That guy may imagining he is grilling but let me tell you true story lol. The thin sound like something spinning you hear is brake fan. Brake fan is a propeller system spinning very high speed to cold down brake units. After landing break unit temperature reach around 300°C. And it should be decrease under 200 before take off cause meanwhile taxi, you may need use breaks again so it should not go more than 300. It may be dangerous and flame. So that’s why brake cooling is needed but not like he is doing. Hahahha i wish its just for fun. I met many pilots think still playing fsx. Gosh:( https://www.instagram.com/p/CFtkvlmnO5d/?igshid=2zodag4rxyy6