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tcas_climb

EO Diversion speed

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Hey guys I read in the tutorial that the engine out diversion speed is 420, however I read in an airline manual that they use 453 for etops, my question which do I us for pfpx planning? Are we allowed to come up with our own diversion speeds or are the speeds already determine by Boeing or the regulators?

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PFPX has its own built in ETOPS calculation implementation. You can edit it in the aircraft editor, ETOPS tab. PFPX uses 422kts for the 777-200LR.Now, I dont have the PMDG 777,but There should be a table in one of the manuals, probably the FCOM performance inflight section, called "Engine Inop Long Range cruise Control" that gives you the best speed and flight level for a given weight in the case on an engine failure. You can use PFPX to estimate your weight at the Equal Time Point and use that with the chart for a more precise E/O speed. The manual should also include a similar chart  for a gear down scenario, and for an inoperative engine+gear down scenario.

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Hey guys I read in the tutorial that the engine out diversion speed is 420, however I read in an airline manual that they use 453 for etops, my question which do I us for pfpx planning?

 

Company SOP - it's all what they determine is best for them.

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