While the US AH-64 has performed excellently both in combat and in the export market, the Russian Mi-28 has only Iraqi and Algerian customers. The idea that Mi-28 will be chosen by India, however, in the end New Delhi chose the US AH-64. Mi-28 is also a line of attack helicopters with a long development time when the first flight appeared in 1982, but it was not until 2009 that the version capable of day and night combat entered service. After having an unimpressive first field trip in the Syrian battlefield, Russia has continued to upgrade to produce the Mi-28NM version. Currently in Russia’s official payroll, there is a Mi-28A version that is only capable of daytime combat, this version is not appreciated; Mi-28N is a version capable of fighting in all weather conditions including night and the upgraded version of Mi-28NM has only been commissioned in small numbers. To be fair, the Mi-28 is a line of heavy attack helicopters capable of delivering devastating blows to the enemy. However, the Mi-28 did not live up to expectations when it was designed to replace the Mi-24s. In the Syrian battlefield, the Mi-28N did not even prove superior to the Mi-24. This made many Russian generals criticize the developer. Perhaps that is why the manufacturer Mil bet on the Mi-28NM version. Compared to its predecessor, although there are not many major changes in appearance except for the nose, the changes brought from the inside have helped this aircraft achieve high combat performance. Weapons analysts said that with the introduction of the Mi-28NM version, the attack helicopter line was enough to line up with the latest US version of the AH-64E. There have been reports that the Mi-28NM was secretly brought to Syria to test fire by Russia to evaluate its combat performance and obtain positive results. It was from this real combat test that Russia quickly decided to put the Mi-28NM into mass production. In terms of structure, the cockpit of the Mi-28NM is reinforced more firmly, with an air-conditioning system, with additional protective armor, including a metal front windshield that is resistant to 12 bullets, 7 mm. The cabin has an additional layer of glass that separates the compartment between the two pilots, minimizing the possibility of the main pilot and the pilot pilot dying at the same time from enemy fire. The alloy frame of the Mi-28NM is able to withstand 20mm anti-aircraft shells. With the design applied on Mi-28NM, for the first time the principle of separating the cockpit between the main pilot and the pilot pilot has been applied. In the event of an emergency when the plane is above 100 m above the ground, the crew can parachute out when the plane crashes and crashes. The emergency exit system will be activated by the main pilot and the pilot pilot separately. According to Mr. Dmitry Litovkin, CEO of Independent Military Review, Mi-28NM is an attack helicopter version with enhanced tactical features, especially combat power. The helicopter is equipped with high-precision weapons, has a new control system integrated with artificial intelligence (AI). Mi-28NM is compatible, join the battle formation with helicopters, UAVs and other aircraft on the battlefield. In terms of firepower, the Mi-28NM heavy attack helicopter is equipped with a variety of powerful weapons systems, including new-generation multipurpose missiles and various bombs. The helicopter can attack stationary and moving targets within a radius of 8-10 km. Mi-28NM has a new LSN-296 aiming system, which can control two of Russia’s most powerful anti-tank missiles today, Khrizantema and Vikhr. The pilot of the Mi-28NM is equipped with a flying helmet with a specially designed target indicator system, displaying panoramic information to aim at targets in all directions. Mi-28NM is equipped with Nadterechny Н025 radar as well as a new generation of aiming and guidance complexes, including a control system for landing in dark and foggy conditions, which helps to improve combat efficiency. almost twice that of its predecessor. In the design of the Mi-28NM, the position of the radar transceiver remains above the main rotor of the helicopter. In addition to the upgraded avionics and body frame, the other difference is that the propeller of the Mi-28NM uses composite materials to make the helicopter more stable, the new engine is stronger but more fuel-efficient than that of the Mi-28NM. Predecessor. In addition, Mi-28NM is also equipped with a suicide drone. Helicopters can enter a predefined combat area and launch one or more drones from the cockpit. Once the target has been identified, the crew will report the data and monitor the kill launch process. Mi-28NM is capable of operating in all weather conditions, can fly in both automatic and manned modes, adapts to all kinds of terrain. One of the most practical improvements in the Mi-28NM is the crew’s “double control” mode. In the event that the main pilot is injured or killed, the pilot can still control the helicopter. Another improvement is that Mi-28NM is equipped with an additional radar system on the cockpit, capable of scanning around the aircraft, with a scanning angle of up to 90 degrees horizontally and 44 degrees vertically, helping detect and locate multiple targets at the same time. With such top-notch features, Russia’s Mi-28NM is expected to create a breakthrough in the combat capabilities of the Russian military as well as in the export market.

