P-385-63 Range Safety Pamphlet Download
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Figure 12–5. Surface danger zone for firing PATRIOT missiles (2) The impact area is the area on the ground that contains the ground projections of all of the locations where the missile can be destroyed in flight. The boundary of the impact area is defined by the launch dispersion angle (A), the cross-range dispersion (W), and a line normally (90 degrees) to the centerline located 2 km greater than the intercept range. The azimuth dispersion angle (A) is 40 degrees on either side of the centerline. The lines that are drawn at angle A from the launch point intersect cross-range lines drawn parallel to the center line at a downrange distance of L meters from the launch point. (3) Area A (lateral secondary buffer zone) is the area on the ground that contains debris from a missile that is destroyed on the lateral boundary of the impact area. Action is taken by the trajectory safety officer to initiate the destruction of the missile when the missile intersects the flight corridor boundary. The debris from the missile follows trajectories that are determined by the kinetic, gravitational, wind and aerodynamic forces that act on the debris. (4) Area B is the area beyond the intercept point that contains the debris from a missile that passes the intercept point without being destroyed by the fuze functioning. The missile is automatically destroyed within 2.2 seconds after passing the target if the missile is not destroyed by the warhead when the fuze functions. The debris from the missile that is destroyed after passing the intercept point impacts the ground within Area B. The automatic termination interval varies and is classified as confidential for MIM–104, MIM–104A, MIM–104B, and MIM–104C, stand off jammer counter. (5) Distances Y and Z are based upon missile altitude at detonation and speed of cross winds. 12–7. MIM–23B Improved Hawk guided missile (Army) a. Firing conditions. (1) The Improved Hawk guided missile SDZ will be cleared of all personnel prior to firing a missile except as authorized below. 162 DA PAM 385–63 • 16 April 2014