While the majority of aircraft that appear at RIAT are military, you do get some civilian types that show up as well. This year, one of these was a Canadian registered Bell 47. This airframe is a Bell 47H-1 which I am informed is a pretty rare member of the larger family. No idea whether this is true or whether these things are common as muck. I certainly haven’t got a pile of shots of similar airframes but that is hardly proof. Given that it is registered in Canada, I am not sure how much time it is spending in the UK, but it was here and flying so that’ll do!