by The Prince and Princess of Wales joked about the ‘wonderful British summer weather’ in an Instagram post
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Kate Middleton and Prince William capped off their lovely family on Friday with a group photo.
The Prince and Princess of Wales, both 41, took their three children for a fun-filled day at the Royal International Air Tattoo at Royal Air Force (RAF) Fairford in Gloucestershire, England. The royal family smiled in a group photo posted to Instagram, which showed Prince George, 9, and Prince Louis, 5, protected in their raincoats – and poking fun at the wet conditions!
“A family day out at the @airtattoo – in the beautiful UK summer weather Great to explore the C-17 and meet the @usairforce crew,” the caption read.
Princess Charlotte, 8, like her parents, did not wear a raincoat but pulled her hair back after wearing it before.
Related: Kate Middleton and Prince William take surprise trip to air show with George, Charlotte and Louis
The family saw the world’s largest military air show, which attracts more than 200,000 visitors each July. The event is a benefit for The Royal Air Force Charitable Trust, which supports the Air Force and encourages young people to take part in aviation.
The caption of the official Instagram post from the Prince and Princess of Wales continued: “Congratulations to the brilliant winners of the Road to RIAT competition for designing a sustainable aircraft for the future of the RAF. ”
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Another photo showed the kids having fun at the venue, with Prince George touching some equipment while his dad laughed behind him. The rest showed Kate meeting the event attendees, shaking hands and sparking conversation.
The Princess of Wales made contact with cadets and stopped at the Techno Zone during her visit. The Techno Zone aims to inspire young people to learn more about science, technology, engineering and math and to consider careers in engineering, aviation and aerospace.
She also met the winners of Road to RIAT, a year-long competition challenging students from 300 schools across the UK to design a sustainable aircraft for the future of the RAF.
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“The family were all looking forward to the trip,” a royal source told PEOPLE of the unannounced outing, which came as a school holiday treat for the Welsh children. The trio have recently completed classes at Lambrook School and are likely excited about summer break.
The family also has a special bond with the industry. Prince William flew for the RAF Search and Rescue Force at RAF Valley in Anglesey, Wales from 2010 to 2013 and serves as the Honorary Air Commander of RAF Coningsby and Princess Kate is the Honorary Air Commodore of the Air Cadets.
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William and Kate’s surprise visit to the Royal International Air Tattoo marks their first time attending as a family of five. The couple last went to the air show with Prince George, then 2 ½, in 2016.
The toddler wore adorable bright blue sound-muffling earmuffs, pointed at planes in the sky, waved to visitors and seemed especially fascinated by a helicopter’s tail rotor.
“I imagine his father told him about helicopters, so he knew what it was called and kept saying ‘tail rotor’. It was good to see his technical knowledge! Training starts early!” Flight Lieutenant Jim Hobkirk told PEOPLE at the time.
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