HMS Queen Elizabeth, is undergoing a major refit at the moment.
Refit?
Already?
The paint's only just dried! 
Significant maintenance is being carried out as is the norm with modern, highly sophisticated technical warships. There was also an issue with the coupling on one of its propellor shafts, which also affected her sister carrier HMS Prince of Wales in a different form. Both carriers have broken down in recent years, just as the French carrier did, and the massive USA Gerald Ford had propulsion issues and broke down!
In fact it had been decided that HMS Prince of Wales would replace QE on NATO exercises because of the mechanical issues. Now she appears to be heading for the Eastern Mediterranean.
The propulsion issues are intriguing, as it is now considered by some naval historians that this was the true reason for the sinking of HMS Hood in 1941. It is believed, with evidence given at an enquiry given by some RN engineers and from the three survivors, that a failing prop shaft broke free from her securing bearings due to severe corrosion, apparently also evident across the ship with her urgently requiring a major refit that, twice, had been postponed due to the start of WWII. The experts stated HMS Hood desperately needed this refit, as it was in a very poor engineering condition. It had been noted for some time that there was significant vibration throughout the ship, a clue that there was a prop issue. The heavy steaming, at full speed, to intercept the German battleship is thought to have aggravated the prop fault to the point of destruction.
The theory is that this prop shaft thrashed around and smashed though the bulk head of the aft magazine, igniting the contents and blasting the stern off from the rest of HMS Hood. So the theory goes that it was not the action by Bismark or Prinz Eugen, but this mechanical failure, that sank the pride of the RN. But the enquiry decided on the former German action that sank her, which probably suited their war propaganda / PR better! This can never be proved apparently because the wreck of HMS Hood is in pieces on the seabed, and no evidence to support the old claim is available. So the official conclusion still holds good.
This may be history, but I just wonder if this MAY be in the minds of the RN and are now very sensitive about any prop issues with these big ships. An interesting thought, maybe!!
