In this plan CYYT/10 M078F330 DCT YYT DCT NICSO NATU 48N050W/M078F350 NATU XETBO DCT ARKIL/N0454F350 DCT ANNET UM25 INGOR/N0427F280 UM25 LUKIP LUKI9V LFPG/09L notice that speed starts in M (mach) at level 330 and changes to K (knots) at level 350 - any idea why? I would think at 350 is would still be M. HINT ??? - Where the change occurs is at ARKIL which is within Shanwick control and Shanwick issues speed commands in “K” not “M” - does that make sense?
You plan and file your route over the Atlantic in Mach, but when hitting landfall waypoint in Europe it switches correctly to knots
You got it. Thanks for replying.