Russian Helicopters unveils Mi-171Sh-VN gunship
According to its official specifications, the Mi-171Sh-VN has a maximum take-off weight of 13,500 kg, a maximum payload of 4,000 kg, a ferry range of 1,065 km, a service ceiling of 6,000 m, a maximum speed of 280 km/h, and a cruising speed of 260 km/h. The aircraft has a crew of three and can transport up to 37 people.
http://www.janes.com/article/72436/russian-helicopters-unveils-mi-171sh-vn-gunship
Here is the 12,000 kg HIND for comparison.
According to its official specifications, the Mi-171Sh-VN has a maximum take-off weight of 13,500 kg, a maximum payload of 4,000 kg, a ferry range of 1,065 km, a service ceiling of 6,000 m, a maximum speed of 280 km/h, and a cruising speed of 260 km/h. The aircraft has a crew of three and can transport up to 37 people.
http://www.janes.com/article/72436/russian-helicopters-unveils-mi-171sh-vn-gunship

Here is the 12,000 kg HIND for comparison.
