"Russian Helicopters has delivered a batch of four Mi-171Sh helicopters to the Angolan Defense Ministry, in the framework of a long partnership," the company's press service told RIA Novosti.
The delivery of the aircraft, produced by the Ulan-Ude Aviation Plant (UUAZ) was conducted in addition to four helicopters delivered in 2015, according to the press service.
"The Mi-171Sh helicopters were tested in different weather conditions and various geographical locations, where they proved to be reliable and undemanding machines capable of fulfilling set tasks. They operate reliably in the harshest conditions," the press service said.
According to the press service, representatives of the Angolan Defense Ministry have commended the helicopters and noted their preparedness for climate conditions of Angola.
The helicopters delivered to Angola have been fitted with modern flight control and navigation equipment, including a satellite navigation system and weather radars with a multi-function display, which optimize the safety of the flight, according to Russian Helicopters.
"Installation of additional internal fuel tanks allowed to increase the flight range up to 1,065 kilometers [over 660 miles]. Moreover, machines are equipped with a rescue hoist with the lifting capacity of 300 kilograms [660 pounds], folding seats, 12 sanitary stretchers, as well as external slings, which allow to transport bulky loads weighing up to 4 tonnes," the press service said.
Russia’s state arms exporter Rosoboronexport signed a contract on the supply of arms and military equipment worth $1 billion with the Angolan side in 2013. The agreement included deliveries of spare parts for the Soviet-made weaponry, light weapons, ammunition, tanks, artillery and multi-purpose helicopters to Angola.