Abstract: A method for performing parallel flaw scans of a plurality of tracks of a storage device. The storage device includes at least one disk, at least two read sensors, at least two analog front ends, and at least two independent timing loops. Each disk includes at least one surface, wherein each surface includes a plurality of tracks. The method includes writing flaw patterns to tracks of one or more surfaces of one or more disks. The method also includes positioning a first read sensor to read a first track. The method further includes positioning a second read sensor to read a second track. The method additionally includes simultaneously reading signals from the first track and the second track. The method also includes simultaneously performing flaw scans on read back signals from the first track and the second track. The method further includes outputting flaw scan results.

Abstract: The warhead of a missile is loaded with a payload that can either be burned r exploded. If propulsion is lost and either aerodynamic steering is not present or the velocity level of the missile is degraded to a point where steering is marginal, steerage is maintained by igniting the warhead payload and exhausting gases through nozzles attached to the warhead.