A member of the cabin crew for Cebu Pacific, an airline based in the Philippines, has disclosed the “secrets” of airplanes and the meaning of the black triangle.

Henny Joyce Lim shared a video with little-known facts on her @_hennylim_ TikTok profile.

In the clip, she said, “Number one. Passengers sitting next to the triangles get the best view of the wings.”

“If flight crew need to check the wings, these triangles let them know the best vantage points for the slats and flaps outside.”

“If you are flying an airline that allows you to choose your own seat, look for one of the triangles in the cabin. Anybody who loves taking window shots or videos will get the best view of the wings from these seats.”

Lim went on to explain that “those triangle-marked seats are either at number 10 or at 18