F3C
https://www.belairmodels.be/sport/r-c-helicopters/f3c
https://www.belairmodels.be/@@site-logo/logopoint.png
F3N
...also known as "3D-helicopters"
https://www.belairmodels.be/sport/r-c-helicopters/f3n
https://www.belairmodels.be/@@site-logo/logopoint.png
...also known as "3D-helicopters"
