Originally Posted by
GA Driver
What is ACTUALLY going on up there? Yes I have the notams, and read the method of works but whatever it is seems to be taking an awfully long time...
I think this was bought up about the Melbourne some pages back. The wind quoted is often different to atis winds. The crosswind quoted though is often horrendously different. Rwy 34, 330/30kts x/wind 18?? Its very different to the calculators we are using.
Alpha Works - I think it might be slab replacement but you'd have to contact Melbourne Airport to be sure.
Wind and Crosswind/Tailwind - Most of the confusion in this has stemmed from the ATIS wind direction/speed being quoted is an average, and the crosswind/tailwind component quoted is a maximum (the wind given with a landing clearance is an instant wind).
Having said that, we're trying to be clearer with this and so a 330/30 Max crosswind 18 kts would probably be better put as Wind Varying between 310 and 350 degrees, mnm 26 kts, max 36 kts, max crosswind 18 kts.