Upgraded Russian Mi-28NM attack helicopter. Photo: TASS The demonstration of the complex technical features of the Mi-28NM attack helicopter will be one of the most awaited events of MASK-2021. “The Mi-28NM helicopter has undergone many upgrades after being tested on the Syrian battlefield. Engineers have successfully experimented in real combat conditions to present the most powerful version of the ‘iron bird’ in the Russian air force,” said Professor Vadim Kozyulin of the Russian Academy of Military Sciences. . In terms of structure, the cockpit of the Mi-28NM is reinforced more firmly, with an air-conditioning system, with additional protective armor, including a metal front windshield that is resistant to 12 bullets, 7 mm. The cabin has an additional layer of glass that separates the compartment between the two pilots, minimizing the possibility of the main pilot and the pilot pilot dying at the same time from enemy fire. The iron frame of the Mi-28NM is capable of withstanding 20mm anti-aircraft shells. With this design, for the first time, the principle of separating the cockpit between the main pilot and the pilot pilot was applied. In the event of an emergency when the plane is above 100 m above the ground, the crew can parachute to escape when the plane crashes and crashes. The emergency exit system will be activated by the main pilot and the pilot pilot separately. Mi-28NM is equipped with a powerful weapon system and firepower. Photo: TASS According to Dmitry Litovkin, CEO of Independent Military Review, the Mi-28NM is the latest version of the Mi-28N series of helicopters. It is enhanced with many tactical features, especially combat power. The helicopter is equipped with high-precision weapons, has a new control system integrated with artificial intelligence (AI). Mi-28NM is compatible, join the battle formation with helicopters, UAVs and other aircraft on the battlefield. In terms of firepower, the Mi-28NM heavy attack helicopter is equipped with a variety of powerful weapons systems, including new-generation multipurpose missiles and various bombs. The helicopter can attack stationary and moving targets within a radius of 8-10 km. Notably, this improved attack helicopter is also equipped with a suicide drone. Helicopters can enter a predefined combat area and launch one or more drones from the cockpit. Once the target has been identified, the crew will report the data and monitor the kill launch process. Mi-28NM is capable of operating in all weather conditions, can fly in both automatic and manned modes, and is adaptable to all types of terrain. One of the most practical improvements in the Mi-28NM is the crew’s “double control” mode. In the event that the main pilot is injured or killed, the pilot can still control the helicopter. This is a feature that does not appear on other Mi-28N series. Another improvement is that Mi-28NM is equipped with a radar system in the cockpit, capable of scanning around the aircraft, with a scanning angle of up to 90 degrees horizontally and 44 degrees vertically, helping to detect Display and locate multiple targets at the same time.

