RE: Good rotor rpm for caliber 30
I helped a friend setup his caliber and we found that the caliber likes lower head speeds probably due to the drive type. For normal flight mode 1550 rpm worked real good and for stunt or idle up no higher than 1800 with carbon blades or no higher than about 1750 with woodies. Going higher seemed to cause some stress on the drive. Just a warning also the caliber rpms sound like they are lower than they really are. I wouldn't recommend setting rpm by ear unless you're use to the sound of this heli. Very quiet bird compared to most other heli's