Top 5 AIP Submarines in the World

AIP means Air Independent Propulsion. This helps a diesel powered submarine to stay under water for weeks without surfacing to get air to feed it's engines.

Submarine classes are listed in alphabetical order

1. Archer Class of Singapore Navy and Södermanland Class of Swedish Navy
2. Lada Class or Improved Kilo of Russian Navy
3. Scorpene Class of Brazilian, Chilean and Malaysian Navies. Indian version of this class is known as Kalvari Class
4. Sōryū Class of Japanese Navy
5. Yuan class of Chinese Navy

Image Source - Google and Wikipedia

Sound Track - https://www.youtube.com/watch?v=mCW0c0tFYuw

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