Nine Eighteen Licence is the US version. License is the UK spelling.
Maxflyer, I'm fairly sure that 'licence' is the UK spelling and 'license' is the US spelling but thanks; I
am now sorry I mentioned it in the first place! I was having a small joke with
strafer, hence the smiley.
P.S. The FAA call it an 'Airman Certificate' anyway, if you want to be 100% accurate. 
9 Eighteen
