Why Was the Distance of a “100 Nautical Miles Radius\ of the DCA VOR/DME Selected?
After reviewing extensive data, we believe that only pilots flying within a 100-nautical mile radius of the DCA VOR/DME under VFR should be subject to the training requirement. Based on the statistics compiled, we determined that the majority of pilots who inadvertently entered the Washington, DC Metropolitan Area ADIZ had either originated their flight within this 100-nautical mile radius or their last point of departure was within this 100-nautical mile radius. Several alternatives were considered for who should complete the training, including subjecting only–(1) pilots residing in Virginia, Maryland, Pennsylvania, North Carolina, West Virginia and the District of Columbia; (2) pilots flying VFR over Virginia, Maryland, Pennsylvania, North Carolina, West Virginia and the District of Columbia; or (3) pilots that fly VFR within a 250 nautical mile radius of the Washington, DC Metropolitan Area ADIZ. We, however, believe that each of these alternatives is either overly broad or unduly
