Patent ID: 8376280

Claim:
A method adapted to be used with a conventional exposed jam head optical device adapted to be mounted to an aircraft, the optical device including an at least partially transparent housing, a laser modulated to provide jamming radiation and rotating optics to direct the modulated laser radiation to a target, the rotating optics drive by motors, wherein the improvement comprises the steps of: Positioning the conventional exposed jam head in an airflow; and Positioning a separate windscreen type deflector in said airflow upstream and only upstream of said jam head and spaced from and ahead of said jam head to prevent erosion of or damage to the jam head, said deflector including a contoured plate swept aft and mounted upstream of said jam head, said deflector having a sweep angle selected to assure high speed airstream diversion from said jam head such that airflow is diverted outboard of said jam head to substantially divert said airflow away from said jam head for permitting unimpeded rotation of said jam head laser pointing optics and to reduce drag loads caused by said jam head, thereby allowing said jam head to point and track in high-speed freestream flows.