Far from thesea, in the foothills of the Himalayas, a critical naval system has found a new lease of life.For the first time, periscopes on the Navy’s attack submarines have been repaired and refurbished indigenously, with the Central Scientific Instruments Organisation (CSIO) in Chandigarh executing the project.
Periscopes are complex electro-optical devices that allow the crew to visually scan the surrounding sea surface while the submarine remains submerged just below the surface, thereby reducing the risk of detection. Submarines are equipped with different types of periscopes, which can be raised or retracted as per requirement.
“The project took us about one-and-a half years to carry out and the refurbished periscope is, at present, undergoing trials onboard the submarine,” CSIO Director Prof SA Ramakrishna said. “The work involved studying and analysing a large number of optical elements and associated components and then developing the methodology and technology to meet the Navy’s requirement,” he added.
The Navy’s 16 operational attack submarines are all of foreign origin. It has been trying to overhaul and refurbish periscopes within the country for the past several years and had approached CSIO for the same. CSIO has been involved in several defence related projects, including those in the field of optics.
Prof Ramakrishna said that the project has enabled CSIO to handle large optical systems and the technology and expertise so developed will not only be utilised for repairing and overhauling such systems in the existing fleet, but can also be applied in the Navy’s ongoing indigenous submarine construction programme.