What would you do if given a standby instruction in an RSU pattern?

When given a standby instruction in an RSU (Radar Service Unit) pattern, the proper action is to maintain runway heading until 1 mile past the departure end. This choice emphasizes the importance of standard procedures and safety in flight operations.

Maintaining runway heading provides a clear and established path for the aircraft, ensuring that it is correctly positioned within the traffic pattern and facilitates safe sequencing with other aircraft in the area. This instruction is critical, especially in a training or busy airspace environment, as it mitigates the risk of collisions and allows the RSU to effectively manage the flow of air traffic.

The other options suggest actions that could disrupt the standard traffic pattern or safety protocols. For example, turning crosswind immediately could lead to conflicting paths with other aircraft not expecting the maneuver. Descending to 500' AGL without proper clearance could also create hazardous situations. Requesting clearance to change direction might delay your response and disrupt the orderly operation of the traffic pattern. Therefore, maintaining runway heading until the specified distance ensures safety and compliance with ATC guidelines.