Gosport Tank & Silent Submarines

Posted: 4th January 2026

Stretching 885ft in length and containing enough water to fill seven

Olympic-sized swimming pools, a vast water tank at a mysterious research

centre is helping to give the Royal Navy a fighting edge over Russia. The

Telegraph has been granted rare and exclusive access to the facility in

Hampshire after it opened its doors to the press for the first time in more

than 20 years. Operated by QinetiQ, the defence firm, at its site in

Haslar, Gosport, the hub has been behind some of the biggest breakthroughs

in naval hull and propeller designs in the past 80 years. One senior naval

source told The Telegraph: “All the grown-up maritime nations around the

world make damn sure the signatures of their

 assets are so quiet

it’s unlikely anyone would detect it… we are incredibly good at this.

“We have only achieved that position because of our fantastic scientists,

who are forever researching how to make our signatures impossible to

detect. “However, some of our adversaries are becoming more competent at

this, having previously been sitting ducks.”

 

 Telegraph 1st Jan 2026

 

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