If DAL201 is preparing to depart after UAL433, what's the minimum time DAL201 must wait?

The minimum time DAL201 must wait after UAL433's departure is based on standard separation practices for departures. When an aircraft is cleared to take off behind another, a 5-minute separation is typically required to ensure safety and maintain adequate distance, especially under standard operating procedures. This time frame helps account for potential wake turbulence and allows sufficient time for the departing aircraft to gain altitude and speed, reducing the risk of wake-related incidents.

In this scenario, since UAL433 is departing first, DAL201 must wait a minimum of 5 minutes before it can receive its clearance for takeoff. This ensures compliance with separation guidelines and promotes safety in operations. The other time frames mentioned, such as 3 minutes, 1 minute, or 2 minutes, do not meet the required separation standard in this context.