A few nights ago I stumbled into a conversation on FB Tail Draggers Unit. The question was as simple as it gets: Airspeed, controlled by power or pitch? I know simple, but there so many that were sure the answer was power or a combination of power and pitch. Some thought power controlled speed and pitch controls glide slope. Even a pilot with 25K flew the "big stuff in 3rd world countries without autopilot". This guy also flew T-6's (a heavy underpowered aircraft) in a demo team! Thank God for glider pilots that know the basics. And thank you to all the true geniuses that contribute to this group! Next time I get into an airliner I hope my pilot trained in gliders.