Blind landing now possible. Washington D.C. It is now possible to make blind landings which has been one of the biggest difficulties to aviation. It is this single instrument located above the panel in the center directs him to the ground in a curved track and also in a straight line so as to hit the runway that is chosen for the landing. By watching the above instrument the pilot can direct his plane to the ground and determine whether he is to the right or left or above or below the beam that is transmitted. In tests that have been made the pilot has been able to land repeatedly within a few yards of the same spot