Originally Posted by
CLT Guy
Agreed. The last 3 airplanes that I flew professionally before I came to 121 didn't even have a GPS in them. We navigated via good old fashioned VOR receivers, and even shot NDB approaches. I quickly learned the RNAV stuff in class, but not knowing it before hand did not hurt me at all.
That has no applicability to even RNAV. Is knowing what RAIM and WAAS are important? Sure. Is knowing how the engineers specifically designed the system? No. That's like asking the psi of the fuel nozzles on cruise flight.