This meant that any asymmetrical thrust from the engine, or inaccuracies in the control surfaces, would be evened out as the missile spun.
He was taxiing on one engine and had to use gross opposite rudder to meet the asymmetrical thrust.
This allowed the engines to be mounted closer to each other and to the aircraft's centerline, therefore minimising asymmetrical thrust in case of an engine failure.
The remaining engine's asymmetrical thrust would cause the aircraft to yaw violently to one side.
In a multiengine airplane with an inoperative engine, the centered ball is no longer the indicator of zero sideslip due to asymmetrical thrust.
The plane immediately began to veer to the right, as a result of that asymmetrical thrust.
The tendency to turn right was offset by using 45 degrees of left aileron, combined with asymmetrical thrust of the two wing engines.
It seemed likely that one of the engines slipped to idle causing asymmetrical thrust and a loss of speed.
Thus any asymmetrical thrust from the engine or inaccuracies in the control surfaces would be evened out.
Centre line (CL) thrust is an absence of asymmetrical thrust from an aircraft.