How to check the value of angular velocity?

I'm trying to make an airplane/spaceship do a barrel roll, then stop, using AddRelativeTorque (pitch and yaw too, but let's focus on roll for now). I know I could use angular drag, but I would rather create a script for it. I found a script another poster made, and pulled some bits out that I could use, but I've run into a problem.

I can't work out how to check the angular velocity of the vehicle's rigidbody, so that the script knows when to apply counter-torque. My current solution (below) gives an error on the "else if" line, and I don't know how to fix it.

 public float pitchFactor;
 public float rollFactor;
 public float yawFactor;
 public Rigidbody controlledShip;

 void FixedUpdate ()
 {
     float horizontal, vertical;
     horizontal = Input.GetAxis ("Horizontal");
     vertical = Input.GetAxis ("Vertical");
     Vector3 localAngleVelo = controlledShip.transform.InverseTransformVector (controlledShip.GetComponent<Rigidbody> ().angularVelocity);
     if (horizontal != 0f) {
         controlledShip.AddRelativeTorque (Vector3.forward * (horizontal * (rollFactor * Time.deltaTime)));
     } else if (localAngleVelo.forward > 0.0) {
         controlledShip.AddRelativeTorque (Vector3.forward * (rollFactor * Time.deltaTime));
     }
 }

Any solutions?