Post #251 and #254
Having to do with mirrored and duplicative systems (Fuel). has been addressed elsewhere also. In perfecting more and more dependable systems, the Human side of the equal sign becomes more and more..... Dependent. ETOPS must for purposes of economic feasibility, divert from isolation and engineered anomalous design to make more and more infrequent, the failures which challenge the philosophy. There is a definite difference between redundancy and anomalous isolation. Redundancy merely provides two systems to fail under similar circumstances; heterogeneous engineering separates the systems in ways that "prevent" mirrored fault.
Airfoil to Re-Heat: it's called engineered anomalous design.
As I offered before, 038 isn't about Etops, instead its about vulnerability of separate and equal systems.
Last edited by airfoilmod; 19th June 2008 at 20:28.