To at the present time, the MiG-25s remain in company Although most of them happen to be upgraded in to the MiG-31. This two-seat update into the typical jet has the capacity to operate in a myriad of visibility and climatic conditions, continuing the File-15’s status for flexibility. From the http://www.drugoffice.gov.hk/gb/unigb/kowear.com/american-fighter/