RAF Anglesey colleagues congratulate William and Kate
23 July 2013 Last updated at 06:00 BST
RAF crewmates of Prince William have sent their congratulations to him and the Duchess of Cambridge after the birth of their son.
The baby was delivered at 16:24 BST at St Mary's Hospital in Paddington, west London, weighing 8lb 6oz.
The duke is based at RAF Valley on Anglesey, north Wales, where he and his wife share a cottage.
Flt Lt William Wales - who, as monarch, will one day be head of the armed forces - has spent recent years flying rescue missions, and qualified as a helicopter captain in 2012.
Here is what his colleagues had to say to him.