What is a good visual scan speed for military pilots?

Objective: Military pilot training is demanding and every day student pilots must demonstrate their ability to progress, at the risk of being excluded. From the first hours of flight, instructors assess students on their ability to manage flying situations. To do this, the students’ attention skills, especially visual, are examined through their ocular behaviour. Two aspects of the ocular behaviour of student pilots are of particular interest to instructors: speed and completeness of the visual scan. However, it is not easy to quantify these two notions objectively. We have sought to objectify the notion of speed of the visual scan by providing tangible and reusable metrics to improve understanding and communication on the topic