The equipment of the floating base was capable of providing navigational and emergency repair of the hull, mechanisms and weapons and storage of 42 533-mm torpedoes in a special room.

[3] The defensive armaments of the ships consisted of four single-barreled 100-mm artillery mounts B-34USMA and four 57-mm twin installations ZIF-31 with the Ryf control radar, the sonar station was not provided.

After modernization, on two ships, instead of two aft 100-mm installations, a take-off and landing pad was equipped for basing one Ka-25 helicopter.

[3] Nikolay Kartashov was built at Black Sea Shipyard in Mykolaiv and was launched on 25 June 1957 and commissioned on 1 July 1960.

[2] She was acquired along with 12 Whiskey-class submarine as part of the First Nasution Mission, which aims to improve Indonesian Armed Forces capabilities as preparation for Operation Trikora.

[5] Ratulangi didn't partake in the operation, as she arrived in Indonesia in July 1962, shortly before the West Irian dispute was concluded in New York Agreement which was signed on 15 August 1962.

On 7 December at 04:30 UTC+8, the landing forces disembarked from Teluk Bone, covered with naval gunfire from Martadinata.