UAL10, a DC10, is departing from the approach end. N123JL, an LJ35, is waiting to depart from an intersection 600 feet down the runway. The soonest N123JL can depart is _ minutes after UAL10 _.

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Prepare for the Initial Tower Cab Test with targeted quizzes and informative explanations. Gain the knowledge needed to excel in your air traffic control career. Ace your exam!

Multiple Choice

UAL10, a DC10, is departing from the approach end. N123JL, an LJ35, is waiting to depart from an intersection 600 feet down the runway. The soonest N123JL can depart is _ minutes after UAL10 _.

The concept at work is wake turbulence separation for departures on the same runway. When a heavy aircraft releases wake vortices, the following lighter aircraft needs a safety interval to avoid encountering that wake. In this scenario, the earliest the Learjet can depart is three minutes after the heavy aircraft begins its takeoff rotation. The clock starts at rotation because that’s when the wake is shed and begins to affect the runway area behind the departing airplane. By waiting three minutes after rotation, the wake vortices have moved far enough away from the 600-foot intersection so the lighter jet can rotate safely without risking wake turbulence. Shorter intervals wouldn’t provide enough protection, and longer intervals would just add unnecessary delay. Taking off as the reference point would place the second departure too late relative to the wake’s initial impact.

UAL10, a DC10, is departing from the approach end. N123JL, an LJ35, is waiting to depart from an intersection 600 feet down the runway. The soonest N123JL can depart is ___ minutes after UAL10 ___.

Prepare for the Initial Tower Cab Test with targeted quizzes and informative explanations. Gain the knowledge needed to excel in your air traffic control career. Ace your exam!

UAL10, a DC10, is departing from the approach end. N123JL, an LJ35, is waiting to depart from an intersection 600 feet down the runway. The soonest N123JL can depart is ___ minutes after UAL10 ___.

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UAL10, a DC10, is departing from the approach end. N123JL, an LJ35, is waiting to depart from an intersection 600 feet down the runway. The soonest N123JL can depart is _ minutes after UAL10 _.

UAL10, a DC10, is departing from the approach end. N123JL, an LJ35, is waiting to depart from an intersection 600 feet down the runway. The soonest N123JL can depart is _ minutes after UAL10 _.