So I think the outcome of this post is that you CAN take your hand luggage if it has WHEELS, but make sure you check FTC's sizes as they are much smaller than other airlines, and if you have a case that fits for Easyjet, Jet2 etc etc then there is a 100% chance it WILL NOT fit in the FTC cage and they will charge you to put it in the hold (unless you are lucky).
Be careful out there ;-)