|MadSci Network: Engineering|
Dear Friend, IĄve heard from our Operations Department that Boeing recommends JP4 fuel for civilian airplanes. As long as I know JP5 is a special fuel with better freezing resistace and lower density changes due to high level flight (high altitude, above 40,000 ft.). ItĄs for military aircrafts mostly. Anyway, I didnĄt discover does PEL means. Sorry not being helpful this time. Best Regards, Fernando Grau
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