The Princess of Wales was given quite the shock when a lifejacket she was wearing suddenly inflated during a visit to the Royal Naval Air Station (RNAS) Yeovilton in Somerset on Monday.
Kate's visit comes just weeks after the King announced her appointment as Commodore-in-Chief of the Fleet Air Arm (FAA).
King Charles famously went to the air station for helicopter flying training in 1974.
During her public outing, she was shown around the air station where she spent time in the traffic control tower to meet staff and speak to an airborne Wildcat helicopter crew.
As her first port of call, the Princess conducted training exercises in a hangar with survival equipment technicians, who allow aircrew to operate safely. And there was a lighthearted moment as Kate burst into fits of giggles as she inflated a lifejacket.
Louise Evans-Hughes, a leading survival equipment technician, later said of the moment: “I told the princess there might be a bit of a bang because sometimes when the Velcro rips open there is a bit of a noise.
“I think that was why she was a bit apprehensive to pull it. As soon as she pulled it, it inflated.
“I gave the princess the option whether she wanted to put it on or whether one of my colleagues would put it on.
“I didn’t know if she would or not, but it was really nice that she got hands-on and got really engaged in what we do and making the kit work.”
Describing the royal's reaction, Louise added: "I see it a lot when we train the air crew pilots so it’s something that I see all the time so I knew what was going to happen and it was quite nice to watch her face.
"I think afterwards she said it was quite snug and didn’t realise how big it was going to go and I quickly let some air out so she wouldn’t be uncomfortable."
The 32-year-old servicewoman, who is originally from Bath, said Kate is the first member of the royal family she has met.
"The Princess was really engaged, really excited and asking loads of questions, which is quite nice," she said.
"[I] Think, for me, every day that you become a bit immune to what you do. It’s nice to be remembered and some of the things that you’re doing.”
She said she did not have any nerves until seconds before she was introduced to Kate.
"It sort of just hit me. I was thinking about saying 'Good morning, Ma'am' but she was just so engaging and lovely, as soon as she started talking to me I was really put at ease."
Kate later sat inside a Merlin Mk4 helicopter, deployed by the Royal Marines globally to provide disaster relief, as well as a Merlin MK2, which is used to hunt for submarines.
She also tried her hand at flying a Wildcat MK2 in a simulator, which allows aircrew to practice flying over land or on to ships.
The maritime attack helicopter is designed to operate from the frigates and destroyers of the Royal Navy.
Danielle Beckinsale, 20, an engineer in the 845 squadron at the base who helps maintain and service the aircraft, joined Kate in the cockpit of the aircraft and explained her work.
She said: "We’re not on the frontline, but she was intrigued as to what us engineers do to keep the squadron up and keep the Merlin serviceable.
"It felt like a privilege to be selected to meet her. I actually got asked to meet her because I was the only female engineer [in the squadron] and she actually wanted to meet a female engineer."
During her engagement, Kate also made a sweet reference to her children, Prince George, ten, Princess Charlotte, eight, and Prince Louis, five, suggesting to staff they would have loved to come and see the airbase with her.
She told the air traffic controllers that her children were "excited" about her visit to the air base and told her: "I can't believe you’re going there!"
More than 4,000 personnel are employed on the site, which is home to a number of frontline squadrons and training units.
Captain Duncan Thomas, RNAS Yeovilton’s commanding officer, said afterwards: "I am delighted and privileged to have welcomed the Princess of Wales to the Royal Naval Air Station Yeovilton, at the start of what I am sure will be a long and rewarding relationship in her capacity as Commodore-in-Chief of the Fleet Air Arm.
"We’ve all been hugely excited by this opportunity and I am delighted that Her Royal Highness will be able to support and inspire our exceptionally talented sailors, air crew and wider workforce family for years to come."
Meanwhile, the Prince of Wales will begin his two-day visit to New York on Monday, 18 September 2023, where he will attend the Earthshot Prize Innovation Summit.
Prince William will address delegates alongside other speakers including former New York mayor and business news mogul Mike Bloomberg, a global adviser to Earthshot Prize winners, Dame Jacinda Ardern, Earthshot trustee former New Zealand prime minister, and Bill Gates, the co-founder of Microsoft.
The future King is set to travel to Singapore for the third Earthshot Prize Awards ceremony on 7 November. However, The Telegraph has reported that the Princess will not join her husband on the trip.
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