Spitfire Mk IX RR232 heads south-west over the western tip of the Isle of Wight in late March 2016 - the chalk stacks of The Needles are just off the bottom of the picture. The fortifications of the island’s Needles Battery are clearly visible at lower right, while in the upper right-hand corner of the image is the edge of the High Down Test Site, where Black Knight and Black Arrow rockets were ground-fired in static test gantries during the 1950s and 1960s.