Project 1331M / Parchim-class anti-submarine corvette is an East German-developed coastal ASW corvette family built by Peene-Werft and later operated by Soviet, Russian, and Indonesian navies. The class carried 57 mm and 30 mm gun mounts, RBU-6000 rocket launchers, torpedo tubes, and sonar for shallow-water anti-submarine patrols, and an Indonesian Parchim-class ship was documented in the 2019 North Natuna Sea collision incident with Vietnamese fisheries-enforcement vessels.
Indonesia's KRI Tjiptadi-381, identified by Antara as a TNI AL Parchim-class corvette, was conducting North Natuna Sea law-enforcement operations on April 27, 2019 when Vietnamese fisheries-enforcement vessels obstructed the arrest of a Vietnamese fishing boat and collided with the ship.
The Parchim family is easiest to read as three overlapping service stories: an East German coastal ASW design, a Soviet/Russian Project 1331M batch, and the Indonesian Kapitan Pattimura-class refit path.
| Service branch | Designation context | Sourced notes |
|---|---|---|
| East German origin | Project 133.1 / Parchim I | Peene-Werft built the original coastal ASW corvettes for the Volksmarine before German reunification and later Indonesian transfer. |
| Soviet and Russian service | Project 133.1M / Parchim II | RussianShips.info lists 12 Soviet Project 1331M ships and identifies the class as small anti-submarine ships with RBU-6000, torpedo, gun, and sonar equipment. |
| Indonesian service | Kapitan Pattimura-class | Indonesian Parchim-class ships continued as patrol and enforcement vessels; Antara identified KRI Tjiptadi-381 as a Parchim-class TNI AL corvette during the 2019 North Natuna Sea incident. |
Parchim naming separates the East German Project 133.1 / Parchim I boats from the modified Soviet Project 133.1M / Parchim II batch and the Indonesian Kapitan Pattimura-class service name for former East German hulls.
| Variant | Configuration | Designation notes |
|---|---|---|
| Project 133.1 / Parchim I | East German baseline class | Wikipedia and the existing class references describe the original East German coastal ASW corvette design built by Peene-Werft for the Volksmarine before reunification. Sources: Parchim-class corvette, Parchim (class) / Project 1331M Corvette Warship - Military Factory |
| Project 133.1M / Parchim II | Soviet/Russian batch | RussianShips.info lists the Soviet Project 1331M small anti-submarine ships completed at Peene-Werft, while Military Factory notes the Parchim II NATO designation for the Soviet/Russian batch. Sources: Small Anti-Submarine Ships - Project 1331M - RussianShips.info, Parchim (class) / Project 1331M Corvette Warship - Military Factory |
The class's close-range ASW fit centered on rocket depth-charge launchers and torpedo tubes rather than long-range anti-submarine missiles.
| Carried item | Item type | Carriage evidence |
|---|---|---|
 | Shipboard ASW rocket launcher | RussianShips.info lists Project 1331M ships with two RBU-6000 Smerch launchers, and Military Factory separately lists two RBU-6000 anti-submarine rocket launchers in the Parchim-class armament suite. Sources: Small Anti-Submarine Ships - Project 1331M - RussianShips.info, Parchim (class) / Project 1331M Corvette Warship - Military Factory |
MPK-192, one of the Soviet Project 1331M boats, was laid down at Peene-Werft in Wolgast.
Sources: Russian corvette Urengoy
MPK-192 was commissioned into the Baltic Fleet, showing the Soviet-built Project 1331M batch in active service.
Sources: Russian corvette Urengoy
After German reunification, former East German Parchim hulls were sold to the Indonesian Navy and later refitted for continued service.
Sources: Parchim-class corvette
Antara reported that KRI Tjiptadi-381, a TNI AL Parchim-class corvette, was conducting law-enforcement operations against a Vietnamese fishing vessel when Vietnamese fisheries-enforcement vessels obstructed the arrest and collided with the Indonesian ship.
Sources: Kapal perikanan Vietnam provokasi KRI Tjiptadi-381 di Natuna - Antara
