Sandhayak-class survey ship (1981) vs Type 920 hospital ship

ANaval support & landing craft

Sandhayak-class survey ship (1981)

Hydrographic survey ship

BNaval support & landing craft

Type 920 hospital ship

Hospital ship

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

Sandhayak-class survey ship (1981)Length

87.8 m

Length source ↗

Type 920 hospital shipfull

180 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Sandhayak-class survey ship (1981)larger figure on 0 of 1

None

Type 920 hospital shiplarger figure on 1 of 1

Speed+17%

Counts only measures both sources give with the same scope. A larger figure is not a better system.

Measured figures

Head to head

11 of 23 rows sourced on both sides

87.8m

180mfull

Length

All recorded figures & sources

87.8 m

Length

Single source

87.8 m (288 ft 1 in)^[source]

180 m

full

Single source

590.5 ft (180.0 m)(full)^[source]

12.8m

—

Beam

All recorded figures & sources

12.8 m

Beam

Single source

12.8 m (42 ft 0 in)^[source]

3.3mDraft

—

Draught

All recorded figures & sources

3.3 m

Draft

Single source

3.3 m (10 ft 10 in)^[source]

1,960tfull

25,760 tons (full)

Displacement

All recorded figures & sources

1,960 tonnes

full

Single source

1,929 long tons (1,960 t) full^[source]

25,760 tons (full)^[source]

18officers + 160 enlisted

Basic: 130 Full: 440

Complement

All recorded figures & sources

18 people

officers + 160 enlisted

Single source

18 officers + 160 enlisted^[source]

Basic: 130 Full: 440^[source]

30km/hMaximum; Speed

35km/hMaximum; Speed

Speed+17%

All recorded figures & sources

30 km/h

Maximum; Speed

Single source

16 knots (30 km/h; 18 mph)^[source]

35 km/h

Maximum; Speed

Single source

19 kn (35 km/h; 22 mph)^[source]

26,000kmat 10 kn (19 km/h; 12 mph)

19,000km

Range

All recorded figures & sources

26,000 km

at 10 kn (19 km/h; 12 mph)

Single source

11,000 km

at 14 knots (26 km/h; 16 mph)

Single source

6,000 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]

19,000 km

Range

Single source

10,000 nmi (19,000 km; 12,000 mi)^[source]

Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.

Configuration

Details

Sandhayak-class survey ship (1981) and Type 920 hospital ship configuration
Specification	Sandhayak-class survey ship (1981)	Type 920 hospital ship
Builders	Garden Reach Shipbuilders and Engineers Goa Shipyard, Ltd.^[source]	Guangzhou Shipyard International^[source]
Operators	India^[source]	People's Liberation Army Navy^[source]
Succeeded by	Makar class^[source]	—
Planned	8^[source]	—
Completed	8^[source]	3^[source]
Active	5^[source]	3^[source]
Retired	3^[source]	—
Type	Hydrographic survey ship^[source]	Hospital ship^[source]
Armament	1 × Bofors 40 mm gun^[source]	—
Aircraft carried	1 × HAL Chetak helicopter^[source]	—
Aviation facilities	Helipad^[source]	Hangar Helicopter pad^[source]
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	—
Country of origin	India^[source] India^[source] India^[source]Inventory Origin column; table 11, row 8, cell 7; revision 1376895978; retrieved 2026-10-02	—
Propulsion	two diesel engines^[source]Unspecified	—
In service	—	2008–present^[source]
Building	—	0^[source]

FORCETALLY

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Sandhayak-class survey ship (1981)

Type 920 hospital ship

Builders

Garden Reach Shipbuilders and Engineers Goa Shipyard, Ltd.^[source]

Guangzhou Shipyard International^[source]

Operators

India^[source]

People's Liberation Army Navy^[source]

Succeeded by

Makar class^[source]

—

Planned

8^[source]

—

Completed

Active

Retired

—

Type

Hydrographic survey ship^[source]

Hospital ship^[source]

Armament

1 × Bofors 40 mm gun^[source]

—

Aircraft carried

1 × HAL Chetak helicopter^[source]

—

Aviation facilities

Helipad^[source]

Hangar Helicopter pad^[source]

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

—

Country of origin

India^[source]

India^[source]Inventory Origin column; table 11, row 8, cell 7; revision 1376895978; retrieved 2026-10-02

—

Propulsion

two diesel engines^[source]Unspecified

—

In service

—

2008–present^[source]

Building

—

0^[source]