A Boeing IM-99B BOMARC interceptor is shown in the firing position in its shelter during a recent test of the supersonic missile's ground support and launching equipment at Boeing Airplane Company's Aero-Space Division in Seattle. Missile and shelter are typical of the equipment slated for the Ent. AFB BOMARC site. Housed together with their ground support equipment within individual shelters, the BOMARC are virtually self sufficient and are launched and directed to their targets automatically by means of the Air Force's SAGE (semi automatic ground environment) direction system. Here the roof of the shelter has been rolled back, the missile erected and the erector arm retracted in the instant before firing. BOMARCs maybe fired either singly...