diydrones/ardupilot — pull request #1041 by R-Lefebvre (2014-05-03 01:00:40+00:00)
Title: Arducopter 3 2 pr 1

Changes to AC_PID, creation of AC_HELI_PID subclass. Move Tradheli Rate FF params to AC_HELI_PID. Addition of adjustable filter rates on AC_PID D-terms.