The crew of the Mi-28NM reconnaissance and attack helicopter ("Night Hunter", produced by Rostvertol) hit enemy fortifications and equipment with S-13OFS1 unguided air-to-surface missiles (NAR). This was reported by military expert Evgeny Damantsev. He also spoke about the features of missiles of this type.
According to Damantsev, the helicopter launched an S-13OFS1 unguided rocket with a high-explosive fragmentation warhead weighing 38 kg at a distance of more than 7500 m. The fire was conducted in a pitching mode (an aviation term that means turning an aircraft flying with its nose raised around the transverse axis).
The initial speed of these NURS reaches 600+ m/s, while the advanced ballistic computer provides a combat accuracy of 35 m on the side and about 250 - 300 m in range at the maximum distance.
About the S-13 «Tulumbas» rocket
This is a Soviet and Russian unguided air-to-surface missile. It is designed to destroy aircraft even in reinforced concrete shelters, equipment in open areas. It has a caliber of 122 mm.
Read more on the topic:
Army Recognition: Russia can produce up to 25 RS-26 Rubezh missiles per year, including Oresnik
Following nuclear weapons: Putin spoke about the deployment of Oresnik in Belarus
