HryneK poleca

A series of cameras on the outside of the stealth warplane feed high-resolution images into the helmet, including infra-red images at night, which are then projected on to the inside of the pilot’s visor. Special sensors inside the cockpit track the movement of the helmet, so that when the pilot turns his head his view of the skies or ground outside changes accordingly. […] When he looks down he sees not his own feet on the cockpit floor but the ground below, slipping past at hundreds of miles per hour.