Mostafa, you've certainly got me interested and an example of such overcharging would be welcome, even if the x10 is a slight exaggeration.
Tourist, I bow to your knowledge of ASaC but IIRC the AEW guys you mention worked on a specific aspect when the prime contractor announced they didn't know where to begin. They were successful but tuc is also correct. The same prime reneged on or were absolved of a lot of other work and Westlands dug MoD out big style. They also dug MoD out on pre-requisite progammes. IIRC at one point the prime considered asking to be released from the contract, which you'll recall they didn't actually bid for. How that came about I haven't a clue. Sounds odd and far more interesting than arguing about Westlands.