Communications and Light Gun Signals 7
Radar assistance to VFR aircraft (e.g., operations, equipment, available services, traffic advisories) (PA.VI.B.K3)
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An ATC radar facility issues the following advisory to a pilot flying north in a calm wind: “TRAFFIC 9 O’CLOCK, 2 MILES, SOUTHBOUND...” Where should the pilot look for this traffic?
Answer (C) is correct. (AIM Para 4-1-15) Traffic at 9 o’clock is off the left wingtip. The nose of the airplane is 12 o’clock, the left wingtip is 9 o’clock, the tail is 6 o’clock, and the right wingtip is 3 o’clock. With a north heading, the aircraft at 9 o’clock would be west of you.
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An ATC radar facility issues the following advisory to a pilot during a local flight: “TRAFFIC 2 O’CLOCK, 5 MILES, NORTHBOUND...” Where should the pilot look for this traffic?
Answer (A) is correct. (AIM Para 4-1-15) The right wingtip is 3 o’clock, and the nose is 12 o’clock. A controller report of traffic 2 o’clock, 5 mi., northbound indicates that the traffic is to the right of the airplane’s nose, just ahead of the right wingtip.
3 / 5
An ATC radar facility issues the following advisory to a pilot flying on a heading of 360°: “TRAFFIC 10 O’CLOCK, 2 MILES, SOUTHBOUND...” Where should the pilot look for this traffic?
Answer (B) is correct. (AIM Para 4-1-15) The controller is telling you that traffic is at 10 o’clock and 2 mi. 9 o’clock is the left wingtip, and 10 o’clock is 2/3 of the way from the nose of the airplane (12 o’clock) to the left wingtip. Thus, you are looking northwest.
4 / 5
An ATC radar facility issues the following advisory to a pilot flying on a heading of 090°: “TRAFFIC 3 O’CLOCK, 2 MILES, WESTBOUND...” Where should the pilot look for this traffic?
Answer (A) is correct. (AIM Para 4-1-15) If you receive traffic information service from radar and are told you have traffic at the 3 o’clock position, traffic is in the direction of the right wingtip, or to the south.
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5. ATC advises, “traffic 12 o’clock.” This advisory is relative to your
Answer (C) is correct. (AIM Para 4-1-15) When issuing radar traffic information, the controller will provide the direction of the traffic from your airplane in relation to the 12-hr. clock based on your ground track or magnetic course.
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