Feiyu Tech FY91Q Flight Controller
Bought for a project, never used, has been sitting on shelf gathering dust. Complete V1.1 system.
Was purchased for, and will suit a fixed wing model or multi rotor as a flight stabiliser.
Note: This is not the Navigation Edition so does not include Compass/Gps Module - but if you add the (GPS) module then you would have a fully functioning auto pilot system with return to home function etc.
The manual for this system is freely available online.
