Indian Naval Ship Investigator
KnowYourNavy Indian Naval Ship Investigator, a hydrographic survey ship, was commissioned into the Indian Navy on 11 January 1990. The ship has a displacement of 1,900 tonnes, a length of 90 meters and a beam of 13 meters. She is manned by a crew of 16 officers and 200 sailors.
The ship is fitted with state-of-the-art survey equipment including multi-beam and single beam echo sounders, side scan sonar and modern survey software suites. She carries four nine meter survey motor boats and one integral Chetak helicopter in support of survey operations. The primary role of the ship is hydrographic survey operations, and she can also undertake coastal and offshore patrol, coastal security,
HADR and anti-piracy operations and can also operate as a hospital ship. The meaning of the name ‘Investigator’ is one who examines and investigates. The ship’s crest depicts the world map in a Mercator projection, highlighting the projection type commonly used on charts, which are prepared by the Hydrographic Department.
Six ships have carried the name ‘Investigator’, each varying greatly in type and capability. The first ‘Investigator’, a 450-tonne sailing vessel was paid off in 1828. The second ‘Investigator’, a 580-tonne wooden paddle steamer was built at the Mumbai Dockyard in 1881.
The third ship to bear this name was a single screw steel ship commissioned in 1907, which was employed for survey duties until 1932 when she was replaced by the fourth ‘Investigator’, which was originally a cable-laying ship called ‘Patrick Stewart’.
In 1950 a River class frigate, ‘HMIS Kukri’, was outfitted and commissioned as the fifth ‘Investigator’, which was the cradle of learning for many illustrious Hydrographers. The present ‘Investigator’, the fourth of the ‘Sandhayak’ class survey ships, is an indigenously designed vessel built at Garden Reach Ship Builders and Engineers Ltd, Kolkata.