Peter_Mundy wrote:
They do require very accurate flying so lots of concentration.
Garmin GTN units support automatic navigation along a parallel-track survey pattern as a paid SAR option. It also includes circular orbits, sector search around a point (roughly like a radioactivity hazard sign), and spirally expanding square orbits. Avidyne mentioned it as well, but I am not sure if it’s already available.
I was told by one such pilot that the vertical tolerance is 25ft and lateral 50ft
You can see such patterns during anti-rabies vaccines dropping but types are more likely to be C172 or similar.
