Rapid racing drone spare parts rapid 3114 this flight controller is the same as the one used in the rapid racing drone kit 70 1141 so is an ideal as a spare or replacement unitthe spf3 gives you all of the features you need for the heart of your aircraft whether youre into fpv racing acrobatic flying or aerial photography the spf3 supports a variety of aircraft including tricopters quadcopters hexacopters octocopters planes and morethe spf3 runs the open source cleanflight flight