http://www.kamov.net/more-helicopters/boeing/ah-64d-longbow/ Longbow Helicopter Equipment Improved helmet-mounted displays, an upgraded Plessey AN/ASN-157 Doppler navigation system, and Honeywell AN/APN-209 radar altimeter have also been incorporated. In service the AH-64D Longbow will have a dual embedded GPS and inertial navigation fit plus new secure VHF/FM radios. The helicopter’s improved navigation suite gives it near all-weather capability – the original Apache-A was more accurately described as having adverse-weather capability.
據了解,監委想釐清AH-64E前座副駕駛兼射手(pilot/gunner)、後座正駕駛或帶飛教官(PIC,Pilot in Command)在操控飛機上的關聯,認為軍方記者會將飛行時數較少的陳銘輝列正駕駛,是否表示飛機當時由劉操控,認為陳龍謙是在美受訓合格的種子教官,實施基本的滯空訓練,卻造成直升機呈45度完全失控狀態墜毀,完全不合常理,將要求軍方出示當日飛行任務前,陸軍是否曾對兩人執行酒測及血氧濃度檢查資料。