Restriction
had to have been a transient, and fuel related. Scrapers, plastic, condoms, not possible, the block was a phantom, then a plug, then a phantom. What type of material would flow just fine at green descent, flow more slowly as flow and pressure increased, then mimic a solid, resisting all power and pumps to get it to move along. A change in phase? likely. A change in viscosity? easily. How about a change in energy content. John Green? (not caloric, but entropy)
Flight safety, I'm glad you brought up Oil Cooling. A thin oil, jet lube does not do well in very low temps. Fortunately it can be cooled by fuel, but wait, we need to heat it. Congealed oil in the cooler? Subject to convective cooling by the airstream at -70? Why should frozen oil bother 038? There's plenty left in the case. But if some is locked up in the FCOC and further cooling the fuel, well that's a horse of a different hue. Temps in the cooler? energy at 1.57EPR in the cooler. Where is the bypass? Does it matter? Who needs ice when the temp in the FCOC is -70C? Thaw? sure, give us twenty minutes. Pure speculation.
Last edited by airfoilmod; 19th June 2008 at 23:51.