OVERVIEW: The TST‑60U is an 82 mm infrared (IR) flare munition introduced in 1971. It is fired from the Russian PK‑16 dispenser system to deploy thermal decoy payloads against infrared-guided threats.

DETAILS: The TST‑60U was developed by the Institute for Applied Physics in Novosibirsk as one of two specialty rounds compatible with the PK‑16 82 mm deck-mounted launcher; the other is the TSP‑60U radar chaff round. Measuring approximately 653 mm in length and weighing about 8.15 kg, it carries a 0.53 kg infrared flare payload. Once launched, it reaches distances between 500 m and 1,800 m before deploying its heat-emitting payload to form a thermal signature. The PK‑16 and TST‑60U combination has been employed on multiple Russian surface combatants, including Grisha, Gepard, Tarantul, Krivak, and Neustrashimy-class ships.

FONCTION:
Launched from an 82 mm PK‑16 deck-mounted dispenser upon detection of an IR-guided missile.
Travels to a preset range before ejecting the IR flare payload.
Generates a false thermal signature to seduce or divert heat-seeking predators away from the vessel.

SOURCE:
German Wikipedia (“PK‑16” article, includes TSP‑60U and TST‑60U data) ; Rostec/Institute for Applied Physics – PK‑16 system manufacturer data.