contra rotating prop brushless projects - RCG

Tweede versie, erg manoeuvreerbaar

https://www.rcgroups.com/forums/showthread.php?246407-contra-rotating-prop-brushless