Under what condition can you request closed traffic?

The condition where you can request closed traffic is accurately represented by being at 140 KIAS after passing the runway midpoint. This is because, at this stage, the aircraft is in a suitable configuration and position to conduct closed traffic operations. The phase of flight allows pilots to effectively manage aircraft speed and make necessary adjustments for safety during the landing process.

Maintaining a speed of 140 KIAS after passing the runway midpoint is ideal for transitioning into closed traffic patterns, especially since this signifies you have sufficient altitude and speed control to enter the pattern without compromising safety. This consideration is pertinent in ensuring that the aircraft can execute a go-around or a touch-and-go efficiently if needed.

Other options present conditions that do not align with the procedural standards for requesting closed traffic. For instance, requesting closed traffic at high speeds like 200 KIAS while still relatively far from the runway may limit the time available for necessary calculations and adjustments, which are crucial for safety during landing operations. Similarly, requesting closed traffic only when cleared by RSU emphasizes the importance of air traffic control communication, and while it is indeed necessary to wait for clearance, there must be established positional criteria for the request. Finally, jumping to request closed traffic as soon as entering the pattern may not provide