hey guys so i finally got my brand spanky 450 pro 3gx set up today and headed out to the baseball diamond up by my house to give flying this bird a shot. so i get everything all ready to go,hear goes my first spool up everything is great stable a little shaky not to bad, and we have lift off about a foot off the ground ( i have never really flown helis befor just an arttech falcon only hovering) so i bring it back down power down. wahoo first flight( sorta lol) i am super stoaked now finaly i have a nice heli and nice dx8 controller im gonan love this hobby and progress. so here goes second spool up everything is good hovering bout a foot and a half of the ground go to land, powering down and all of a sudden POOOOOF!!!!! my main blade so flying out like daggers. now i am like WTF just happened ,i go pick up the blades and notice that either it pulled the threads out of the main-shaft, or i had not put enough lock tight on the threads did the bolt vibrate loose or did i not tighten them up? now i am i have no idea honestly im sure it was my fault being so excited to fly i must have overlooked something or walked away for a sec and forgot. im just glad no one got hurt. ps i dont fly with people around just me . anyhow that my maiden flight story my entry into this hobby, it was fun for the 10 minutes it lasted .now im on the net buying a ton of spare parts and extras so that if this or something else happens i have the parts to be able to fix my heli and get back on the field. moral of my story is check check and double check everything..