Mil Mi-X1
Encyclopedia
Mil Mi-X1 is a high-speed helicopter being proposed by Mil
of Russia
.The aircraft belongs to the same program as its competitor Kamov
's Ka-92 intended to create a new generation of middle-class helicopters cruising at about 500km/h (312mph). Its preliminary design and early specifications were unveiled at HeliRussia 2009 exhibition near Moscow.
The design is competing for a 1.3 billion USD project by the Russian government and Kamov is the other competitor.
’s solution to fighting the onset of the RBS is to offload the rotor with the help of the proprietary Stall Local Elimination System (SLES). According to Mil
Chief Designer Nikolay Pavlenko, the designers have already agreed to test SLES at Russia’s TsAGI
Central Aerohydrodynamics Institute.
Earlier the manufacturer asserted that using SLES alone would give the Mi-X1 a speed of 450–500 km/h. According to the updated information made public at HeliRussia 2009, the helicopter will have a cruise speed of 475 km/h and a dash speed of 495 to 520 km/h. This will be possible through the use of a pusher propeller and a number of aerodynamic improvements, including a retractable landing gear and streamlined forward and rear fuselage sections.
The Mi-X1 may be powered by two uprated Klimov VK-2500
turboshafts or two future Klimov VK-3000 currently under development. Similar engines are installed on Mil Mi-28
and Kamov Ka-50
attack helicopters.
Mil Moscow Helicopter Plant
Mil Helicopters is the short name of the Soviet Russian helicopter producer Mil Moscow Helicopter Plant , named after the constructor Mikhail Mil. Mil participates in the Euromil joint venture with Eurocopter....
of Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
.The aircraft belongs to the same program as its competitor Kamov
Kamov
Kamov is a Russian rotor-winged aircraft manufacturing company that was founded by Nikolai Il'yich Kamov, who started building his first rotor-winged aircraft in 1929, together with N. K. Skrzhinskii...
's Ka-92 intended to create a new generation of middle-class helicopters cruising at about 500km/h (312mph). Its preliminary design and early specifications were unveiled at HeliRussia 2009 exhibition near Moscow.
The design is competing for a 1.3 billion USD project by the Russian government and Kamov is the other competitor.
Design
The Mi-X1 is designed to have a take-off weight of just 10 tons, seat 25 passengers and fly to 1,500 km. It has one main rotor and a rear mount lift rotor. The helicopter’s single main rotor means that in order to travel at high speeds it will have to overcome the retreating blade stall (RBS). This phenomenon occurs at airspeeds of some 300 km/h, and leads to vibrations that may ultimately destroy the rotor. MilMil Moscow Helicopter Plant
Mil Helicopters is the short name of the Soviet Russian helicopter producer Mil Moscow Helicopter Plant , named after the constructor Mikhail Mil. Mil participates in the Euromil joint venture with Eurocopter....
’s solution to fighting the onset of the RBS is to offload the rotor with the help of the proprietary Stall Local Elimination System (SLES). According to Mil
Mil Moscow Helicopter Plant
Mil Helicopters is the short name of the Soviet Russian helicopter producer Mil Moscow Helicopter Plant , named after the constructor Mikhail Mil. Mil participates in the Euromil joint venture with Eurocopter....
Chief Designer Nikolay Pavlenko, the designers have already agreed to test SLES at Russia’s TsAGI
TsAGI
TsAGI is a transliteration of the Russian abbreviation for Центра́льный аэрогидродинами́ческий институ́т or "Tsentralniy Aerogidrodinamicheskiy Institut", the Central Aerohydrodynamic Institute....
Central Aerohydrodynamics Institute.
Earlier the manufacturer asserted that using SLES alone would give the Mi-X1 a speed of 450–500 km/h. According to the updated information made public at HeliRussia 2009, the helicopter will have a cruise speed of 475 km/h and a dash speed of 495 to 520 km/h. This will be possible through the use of a pusher propeller and a number of aerodynamic improvements, including a retractable landing gear and streamlined forward and rear fuselage sections.
The Mi-X1 may be powered by two uprated Klimov VK-2500
Klimov VK-2500
-External links:*...
turboshafts or two future Klimov VK-3000 currently under development. Similar engines are installed on Mil Mi-28
Mil Mi-28
The Mil Mi-28 is a Russian all-weather day-night military tandem two-seat anti-armour attack helicopter. It is a dedicated attack helicopter with no intended secondary transport capability, better optimized than the Mil Mi-24 for the role...
and Kamov Ka-50
Kamov Ka-50
The Kamov Ka-50 "Black Shark" is a single-seat Russian attack helicopter with the distinctive coaxial rotor system of the Kamov design bureau. It was designed in the 1980s and adopted for service in the Russian army in 1995...
attack helicopters.