High Risk of Adverse Impact Zone(HRAIZ) map The 412th Test Wing Mission is to Test, Evaluate, and Develop weapon systems to deliver war winning capability to our nation's combat forces. The 412th TW provides full spectrum aircraft research, development, test, and evaluation (RDT&E) capabilities for the Air Force, other services, governments and civilian contracts. Wind turbines built within the radio frequency line of sight of RDT&E systems can create significant adverse impacts to T&E activities depending on vertical height, electromagnetic sensitivity and distance from activities conducted on the range. The High Risk of Adverse Impact Zone (HRAIZ) map depicts the Air Force area of interest for R-2508 and Nellis Test and Training Range (NTTR) operational areas.