In the event of breakdowns at nuclear industrial installations and in the event of any radiological incidents, it is important to ensure rapid and accurate information on the radiological situation to ensure that safety measures are taken as accurately as possible. The method of radiological aerial surveyAerial survey has long been used to control contamination of large areas. Over time, the development of radiological detectorsRadiological detector made it possible to detect the boundaries of the contaminated site and locate point sources. Advances in UAVUnmanned Aerial Vehicle  (UAV) control quickly made them suitable as an addition to aerial surveysAerial survey with piloted aircraft. However, this technology also has some peculiarities that present challenges in its application.