my first quad build has flown for the very first time - not very long & not very high, it is so b....y windy at the moment. a 450 with a kk2.1 controller. having been an aero modeller for many years the actual build was not very challenging but learning how & why they fly and understanding the control system is a new learning process. I'm not one for entering a number just because someone says to do it I want to know why and what effect it has. Now looking forward to a windless day and playing around with PI editor - all good fun!! What to build next???