Engineering:Mornar-class patrol boat
| Class overview | |
|---|---|
| Builders: | Tito's Shipyard, Kraljevica, PR Croatia, FPR Yugoslavia |
| Operators: |
 Yugoslav Navy |
| Preceded by: | Kraljevica class |
| Succeeded by: | Type 132 |
| Built: |
1957–1959 (Mornar) 1964–1965 (Borac) |
| In commission: | 1959–1992 |
| Completed: | 2 |
| Retired: | 2 |
| General characteristics (weapons configuration as reported in 1989/90) | |
| Type: | Patrol boat |
| Displacement: |
Standard: 330 tonnes (320 long tons; 360 short tons) Full: 430 tonnes (420 long tons; 470 short tons) |
| Length: | 53.3 m (174 ft 10 in) |
| Beam: | 7 m (23 ft 0 in) |
| Draught: | 2 m (6 ft 7 in) |
| Installed power: | 3,250 hp (2,420 kW) |
| Propulsion: |
2 × shafts 4 × diesel engines |
| Speed: | 20 knots (37 km/h; 23 mph) |
| Range: |
3,000 nmi (5,600 km; 3,500 mi) at 12 knots (22 km/h; 14 mph) 2,000 nmi (3,700 km; 2,300 mi) at 15 knots (28 km/h; 17 mph) |
| Armament: |
|
The Mornar class consisted of two large patrol boats[lower-alpha 1] built for the Yugoslav Navy (Serbo-Croatian: Jugoslavenska ratna mornarica – JRM) by the Tito's Shipyard in Kraljevica during the late 1950s and early 1960s. The boats were based on the Udarnik (PBR-581), a French-built Le Fougueux-class submarine chaser acquired in 1956. Both boats had an uneventful career and were deleted in 1992.
Description and construction
The Mornar class consisted of just two boats: Mornar (PBR-551) which was laid down in 1957, launched in 1958 and commissioned on 10 September 1959, followed by Borac (PBR-552) which was laid down in 1964 and launched and commissioned in 1965.[1][lower-alpha 2] The class was based on the Udarnik (PBR-581), a French-built submarine chaser of the Le Fougueux-class, which was acquired by Yugoslavia in 1956.[2]
The boats measured 53.3 m (174 ft 10 in) in length with a 7 m (23 ft 0 in) beam and a draught of 2 m (6 ft 7 in). Standard displacement measured 330 tonnes (320 long tons; 360 short tons) while fully loaded they displaced 430 tonnes (420 long tons; 470 short tons). Propulsion consisted of four SEMT Pielstick PA17V diesel engines powering two shafts for a total of power output of 3,250 hp (2,420 kW), enabling a speed of 20 knots (37 km/h; 23 mph) and range of 3,000 nmi (5,600 km; 3,500 mi) at 12 knots (22 km/h; 14 mph) or 2,000 nmi (3,700 km; 2,300 mi) at 15 knots (28 km/h; 17 mph).[2][1]
Their original gun armament consisted of two 3"/50 caliber guns, two single-barrelled 40 mm (1.6 in) guns and two single-barrelled 20 mm (0.79 in) guns. Anti-submarine weapons consisted of two Mark 6 depth charge (DC) throwers and two Mark 9 DC racks. Both boats were modernized during 1970/73 at the "Sava Kovačević" Naval Repair Yard in Tivat; their 76 mm guns were removed and four five-barrelled Soviet-built RBU-1200 were installed along with a Tamir-11 sonar.[2]
Service history
The boats enjoyed a long, albeit uneventful, career in the Yugoslav Navy and both were deleted in 1992.[2]
Notes
- ↑ The Yugoslav Navy classified these boats as patrolni brod ( Patrol Ship), while the 1989/90 edition of Jane's Fighting Ships referred to them as corvettes.[1]
- ↑ There are certain discrepancies regarding the date of construction of Mornar (PBR-551) and Borac (PBR-552). According to (Sharpe 1989) the boats were completed in 1959 and 1965 respectively. The (Croatian Technical Encyclopedia {{{2}}}) lists Mornar as completed in 1957 and Borac in 1965, while the (List of Delivered Vessel {{{2}}}) by the Kraljevica Shipyard lists both as being completed in 1957.
Footnotes
- ↑ 1.0 1.1 1.2 Sharpe 1989, p. 799.
- ↑ 2.0 2.1 2.2 2.3 Gardiner 1995, p. 647.
References
- Gardiner, Robert (1995). Conway's All the World's Fighting Ships 1947–1995. Naval Institute Press. ISBN 978-0-85177-605-7.
- Mušterić, I.. "ophodni brod" (in Croatian). Miroslav Krleža Institute of Lexicography. https://tehnika.lzmk.hr/ophodni-brod/.
- Sharpe, Robert Richard, ed (1989). Jane's fighting ships, 1989-90.. Jane's Information Group. ISBN 978-0-71060-886-4.
- "Shipyard Kraljevica - List of Delivered Vessels 1946. - 2007." (in Croatian). Kraljevica Shipyard. http://www.brodkr.hr/Referentna_lista_Brodogradilišta_Kraljevica_06-08.pdf.
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