Hi guys,

So I'm using a CC3D controller with LibrePilot and everything's setup fine. I setup the vehicle using the Vehicle Setup Wizard and post that I even calibrated the ESCs. When I use the Test Outputs function under Configuration>Output, the motors run fine and stable at a Neutral rate of 1035. The problem begins when I armed the transmitter and give it a little throttle; the motors just keep on accelerating. I'm unable to identify the problem. Could it be with the transmitter? The transmitter does start beeping (and keeps beeping) after a while.

Any suggestions?

I have never used the CC3D or Librepilot myself. However, this sounds normal. The PID loop is trying to apply corrections when you arm. However, since there are no props on, the error cannot be connected and the I term just keeps growing and so the motors wind up. This would not happen with the motor sliders as the PID loop does not come into play there (at least in CF/ßF). I would suggest you just put your props on and try flying as long as you are sure everything else is set up fine.

The transmitter beeping sounds like an inactivity alarm. Which Tx is it?