World's Most Advanced Nuclear Submarine to Mimic Day and Night for Crew

World’s Most Advanced Nuclear Submarine to Mimic Day and Night for Crew

Written by Fabio Lucas Carvalho

Published on 03/04/2025 at 13:56

Updated on 03/04/2025 at 13:58

Foto: Reprodução

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Living for Weeks at the Bottom of the Sea Can Affect the Biological Clock of Anyone. So, the Most Advanced Nuclear Submarine Ever Built Will Have Technology Capable of Simulating the Day and Night Cycle

The United Kingdom has taken another step to renew its fleet of nuclear submarines. On March 20, a symbolic ceremony marked the official start of the construction of the HMS Dreadnought, considered the most advanced submarine in the world.

The event took place at the BAE Systems shipyard, nearly ten years after the first steel was cut for the vessel.

The HMS Dreadnought inaugurates a new class of British nuclear submarines. It will be one of the most powerful weapons ever built by the country. With a length of 153 meters, equivalent to 14 buses lined up, the submarine will be able to accommodate up to 130 crew members.

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The Technology of a Submerged Giant

The Dreadnought will be powered by a Rolls-Royce PWR3 nuclear reactor. It will also feature a turboelectric propulsion system and a pump-jet.

Being nuclear, it will be able to remain at sea for an unlimited time. The only limits will be the food supply and the crew’s endurance.

The vessel displaces 17,000 tons and will be armed with 12 Trident II D5 ballistic missiles. Each can carry up to 12 nuclear warheads, totaling 144 warheads on board.

Additionally, it will have four heavy Spearfish torpedoes and other weapons that were not disclosed.

But the Dreadnought is not only notable for its strength. It brings important innovations in comfort and onboard technology.

Innovations for Life Aboard

For the first time, a Royal Navy submarine will have separate accommodations for men and women. Bathrooms will also be divided, which is unprecedented on vessels of this type. This change marks a significant advancement in inclusion and crew well-being.

Another differentiator is the lighting. The Dreadnought will use an adaptable system that mimics the day and night cycle. This should help maintain the crew’s routine closer to life on land. The lighting will be adjusted in areas such as the infirmary, classrooms, and exercise spaces.

The vessel will also feature a control system inspired by aviation. Called Active Vehicle Control Management (AVCM), it will be responsible for regulating the course, depth, angle, and buoyancy of the submarine. Technical details of this system, however, have not been disclosed.

A Name with History

The HMS Dreadnought is the 12th British submarine to bear this name. It will be the first of a series of four vessels. The other three will be named HMS Valiant, HMS Warspite, and HMS King George VI.

The expectation is that the Dreadnought will enter service at the beginning of the next decade. It is anticipated to fulfill its missions for at least 30 years.

Until then, it will continue to symbolize the British effort to maintain a modern and efficient fleet in times of rapid technological changes and growing military demands.

World’s Most Advanced Nuclear Submarine to Mimic Day and Night for Crew

Living for Weeks at the Bottom of the Sea Can Affect the Biological Clock of Anyone. So, the Most Advanced Nuclear Submarine Ever Built Will Have Technology Capable of Simulating the Day and Night Cycle

The Technology of a Submerged Giant

Innovations for Life Aboard

A Name with History

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World’s Most Advanced Nuclear Submarine to Mimic Day and Night for Crew

Living for Weeks at the Bottom of the Sea Can Affect the Biological Clock of Anyone. So, the Most Advanced Nuclear Submarine Ever Built Will Have Technology Capable of Simulating the Day and Night Cycle

The Technology of a Submerged Giant

Innovations for Life Aboard

A Name with History

A village with 115 inhabitants wants new residents: it offers a house, a job, up to 44 thousand euros in benefits, almost free rent, an annual grant of 8 thousand euros for 3 years, and a 20 thousand euro incentive for businesses in the mountains of Italy.

Seven world powers including the US, China, and Russia are spending €22 billion on a reactor in the south of France that aims to confine plasma at 150 million degrees Celsius, ten times the temperature of the Sun’s core, using a magnetic field capable of lifting an entire aircraft carrier.

With a wingspan of 152 meters, 76 tires, and a capacity to carry 1,270 tons, the Boeing Pelican was the giant “flying ship” that promised to cross oceans close to the water on an invisible air cushion beneath its wings.

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