Sooty
As Designed. If I'm not mistaken, the FOHE's intended purpose is to cool Oil not Heat Fuel. Warm Fuel is not a designed consequence, though obviously it gets taken into account. Down the road, if I may anticipate remediation, It will be considered insufficient to mitigate Icing Fuel Lines with Applied Power Profiling. There will need to be a mechanical solution. There is too much room for PE in a short term ("Advance the Throttles, this way, at this time," etc.). So a (Automatic) bypass will be installed, or Fuel Filters to sort small particle ice, or Fuel Heaters to melt ice, etc.
Perhaps one solution might include Fuel Bypass coordinated with Oil Bypass. If the Oil is sufficiently cool to bypass the FOHE, why continue to supply the Engine with FOHE derived Fuel? Link the bypasses to activate simultaneously??
AF
Last edited by airfoilmod; 8th Mar 2009 at 16:57.