SS-750 with its submersible in the Strait of Baltiysk | |
| Class overview | |
|---|---|
| Name | Kashtan class |
| Builders | Neptun Werft, Rostock, East Germany |
| Operators |
|
| Completed | 8 |
| General characteristics | |
| Type | Salvage vessel/ Submersible support |
| Displacement |
|
| Length | 97.83 m (321 ft 0 in) |
| Beam | 18.20 m (59 ft 9 in) |
| Draught | 5.70 m (18 ft 8 in) |
| Propulsion | 2 × 1,500 hp (1,100 kW) diesel-electric motors, 2 fixed pitch propellers, 1 bow thruster, 5 × 775 kW diesel generators |
| Speed | 13.5 knots (25.0 km/h; 15.5 mph) |
| Range | 2,000 nautical miles (3,700 km; 2,300 mi) at 11 kn (20 km/h; 13 mph) |
| Complement | 47 |
The Project 141, (NATO reporting name Kashtan class) is a class of salvage vessel/submersible support built at Rostock's Neptun Werft in East Germany for the Soviet Navy.
In total, eight ships of this type were commissioned from 1988 to 1990. The ships became part of the Russian Navy after the dissolution of the Soviet Union. The stern has a crane capable of lifting 100 tons with which a Priz-class deep-submergence rescue vehicle (DSRV) can be launched and recovered.

In June 2014 it was reported that SS-750 had participated in sea trials in the Baltic Sea of a Bester-1 submersible.
On 6 September 2022 Russia's Ministry of Defence informed that SS-750 had participated in sea trials in the Baltic Sea of two new, improved Kilo-class submarines and on 6 October there was again news of SS-750 having participated in sea trials in the Baltic Sea, this time with a single submarine.
In April 2023 the Danish Defence Command confirmed that on 22 September 2022 SS-750 and the Priz-class submersible AS-26 that it can launch were among six Russian Navy ships operating in the area where four days later the 2022 Nord Stream pipeline sabotage occurred.
These are the eight Kashtan-class ships:
| Name | Yard number | Launched | Commissioned | Fleet | New name | Status |
|---|---|---|---|---|---|---|
| KIL-926 | 141/1465 | 1986-11-29 | 1988-06-27 | Baltic | Alexandr Pushkin (from 1999-05-27) | Active as of 2014[update] |
| KIL-927 | 142/1468 | 1987-10-06 | 1988-11-23 | Pacific | Active as of 2021[update] | |
| KIL-143 | 143/1469 | 1988-01-20 | 1989-02-28 | Northern | Active as of 2006[update] | |
| KIL-158 | 144/1470 | 1988-04-29 | 1989-06-30 | Black Sea (Baltic before 1989-11-08) | Active as of 2020[update] | |
| KIL-164 | 145/1471 | 1988-02-09 | 1989-10-20 | Northern | Active as of 2016[update] | |
| KIL-498 | 146/1476 | 1988-12-20 | 1990-02-28 | Pacific | Active as of 2019[update] | |
| KIL-140 | 147/1477 | 1989-06-16 | 1990-06-30 | Baltic | SS-750 (from September 1995) | Active as of 2022[update] |
| KIL-168 | 148/1478 | 1989-09-30 | 1990-10-05 | Pacific (Black Sea before) | Active as of 2016[update] |