the Iraqi and Algerian Air Force. In August 2018, the Russian Helicopters unveiled an upgraded Mi-28NE variant, with improvements made in the main rotor system and engine unit and new on-board radio-electronic equipment. The helicopter has enhanced armor and is fitted with modern directional IR countermeasures (DIRCM) against short-range IR guided missiles. Its rotor blades made of composite materials can withstand shells up to 20–30 mm, while the fuel system is to be fire and explosion resistant. It will be also capable to use the new 9M123 Khrizantema-V anti-tank guided missiles (ATGMs). Mi-28NM An upgraded version of the Mi-28N under development since 2009. The helicopter has redesigned nose hull due to removal of its nose antenna, new H025 radar station for all-round visibility, more powerful VK-2500P engines with FADEC instead of the previous Klimov TV3-117VMA engines and improved rotor blades to increase its maximum speed by 13% and cruise speed by 10%. Besides that, it has an upgraded fire-control system and new "Izdeliye 296" onboard radio-electronic data processing system. It will be equipped to carry the 9M123 Khrizantema-V and 9M127-1 Ataka-VM anti-tank missiles. It is also planned to be equipped with the new "Izdeliye 305" or LMUR multipurpose missile, designed for use against air and ground targets, and fitted with inertial guidance in initial flight, with mid-course updates by an operator before the target is acquired by the missile's own seeker, giving a range of . The Mi-28NM made its maiden flight in October 2016 and the state trials of the upgraded VK-2500P engines were completed in October 2020. A plan to upgrade existing Mi-28Ns to Mi-28NM standard has been approved. Mi-28D Simplified daylight operation version. Similar to Mi-28N, but without top-mounted radar and FLIR. Mi-40 Proposed armed transport version. Never reached prototype stage. Mi-28UB (Uchebno-Boyevoy, training-and-combat) Mi-40 The Mil Mi-40 was a projected utility version of the Mi-28, first initiated in 1983, announced in 1992 and shown at the Moscow Airshow in 1993. It was primarily intended for the "Aerial Infantry Fighting Vehicle" category as a successor to the Mil Mi-24 and Mi-8 assault helicopters. It was planned to use two 1,863 kW Klimov TV3-117 turboshaft engines, four-blade main rotor, four-blade Delta H tail rotor (both from the Mi-28), and retractable tricycle-type landing gear. It was expected to weigh 11–12,000 kg and estimated to attain a 3300 m ceiling, a 314 km/h maximum speed and a 260 km/h cruise