People in Old Catton were left looking to the skies this lunchtime as their windows shook and the roar of rota blades reverberated around the Norwich suburb.
Many from the community were soon heading down towards Old Catton Church Of England Junior School to investigate what all the fuss was about.
It was two huge RAF Chinook helicopters which had landed at the school, stopping off for a visit while in the area for some training.
They had flown up from RAF Odiham in Hampshire and flight lieutenant Luke Gleadhill wanted to make a surprise visit to his little sister Ellie's school.
The former Sprowston High School student had organised earlier this week to make the surprise visit to the school and staff had then had the tough job of keeping the visit under their hats.
But the plan came together perfectly and shortly after midday the school's pupils got a Friday treat that they will never forget.
For pictures and much more about the surprise visit, see tomorrow's Evening News.
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