Ulan-Ude. Mi-171A Mi-171 civilian passenger helicopter modified to meet FAR 29 and JAR 29 requirement. Mi-171A1 Mi-171 civilian cargo helicopter modified to meet FAR 29 and JAR 29 requirement. Mi-171A2 Highly upgraded version powered by VK-2500PS-03 engines (civil version of the engines installed on Mi-28 combat helicopters), digital navigation system with data display indication reducing the crew to two people, and a new rotor system. The Mi-171A2 has been certified by India, Colombia and South Korea as of late 2020, followed by Vietnam in June 2021. Mi-171A3 Newest modification based on the previous Mi-171A2 variant and the Mil Mi-38 transport helicopter, first revealed on 26 February 2019. The Mi-171A3 will be intended primarily for transport flights to offshore drilling platforms. Mi-171C Chinese built variant of Mi-171 by Sichuan Lantian Helicopter Company Limited, with two radars, one weather radar in the forward section, and another Doppler navigational radar under tail boom. Clam shell doors are replaced by a single ramp door. Mi-171E Mi-171 equipped with VK-2500-03 engines to operate in extreme temperature limits, from −58 to 50 Celsius. Mi-171M Modernized Mi-171 to reduce crew from 3 to 2. Mi-171S Mi-171 with western avionics such as AN/ARC-320 transceiver, GPS and standard NATO flight responder. Mi-171Sh Export version of the Ulan-Udes Mi-8AMTSh. It is the most advanced export version and can be armed with various armaments. In addition to transporting troops, the helicopter can also be used to attack enemy positions. Mi-171SH-HV and Mi-171SH-VN are more advanced versions equipped with electro-optical FLIR system and armed with anti-tank guided missiles. Czech Republic and Croatia have ordered these types in 2005 and 2007. Both Bangladesh Air Force and Bangladesh Army operates Mi-171Sh armed assault helicopter and for multirole operations. Two recent operators are Peru who ordered 6, all due for delivery in 2011, and Ghana which received 4 of the helicopters in January 2013. A new order from China in 2020. Mi-171ShP Export version of Mi-17Sh for Peruvian Army (Aviación del Ejército del Peru) who ordered 24 for US$528 million and the contract stipulates delivery of spare parts, ground support equipment, maintenance support, and the establishment of a Mi-17 maintenance facility in La Joya (Arequipa), for US$62.4 million Mi-171Sh2 Upgraded version of Mi-171Sh for Algerian Air Force with new avionics, engines and optronic ball, active and passive protection system "President-S", two rocket pods B8W20A, eight missiles 9M120 "Ataka". Mi-172 Civil passenger version manufactured in Kazan