The Royal Navy has been trialling Iron Man-style jet packs it hopes can be used to swarm enemy ships.

They have been designed by Gravity Industries and use more than 1,000bhp of jet engine power to reach speeds of more than 85mph and can fly for more than 10 minutes.

The Salisbury-based firm’s founder and chief test pilot Richard Browning served in the British Royal Marines before becoming a jet pack mogul.

Footage has emerged of servicemen using the state-of-the-art tactical suits in scenes reminiscent of Robert Downey Jr’s Marvel character or the James Bond film Thunderball.

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Mr Browning flew his own 5-engine jet pack suit around the HMS Queen Elizabeth and his company released a video that showed its operators working with the Royal Marines to launch from rigid inflatable boats and land aboard the Royal Navy Batch 2 River-class offshore patrol ship HMS Tamar.