Submarines are vital assets which can conduct a vast array of missions including anti-surface and Anti-Submarine Warfare, Intelligence gathering, Mine laying, Land attacks, and Special forces/Clandestine operations. The Stealth characteristics of a Submarine and its ability to make use of the underwater environment to its advantage make it a strategic asset and a game changer in the maritime domain.
Conventional Submarines
A Conventional Submarine is propelled by diesel-electric engines on the surface and by electric motors powered by batteries whilst submerged. These batteries are charged by diesel generators. The air intake for the diesel generator is facilitated by the snorkel which exposes the snort mast when propelling close to the sea surface.
Conventional submarines are restricted in submerged endurance due to their battery capacity. Over the years, the improved efficiency of diesel engines, better batteries and power-conserving motors have attempted to limit the constraints and improved the indiscretion rate which is the total time the submarine is exposed vis-a-vis the total time it is dived in a 24-hour cycle.
The challenge to overcome limitations on endurance, speed and concealment has constantly driven innovation in submarine propulsion technologies to design a system which would not require external air to run the diesel generator which led to the development of Air Independent Propulsion (AIP). The replacement of traditional propellers with pump jet systems improved maneuverability and stealth characteristics.
Improvements in Conventional Submarine Technology
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Lessons From Gaza And Lebanon
The ongoing war, loosely called the Gaza War, is actually being fought in two different loosely connected segments; against the Hamas with a spill off in the West Bank and East Jerusalem areas against Palestinian factions and against the Hezbollah in Lebanon with a spill off in Syria. Treating Israel-Hamas War and the Lebanon War as separate entities, RAJ MEHTA explains the lessons from these wars
POSITIVE STEPS TOWARDS POTENTIAL REGIONAL COOPERATION
It has been a whirlwind of diplomatic activity for India recently. India participated in both the Shanghai Cooperation Organisation SCO) summit that took place in Islamabad on October 15-16, and the 16th BRICS Summit was held in Kazan, Russia, from October 2224, 2024. These back-to-back summits within a short span of time underscore India's active role in shaping regional and global diplomacy, balancing national interests with multilateral cooperation
THE EAGLE'S EYE TEJAS MK-II RADAR PIERCES VEIL OF THE SKY
The Tejas Mk-II, featuring DRDO's GaN-based Uttam AESA radar, marks a major leap in India's defence, enhancing range, precision, and multi-target tracking capabilities, highlights GIRISH LINGANNA
PRIME MOVER
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TRANSFORMATIONAL INDUCTION
The GA-ASI MQ-9B will dramatically enhance the ISR and precision strike capabilities of the Indian armed forces
TACAN PRINCIPLES OF OPERATION
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AIRBORNE TRACKER
Indigenous efforts towards AEW&C and AWACS platforms need to be stepped up even as international programmes extend the current state-of-the-art for such aircraft, highlights
AFFORDABLE LETHALITY THE INDIAN DILEMMA
India's defence dilemma is now being complicated by the lessons learnt in the Ukraine and Gaza wars because these conflicts are reshaping the way wars are fought in the modern world.
FROM IMPORTS TO SELF-RELIANCE IN ARMS
Self-reliance in Defence Production needs new ideas, new definitions _es and an appropriate methodology, argues AMIT COWSHISH
"THE INDIAN AIR FORCE IS WORKING HARD TO REMAIN A CREDIBLE AIR FORCE"
Commissioned into the fighter stream of the Indian Air Force on December 21, 1984, Air Chief Marshal AMAR PREET SINGH PVSM AVSM took over as the 28th Air Chief of India on September 30, 2024.
