Or Stepping Down

​A pilot can similarly transition down, from a larger, more complex aircraft such as an airliner or corporate/military jet, down to a smaller Cessna, Beech Bonanza or Cirrus. This catches many pilots off-guard, as they assume it will be a simple checkout, and important systems training may be overlooked. This is even more important now with ever more sophisticated avionics showing up in many GA airplanes that sometimes rival the avionics found on Boeings. The avionics checkout alone might require several hours, or days.