In the case of aircraft on diverging paths, what is expected after clearance for takeoff?

After clearance for takeoff, aircraft on diverging paths are expected to immediately diverge from each other to ensure safe separation. This divergence allows each aircraft to begin their flight while maintaining an adequate distance from one another, thereby reducing the risk of collision. In busy airspace or on runways that may not directly parallel each other, this immediate separation is critical for the safe and orderly movement of aircraft.

The other options suggest actions that are not consistent with maintaining safety and efficient traffic flow. For instance, reaching cruising altitude may take time and does not guarantee separation; circling back towards the airport contradicts the intention of departure and would introduce potential conflicts; and staying on the same radial would not facilitate the needed divergence in flight paths after takeoff. Clear and immediate divergence is key to ensuring the safety of departing flights and managing air traffic effectively.