Private Pilot Private Exam

What is the most effective method of scanning for other aircraft during daylight hours for collision avoidance?

1. A continuous scan of distant objects

2. A series of short, regularly spaced eye movements to search each 10 degree sector

3. Looking over your shoulder frequently

4. Using radar for aircraft detection

The correct answer is: A series of short, regularly spaced eye movements to search each 10 degree sector

The most effective method of scanning for other aircraft during daylight hours for collision avoidance involves making a series of short, regularly spaced eye movements to search each 10-degree sector. This technique helps to cover a wide area and enhances the likelihood of detecting other aircraft. By dividing the visual field into sections and systematically scanning each sector, a pilot can maintain situational awareness and effectively spot potential traffic that may otherwise go unnoticed. This method also minimizes the chance of missing an aircraft due to the concentration of attention in one area for too long, which can happen with continuous scanning. In contrast, continuously scanning distant objects may lead to a lack of detail and inadequate coverage of the surrounding airspace, while looking over your shoulder frequently is not as comprehensive and might not allow for the best overall visual search. Relying solely on radar for aircraft detection is effective but does not substitute for visual scanning, especially since not all aircraft have transponders that make them visible on radar. Therefore, the systematic approach of scanning in 10-degree sectors is optimal for maintaining a safe flying environment.