Abstract: Method and sighting apparatus for aerial bombing from a curved approach path in a plane other than a vertical plane. Computer calculates and drives proper lead angle for sight which includes a reticle for target tracking with freedom to move in two dimensions. Computation, which is based on the relationship of lead angle and rate of turn of the aircraft in a curved flight path through the bomb release point, also considers airspeed, initial distance to target, bombing distance from target, aircraft mass, and can account for wind velocity, bomb characteristics and air density.