DV, you post #1417 was an excellent reply to EdSett's ill informed comments. As a safety engineer of over 10 years, I read EdSett's comments with deep suspicion, but unable, without the detailed knowledge of the systems and that area of the aircraft to disagree.
Your point:
This has got nothing to do about understanding Nimrod, but about having specialist knowledge in system failure rates.
is absolutely spot on, QinetiQ may not be Nimrod experts, but they do have the system safety engineering expertise to extract the right information from those who are !
Well said DV
S_H