An AIP allows a conventional diesel-electric submarine like the Kalvari-class to remain submerged for 8-10 days without the ...

How quickly can a submarine can move under the surface? These are the fastest the world militaries have to offer.

The underwater endurance of Indian Navy’s Kalvari-class submarines is set to increase as the fleet of six submarines will be ...

Submarines can also use underwater optical communication to transmit and receive data while submerged. This technology includes light-emitting diodes (LEDs) and laser diodes (LDs), which can be ...

Former US defence secretary Leon Panetta discusses how Australia having a submarine fleet is “critical” to US security.

Photo/CCTV News] In 2014, Zhang saw a person build a submarine through a TV program, this inspired him to build one by ...

The Royal Navy has been left without any submarines at sea to defend its surface fleet leaving a veteran to warn that "the ...

The Albanese government will put a Labor tinge on AUKUS and link its AUKUS rhetoric to initiatives such as Future Made in ...

Fleet of Trident subs all possess a chilling letter from the Prime Minister detailing what the crew should do if the ...

PM writes four identical letters that are handed to the commander of each of the UK's Vanguard-class submarines ...

Foreign News: Submerged Submarines. 1 minute read. TIME. February 14, 1938 12:00 AM GMT-5. L ast week two British freighters were sunk by “pirate craft” in Spanish waters.