10-29-7 Had my second part failure on my T-Rex 600N yesterday.
The clutch broke. I know a lot have had clutch failures but I
think most have been due to building the heli without checking
the gap size. There has been some variances in the gap size on
some kits. The first kit I built had 0.012" per side which
is okay but mine had 0.0225" per side. Way too much! So I
put a Raptor 90 clutch liner in and got the gap to 0.008"
which was perfect. The gap size is still good and that is not
what caused the break. The clutch runout is 0.001". It looks
like the cause was material defect. Here are some pictures <1>,<2>