Now that we are at it .... I want to bring up something else.
By standers... Are not safe either. Doesn't matter if you are a Rc pilot or not.. Anytime you have a plane or heli flying in the vicinity ... PLEASE keep a close lookout all around you.. Keep your head on a swivel. It's not a joke .
Pilots : please, if you hear a kid behind you , around you... Suddenly feel like you are surrounded please get your heli or plane on the ground ASAP, see whats the crowd/ situation, and please warn everyone around you to be very careful before you go up again. I might sound overly cautious here but it's worth it.
At 114th Rc field where I fly sometimes, there was an event that happened just a couple months ago. A regular weekend of flying.. And all heli pilots.. All pretty well trained and pros... These guys were standing behind pilot lines.. Much behind them facing away from the flying area... A pilot's logo 600 got out of hand.. And next thing we knew was that heli went into that by standing pilot... The guy was knocked pretty badly. Carbon fibre blades spinning 2000 rpm means destruction of anything in the way.
The victim, was in a coma for 3 weeks and has lost sight from one eye, and is handicapped in the lower body almost no movement as the heli hit the spine.
Don't mean to be ugly here guys. But the truth is the truth. He was nice enough still not wanting to sue the pilot but AMA wouldn't reimburse anything till he sued the pilot. So you can imagine how much heart ache and physical pain it can cause. Please take this as an advice. It sure opened my eyes. And I fly very carefuly now.
It's not a made up story y'all. So please .. PLEASE be careful!
That's when I added my tag line ---->
Fly safe!!

have fun!