Abstract: A method is disclosed for airborne gravity and magnetic field surveying, in which the airborne vehicle is stabilized with respect to speed, direction of heading, and center of gravity, and in which the gravity meter is of adequate sensitivity and provides signals that are recorded at a high sample rate on a magnetic tape, with magnetic data collected and preserved which can be used alone or as a reference for checking the accuracy of the gravity data, and with the aircraft's position computed using a satellite positioning system, or a multi-range navigation system that is geodetically located.