 
 <prompt> Wetin dey more, aircraft or Invincible-class carriers? Based on di question wey dey above, write small tori wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: The Royal Navy dey build two new big STOVL aircraft carriers wey dem dey call Queen Elizabeth class, to replace the three wey don retire wey be Invincible-class carriers. The ships dem be HMS Queen Elizabeth and HMS Prince of Wales. Dem go fit operate up to 40 aircraft during peace time with a group of up to 50, and dem go get weight of 70,600 tonnes. HMS Queen Elizabeth go start work for 2017 followed by Prince of Wales for 2020. Dem go start to dey work for 2020. Dem main aircraft dem go use na F-35B Lightning IIs, and dem ship's company go dey around 680 people but go rise to about 1600 when the air group dey on board. The two ships go be the biggest warships wey Royal Navy don ever build. 