¿Cómo evitar colisionar con obstáculos y el terreno?

Muy buen video de la gente de la Air Safety Institute, acerca de cómo evitar colisiones con obstáculos y con el terreno.

"For many pilots, accidents involving terrain and obstructions fall into the “can’t happen to me” category. But getting caught in a tight situation is easier than you think, and escape can be difficult or impossible. This video aims to raise awareness of the risks and help pilots recognize potentially dangerous situations before it's too late"