Ft009 modified 4s 4000kv review of mods. Dadtech&rc.
The idea was to create a ft009 that was faster and cheaper than buying a ft012. See the build thread at;
https://www.rcgroups.com/forums/showthread.php?t=2649737
If you would like to see more projects like this please donate to
https://www.paypal.me/Dadtech
Post time: Oct-19-2017