slip and turn - how would it be either unsafe or unprofessional to expect Ryanair, or any other, aircraft to fly their filed FPL route and adhere to all speed limiting points???
Absolutely!! If they plan their flights and their fuel based on ATC direct routeings then that is bordering on criminal. I would suggest that even Ryanair would not (?) employ this practice.
Slip and Turn - I think you have misunderstood the concept of working to rule here matey. An air traffic environment
requires strict adherence to rules and regs. Having someone follow
THEIR filed route is hardly an inconvenience to them is it....its what they EXPECT to do....
Spamcan