range and long range

[airwjo]

hi guys
first of all thank you for the useful postings in this forum
I have 2 questions:
1) How dos LRC (long range cruise) change with headwind and why
2) How does range change with headwind and why
:confused:
thanks for answer

[CV Donator]

I believe that LRC does not change with wind whereas Max range or Cost Index 0 does change with wind. Basically when flying into a headwind the Speed increases and with a tailwind the speed decreases. The FMC on a Boeing calculates this automatically. Old Smokey did a good piece on this a while ago which was a great help in my study for a certain Hong Kong based airline.

[airwjo]

thanks for the help
looking for further infos
who is old smokey?

[alexban]

Who is old smokey?..you must be young here...just do a search by the user,and you'll be amazed..he's one of the best professionals i've ever 'met' ...unfortunately not knowing him in real life ,yet (I hope)..