Semyon Dezhnev (1971 icebreaker)
| History | |
|---|---|
 →  Soviet Union → Russia | |
| Name | Semyon Dezhnev (Семён Дежнёв) |
| Namesake | Semyon Dezhnev |
| Owner |
|
| Port of registry |
|
| Builder | USSR ) |
| Yard number | 782 |
| Laid down | 30 March 1971 |
| Launched | 31 August 1971 |
| Completed | 28 December 1971 |
| In service | 1971–present |
| Identification | IMO number: 7119446[1] |
| Status | In service |
| General characteristics (as built)[3] | |
| Class and type | Dobrynya Nikitich-class icebreaker |
| Displacement | 2,935 t (2,889 long tons) |
| Length | 67.7 m (222 ft) |
| Beam | 18 m (59 ft) |
| Draught | 5.35 m (17.6 ft) |
| Depth | 8.3 m (27.2 ft)[4] |
| Installed power | 3 × 13D100 (3 × 1,800 hp) |
| Propulsion | Diesel-electric ; three shafts (2 × 2,400 hp + 1,600 hp) |
| Speed | 15 knots (28 km/h; 17 mph) |
| Range | 5,700 nautical miles (10,600 km; 6,600 mi) at 13 knots (24 km/h; 15 mph) |
| Endurance | 17 days |
| Complement | 42 |
| General characteristics (after refit)[5] | |
| Installed power | 3 × Wärtsilä 6L26A (3 × 1,500 kW) |
| Notes | Otherwise same as built |
Semyon Dezhnev (Russian: Семён Дежнёв) is a Russian
Description
In the mid-1950s, the Soviet Union began developing a new diesel-electric icebreaker design based on the 1942-built steam-powered icebreaker
Project 97A icebreakers were 67.7 metres (222 ft) long overall and had a beam of 18 metres (59 ft). Fully laden, the vessels drew 5.35 metres (17.6 ft) of water and had a displacement of 2,935 tonnes (2,889 long tons). Their three 1,800-horsepower (1,300 kW) 10-cylinder 13D100 two-stroke opposed-piston diesel engines were coupled to generators that powered electric propulsion motors driving two propellers in the stern and a third one in the bow. Project 97A icebreakers were capable of breaking 70 to 75 centimetres (28 to 30 in) thick snow-covered ice at very slow but continuous speed.[3]
History
The last of twelve Project 97A icebreakers was
Following the
As of 2023[update], Semyon Dezhnev is one of the two Project 97A icebreakers still in service.[2]
References
- Ministry of Ecology, Sustainable Development and Energy. Retrieved 23 May 2023.
- ^ a b c "Semyon Dezhnev (7119446)". Sea-web. S&P Global. Retrieved 23 May 2023.
- ^ a b c d Kuznetsov, Nikita Anatolyevich (2009), "От "Добрыни Никитича" до "Отто Шмидта": Ледоколы проекта 97 и их модификации", Морская коллекция (in Russian), no. 8 (119), Moscow: Моделист-конструктор
- ^ "Дизель-электрические ледоколы, проект 97А". CDB Iceberg. Retrieved 14 May 2023.
- ^ a b "Semyon Dezhnev (712714)". Register of ships. Russian Maritime Register of Shipping. Retrieved 23 May 2023.
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