At what point in the pattern must you be at 200 KIAS?

The requirement to be at 200 KIAS at radar initial is a standard part of arriving in a terminal area, especially for aircraft operating under specific air traffic control (ATC) guidelines. At radar initial, which is typically the point where aircraft begin their transition from en route to the approach phase, maintaining 200 KIAS helps ensure separation between aircraft and enables efficient handling within busy terminal airspace.

This speed allows for a streamlined transition into the pattern, allowing for effective traffic management by ATC. It also provides the pilots with enough maneuvering capability to make any necessary adjustments as they enter the final stages of approach and descent. The initial also helps establish a standardized speed that contributes to overall safety and efficiency by ensuring that all aircraft maintain a similar operational envelope as they approach the airport.

Meanwhile, the other options do not align with the procedural norms of air traffic management; for example, on base leg and during final approach, the speeds will typically be lower and tailored to the specific landing conditions and aircraft configuration. Similarly, before entering the traffic pattern, while speed control is crucial, the specific 200 KIAS requirement applies primarily during the radar initial phase to facilitate organized traffic flow and approach sequencing.