* http://www.multigp.com/
== Beginner guide/links/building Guides ==
* Learning to fly FPV, tips and tricks: https://www.youtube.com/watch?v=DXe6pPf2fXI
** Lesson 1: Fly in a straigt line, turn around come back, land LOS
* PID tuning (by IBCrazy): https://www.youtube.com/watch?v=5VXMXwzlNLU
* PID tuning 101 http://iflyquad.com/2016/03/11/the-pid-tuning-guide-short-version/
==== Racing ====
* FAI rules for organizing a race www.fai.org/downloads/ciam/SC4_F3FPV_2016
=== Failsafe with d4r-ii ===