Sorry Barnaby... most people on here know they're dealing with an ancient old git... but I try hard!
Edited a bit later: Hmm looks like, as usual, I was too quick to apologise. I have just checked the March, 2009, edition of MATS Pt 1 and it refers to VORTEX (as in Vortex wake spacing requirements) when dealing with separations, which was what I was referring to. Wake Turbulence is only referred to in terms of turbulence (note the spelling Barnaby) experienced by aircraft and reports dealing with it.
Last edited by HEATHROW DIRECTOR; 10th Jun 2009 at 10:26.