On the other hand I've seen some stuff pulled out of the ocean that has stayed relatively preserved. But, while they don't say the depth of the airplane in the article I assume it's sitting fairly shallow since not only are sport divers looting it, but the article says "made a forced landing in an area of the English Channel called Goodwin Sands at low tide" Getting sandblasted by the tides and currents for decades will definitely not help its condition.