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Most submarines now have a single nuclear reactor. Some smaller, coastal submarines have a single diesel.

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What were the first two navy submarines with diesel engines?

The first two navy submarines equipped with diesel engines were the German U-Boat U-1, commissioned in 1906, and the British submarine HMS A1, launched in 1902. These submarines marked a significant advancement in naval technology, transitioning from earlier steam-powered designs to more efficient diesel engines, which allowed for greater range and operational capabilities. The use of diesel engines became a standard in submarine design for many years thereafter.


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Which features differentiate a nuclear-powered submarine from a conventional submarine?

A nuclear-powered submarine is different from a conventional submarine because it is powered by a nuclear reactor instead of diesel engines or batteries. This allows it to stay submerged for longer periods of time and travel at faster speeds. Additionally, nuclear-powered submarines do not need to surface as frequently for refueling, giving them greater endurance and operational range.


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