Maiden sea trial of Kal­vari first Scor­pene class sub­ma­rine


Kal­vari, the first of the Scor­pene class sub­marines, built at the Mazagon Dock Ltd (MDL), Mum­bai, went to sea for the first time on May 1. The sub­ma­rine sailed out at about 1,000 hours un­der her own propul­sion for the first sea trial, off the Mum­bai coast and dur­ing the sor­tie, com­pleted a num­ber of pre­lim­i­nary tests on the propul­sion sys­tem, aux­il­iary equip­ment and sys­tems, nav­i­ga­tion aids, com­mu­ni­ca­tion equip­ment and steer­ing gear. Var­i­ous stan­dard op­er­at­ing pro­ce­dures were also val­i­dated for this new class of sub­marines. The sub­ma­rine then re­turned to the har­bour in the even­ing.

This im­por­tant mile­stone was achieved by MDL af­ter over­com­ing a num­ber of chal­lenges faced since launch­ing of the sub­ma­rine in Oc­to­ber last year. Dur­ing the next few months, the sub­ma­rine will un­dergo a bar­rage of sea tri­als, in­clud­ing sur­face tri­als, div­ing tri­als, weapon tri­als, noise tri­als, etc., which would test the sub­ma­rine to the ex­tremes of its in­tended op­erat- ing en­velop. There­after she would be com­mis­sioned into the In­dian Navy as INS Kal­vari later this year. Com­mis­sion­ing of Kal­vari will be a reaf­fir­ma­tion of In­dia’s ca­pa­bil­ity to build sub­marines and a ma­jor boost for the ‘Make in In­dia’ pro­gramme of the govern­ment.

In April last year, the De­fence Min­is­ter had vis­ited MDL and directed that all out ef­fort be made to com­plete the pro­ject in time. Ac­cord­ingly, the teams from MDL, In­dian Navy and DCNS have been work­ing round the clock. To­day, with the first sea sor­tie of Kal­vari, MDL has achieved a ma­jor pro­ject mile­stone.

The on­go­ing pro­ject for the con­struc­tion of six Scor­pene class sub­marines has DCNS of France as col­lab­o­ra­tor and in­cludes trans­fer of tech­nol­ogy (ToT) with MDL as the ‘Builder’. Lev­er­ag­ing on the ex­pe­ri­ence and the ToT of the Scor­pene pro­ject, and with the en­hanced and up­graded in­fra­struc­ture, MDL is ready for un­der­tak­ing fu­ture sub­ma­rine and ship­build­ing projects in or­der to meet the grow­ing re­quire­ments of na­tional se­cu­rity.

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