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The principal difference between the Kiowa Warrior and its immediate OH-58D predecessor is a universal weapons pylon on both sides of the aircraft capable of accepting combinations of the semi-active laser Hellfire missile, the Air-to-Air Stinger (ATAS) missile, 2.75" Folding Fin Aerial Rocket (FFAR) pods, and a 0.50 caliber machine gun. In addition to these weapons, the Kiowa Warrior upgrade includes changes designed to provide improvements in air-to-air and air-to-ground communications, mission planning and management, available power, survivability, night flying, and reductions in crew workload through the use of on-board automation and cockpit integration.
Since the last OA conducted in FY94, the Army determined that modifications in mission and equipment over time have created a deficiency in the Kiowa Warrior autorotation capability. In general terms, the cumulative addition of new equipment caused the weight of the aircraft to increase dramatically, meaning that in the event of an engine failure or other similar occurrence, the aircraft lost some of its original autorotative capability, causing the aircraft to descend faster and experience an extended ground slide upon touchdown. As a result, the Army developed a two-phase Safety Enhancement Program (SEP) to reduce the safety risk to Kiowa Warrior aviators. The SEP consists of both training and material changes.
An improved version of the T-703 (R-3) engine will be installed which provides higher reliability and double the current overhaul interval, greater hot day power, and a Full Authority Digital Electronic Control (FADEC). The FADEC provides automatic rotor speed control, inflight restart, and performance recording, as well as more precise fuel metering capabilities. Additionally, an integrated body and head restraint system, a cockpit air bag system, and energy absorbing seats will be installed to enhance survivability in any crash situation.
Beginning in March 1997, a number of improvements were introduced into new production OH-58Ds resulting from Task Force XXI exercises that took place at Fort Irwin, CA in March 1997, to demonstrate the Army's concept of the "digital battlefield". These improvements include an improved Allison 250-C30R/3 650 shp engine equipped with an upgraded hot section to improve high-altitude/hot-day performance. The C30R/3 will be fitted with a full authority digital electronic control system that will replace the hydromechanical fuel control unit. The improved production Kiowa Warrior will have an integrated cockpit control and display system, master control processor with digital map and video crosslink, along with an improved data modem, secure radio communications, and a GPS embedded in the inertial navigation system. Additional improvements include an infrared jammer, infrared suppressor, radar warning receivers, and a laser warning detector to improve aircraft survivability.
The robust sensor capabilities of the KW in its mission as an armed reconnaissance aircraft, would be greatly enhanced by more effective communications within today旧 digitized battlefield. By using the highly integrated avionics already on the aircraft, this capability can be added with only minor hardware and software changes. Video Image Crosslink (VIXL) provides the KW with the capability to send and receive still frame images over one of the FM radios. The VIXL consists of a circuit card installed in the IMCPU. In 1996 the KW Product Manager旧 Office (PMO) developed four VIXL ground stations, which consist of an Aviation Mission Planning Station (AMPS) with a Tactical Communication Interface Modules (TCIM) and a SINCGARS radio. The ground stations will be used to transfer VIXL images on the ground. |
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