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At a glance
Dredger 1larger figure on 0 of 2
Sandhayak-class survey ship (1981)larger figure on 2 of 2
Measured figures
Length
Single source44.15 m (144 ft 10 in)[source]
Length
Single sourceConfiguration
| Specification | Dredger 1 | Sandhayak-class survey ship (1981) |
|---|---|---|
| Power | 2 × Cummins KTA38-M 1000 Hp Engines[source] | — |
| Builders | Tebma Shipyard Limited[source] | Garden Reach Shipbuilders and Engineers Goa Shipyard, Ltd.[source] |
| Operators | India[source] | India[source] |
| In commission | 17 May 2015[source] | — |
| Type | Grab-hopper Dredger ship |
Counts only measures both sources give with the same scope. A larger figure is not a better system.
87.8 m (288 ft 1 in)[source]
full
Single source1,929 long tons (1,960 t) full[source]
officers + 160 enlisted
Single source18 officers + 160 enlisted[source]
Maximum; Speed
Single source16 knots (30 km/h; 18 mph)[source]
at 10 kn (19 km/h; 12 mph)
Single sourceat 14 knots (26 km/h; 16 mph)
Single source6,000 nmi (11,000 km; 6,900 mi) at 14 knots (26 km/h; 16 mph) 14,000 nmi (26,000 km; 16,000 mi) at 10 kn (19 km/h; 12 mph)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Hydrographic survey ship[source] |
| Capacity | 300 cubic metres dredged material[source] | — |
|---|
| Succeeded by | — | Makar class[source] |
|---|
| Planned | — |
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| Completed | — |
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| Active | — |
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| Retired | — |
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| Armament | — | 1 × Bofors 40 mm gun[source] |
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| Aircraft carried | — | 1 × HAL Chetak helicopter[source] |
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| Aviation facilities | — | Helipad[source] |
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| Source measurement | — | The Sandhayak -class survey ships are a series of eight vessels built by Garden Reach Shipbuilders and Engineers (GRSE), Kolkata and Goa Shipyard , Vasco for the Indian Navy . While Sandhayak , Investigator , Nirdeshak , Nirupak were built in GRSE; Sarveshak , Jamuna , Darshak , Sutlej were built by Goa Shipyard. The vessels equipped with four survey motorboats , two small boats and are powered by two diesel engines with a top speed of 16 knots (30 km/h; 18 mph). They have a helicopter deck and are also armed with a Bofors 40 mm/60 gun mount for self-defense.[source]Sandhayak-class survey ship (1981) · Lead; only the objects and conditions stated in this passage The third ship in the class Nirupak was decommissioned after 38 years of service on 29 January 2024 in Visakhapatnam .[source]Sandhayak-class survey ship (1981) · Service history; only the objects and conditions stated in this passage |
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| Country of origin | — | India[source] India[source] India[source]Inventory Origin column; table 11, row 8, cell 7; revision 1376895978; retrieved 2026-10-02 |
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| Propulsion | — | two diesel engines[source]Unspecified |
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