Looking at some videos and photos of F/A-18 Hornets and Superhornets taking off from carriers and from airfields, I recognised, that the left rudder is pointing right and the right rudder pointing left.

Here's a picture:

• Why is that? Are there anyaerodynamic advantages?
• Is it also used as a airbrake to slow the plane down at landings?
• At which point of the flights are the rudders in this position and why? (Takeoff, Landing, Cruising, both?)
• Does the pilot steer them or is the work done by a computer?