how many aircraft carriers does it have?
UNANSWERABLE
is "hms nairana" a battleship? It was a passenger ferry that was requisitioned by the Royal Navy (RN) as a seaplane carrier. where is the navy based? United Kingdom
wiki:25596182
Royal Navy [SEP] Aircraft carriers
The Royal Navy has two s, currently undertaking sea and aircraft trials which are both due to enter naval service within the next few years. Each carrier cost £3 billion and displaces . The first, commenced flight trials in 2018. Both are intended to operate the STOVL variant of the F-35 Lightning II. "Queen Elizabeth" began sea trials in June 2017, was commissioned later that year, and will enter service in 2020, while the second, began sea trials on 22 September 2019, was commissioned in December 2019 and is due to enter service in 2023.