744 FMC flight plan wind usage
My first question is normally a computer flight plan ( Jeppesen and many others) are based on "ECNO" speed mode or "LRC" speed mode ?
If wind modifications, wind mixing and winds and step climbs and Cost Index are conducted during cruise, which speed mode should pilot select on VNAV page ?
I understand that "ECNO" is a defult mode for FMC, if forecast winds for fuel remain at destination is necessary to re-calculateste, LRC and MCP speed mode will have the this functions?
Thanks & Regards,