Oceanic "Position" wind reporting
I've asked this on a few websites, emailed our management and training department and e-mailed NATS but haven't yet had a reply, so.....I'll ask the experts!
When reporting a position on the oceanic routes, do you require a wind report in TRUE or MAG? Our FMCs give the wind in mag but that is not so useful for plotting when you get near Canada where the magnetic variation is high. Have we been giving duff information for years? Our manuals 'suggest' reading straight off the FMC but I cannot find anyone who can give a specific answer and a reference to prove it.
Can anyone help?
Thanks