You lot are all taking the pi$$ aren't you?? I don't think that I've ever read such UTTER BOŁŁOCKS. Fly a C150 AS THE DESIGNER INTENDED and AS PER THE FLIGHT MANUAL!! Data cards?? In an undernourished spam can?? Get serious!! Teach and practice BASIC handling skills and airmanship in the C150 - the rest of the complexity appropriate to Public Transport (Airlne) operation can come PROGRESSIVELY throughout the students training ONLY WHEN IT'S APPROPRIATE!! Don't try and teach the poor little so-and-sos to run before they know how to walk!!