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Originally posted by Daedalus3
India has a mix of Type 636 and type 877EKM Kilos.
In terms of anti-acoustic construction, both are more or less the same.
What is the main differences between project 877EKM and 636 submarines ?
Platforms at these submarines of absolutely identical. They differ by the filling: 36 unit equipment were constructed for project 636, beginning at modernized sonar and ending with many converters, fans, main electric motor, diesel-altemator, motor of economic movement and many others elements. All just listed motors have smaller vibration, and consequently smaller noisiness, have the new depreciation, the high power, therefore the project submarine 636 has the maximal velocity 20 units and considerably smaller noisiness. Consequently, the project submarines 636 sees project submarines 877 D SOB on railway division several time as much of more than far.
Add 2 more Kilos (636) which were reportedly deleivered in 2005.