Military flypast

As I was planting another 28 Alder whips, I could hear one of the big helicopters from Spadeadam just beyond the brow of the hill. It sounded very close, and sure enough, when it emerged it was directly over the barns, flying at about 50m above the ground. I have to admit it was slightly unnerving to watch it fly towards me and directly overhead, like a Vietnam war scene from Catch 22. I waved, in a slightly self conscious way, in no doubt that I would not be able to see even if they waved back.