Mi-28NM is capable of operating in all weather conditions, performing many tasks including armored attack, destruction of low-speed air targets, reconnaissance… This latest version will be released. introduced at the MAKS-2021 Military Show this summer. The performance of the Mi-28NM combat helicopter’s complex skills will be one of the most awaited activities. Mi-28NM combat helicopter. Photo: RBTH The Mi-28NM made its first flight at the end of 2016 and has undergone state tests over the past few years. In June 2019, the Russian Ministry of Defense signed a contract for the supply of 98 aircraft of the Mi-28NM version. The first batch was delivered to the army in 2020. The production of Mi-28NM was also carried out at the Rostvertol plant. “The Mi-28NM helicopter has undergone an upgrade and modification process after the “fire test” in Syria. Engineers have tested the Mi-28NM helicopter in real combat conditions to present to the public a version of the most powerful combat helicopter in the Russian air force,” said Professor Vadim Kozyulin at the Institute of Military Science. Russia said. What’s new in Mi-28NM? The new cabin of the Mi-28NM is protected by armor, including tempered glass in front that can withstand 12.7mm bullets. The armor barrier between the non-crew members also limits the ability to deal consecutive damage to both pilots. This baffle can withstand the impact of 20mm bullets. This is the first time on the Mi-28 helicopter that there is a partition between the two main pilots and the co-pilot. The pilot and copilot emergency exit systems can be activated separately. Mi-28NM has been “fired” in the Syrian battlefield. Photo: RBTH “The Mi-28NM is the latest version of the Mi-28N helicopter. It is enhanced with many capabilities, including mobility. The new helicopter is capable of using high-precision weapons, has a new control system with integrated AI. Mi-28NM can interact with helicopters, UAVs and other aircraft on the battlefield,” said Dmitry Litovkin, Executive Director of Independent Military Review. The “weapon” of the Mi-28NM helicopter also includes kamikaze drones – a type of suicide UAV. “The Mi-28NM can deploy and control one or more suicide UAVs. When hostile objects are detected, the pilots will provide target data and monitor the removal of those targets,” the expert said. The Mi-28NM helicopter can operate in difficult weather conditions, capable of flying in both piloted and automatic modes. One of the key practical changes for the pilot on the Mi-28NM is the dual control mode: in the event of a primary pilot’s injury or death, the co-pilot can continue to control the helicopter. Mi-28N does not have this mode. According to publicly available information, the main difference of the Mi-28NM is that it is equipped with a radar and thermal imaging support system, with the ability to scan around the aircraft instead of a few directions. Mi-28NM has a huge arsenal, including new generation multi-purpose missiles, including those launched beyond the enemy’s air defense identification zone, as well as various types of bombs. The helicopter can attack fixed and moving targets within a radius of 8-10 km.

The apartment is so hot and hot that the living space becomes stuffy. People living in apartments often suffer from hot air and direct sunlight will suffer health problems, and furniture will also be damaged quickly. Western-facing or western-facing apartments have high heat absorption. (Illustration) If you are facing the above problems, homeowners need to apply anti-heat measures based on 3 basic principles, which are: Reducing the absorption of heat into the apartment; create natural ventilation; and increased insulation. Reduce heat absorption Hot air from the outside enters the apartment through a wall or window surface. Therefore, to reduce heat absorption, homeowners should use light-colored wall paint or furniture. Limit the use of glassware on balconies or windows. If the glass cannot be replaced, cover it with insulating glass paper, curtain or curtain. It is recommended that the insulating glass be used in western windows. (Illustration) To cool down the apartment, homeowners should plant many trees. This not only makes the space more green, but also helps to make the air cleaner. Create natural airflow In order for the living space to be naturally ventilated, the first thing homeowners need to do is arrange interior items neatly and intelligently. There should be one window in the air-inlet direction and one in the out-air direction. A neat and reasonable interior layout also contributes to natural airflow. (Illustration) Heat absorption in closed walls will make the apartment hotter. Therefore, homeowners avoid sealing the wall area where sunlight shines on. Insulation There are many methods of insulating the wall of an apartment in the West, where it is exposed to the heat every day. Homeowners can refer to popular insulation materials on the market today. Plasterboard helps insulate the wall of the apartment quite well. Plaster has good sound insulation, high aesthetics. Plaster can be combined with other insulation materials such as glass wool or PU foam sheet. An insulated air bag is also an effective option. This airbag is constructed of pure aluminum film, helping the apartment to resist heat during sunny days or release heat in winter. Planting lots of trees on a balcony is also an effective way to combat heat. (Illustration) An equally effective method of insulation is the use of PU foam insulation. This material has quite good sound insulation, but homeowners should combine with plaster walls to create more aesthetics. At a balcony or window, where it is directly affected by sunlight, homeowners should use insulating glass instead of ordinary glass. More simply, you can use curtains or blinds to shield. Along with that, use heat insulation paints and bricks. Growing trees on the balcony is also a solution with many benefits. Trees help reduce heat absorption, while purifying the air and preventing dirt from entering the house from the outside. Phuong Anh (synthetic)