borgha
Fuel, leaving the Tankage, is under ever increasing pressure from LP pumps toward the HP pumps not to mention, it is moving, both actions would increase its resistance to solidification by introducing friction due to transit, and pressure, which lowers the Freezing Point. At the Low Side of the HP pumps, given a restriction upstream, the Pressure could be drastically reduced, raising the Freezing Point and potentiating fuel solidification or, more likely, transient emulsified water turning to ice which could have blocked critical pathways. This is my current theory, notwithstanding AAIB testing of several samples of collected Fuel.
Again, with a "homogeneous Fuel supply" isolation/separation of Fuel source might have not "protected" either powerplant. The restriction would be timed emphatically on temperatures, demand, and pressure, all of which may have been so close, the isolation would be "overridden" by parameters that could not be prevented by merely "separating" the Fuel sources. The five second lag actually supports this eventuation.
If my theory has weight, it might be better to Fuel the Engines differently.
One from a Wing the other from the Center, given that the location and other factors of the different tanks increase the heterogeneity of the Fuel source.
Last edited by airfoilmod; 21st Feb 2008 at 17:28.
Reason: add