And there is nothing that illustrates better the difficulty MoD project managers face these days. Many of the DEFCONs listed are at best outdated, some are plain wrong and in many cases completely contradict mandated regs, including airworthiness. In turn, this explains to a large extent why contracts take so long to negotiate. PM states one thing. Commercial insert DEFCON, not realising it is contradictory. Company say you must be joking, make your mind up; and so on. No wonder they try to bypass the system. The ones I always look for are the 112 series. The best tool a project manager ever had. I see they've been deleted. Industry must be laughing up their sleeves and counting the profits.