(they should inform us before they depart if they cannot make 243ft/nm!)
I was once on this route when a 747 lost a donk on takeoff. You guys were on to me like a ton of bricks - "IMMEDIATErightturnonto270toleavecontrolledairspacecautionWh iteWalthamzonedescendNOWtominimumsafe altitudetrafficisa747inyour80clockdoyouhaveitvisual " or something very much like that!
W