Carrier Air Traffic Control Center Practice Test 2025 – Comprehensive Exam Prep

Sidewinder 24, when receiving a signal delta, indicates a command to descend to a specific altitude. The terminology "Angels" is often used in aviation to refer to altitude in thousands of feet. Therefore, "Angels 16" refers to an altitude of 16,000 feet.

In this scenario, the expected operations and flight protocols would dictate a specific level-off altitude after receiving a delta signal, which is typically a decrement from the current altitude. Given that Sidewinder 24 is initially at Angels 16, the descent would need to bring the aircraft to a common altitude that's operationally safe and standard for engagement or airspace requirements.

Choosing Angels 9 as the level-off altitude strikes a balance between maintaining a sufficient altitude for safety, particularly during the approach phase or before potential landing procedures, while also being below the initial altitude of Angels 16. This choice also aligns with standard practices for altitude adjustments in air traffic control, where a considerable drop of around 7,000 feet is appropriate for transitioning from a high operational level to a more manageable altitude for the next phase of flight.

Thus, Angels 9 is the correct altitude for Sidewinder 24 to level off at after receiving the signal delta, ensuring