In that photo, we can see, inside the aircraft, the recording instruments that indicates the variation of electrical conductivity of the environment. One electromagnetic (EM) sensor is clearly visible at the top-right corner of the picture, just under the wing tip. It was a success and that system was used for many seasons. Is this airborne EM sensors can replace the ones carried with the larger aircraft I mentioned before? Naturally not. With the big aircraft, they produce a map of electrical conductivity with a resolution of about 50 to 200 meters. With the smaller aircraft, we pinpoint sharp electrically conductive formations (ECM) spots (within 25 meters) on a map, but we have to fly at lower altitude. Once spotted, we can send a team that can investigate that point, often, within the same day. It is a more spontaneous way of doing exploration, somewhat like archeological exploration. As I mentioned before, my boss was a genius.