I am just now returning to the R/C hobby after a 35 year absence. (Abducted by aliens. :-) During those 35 years, I got my pilot's license and learnd a lot more about aerodynamics than I knew from my model days. One of the key things that I've learned is the importance of airspeed, especially during landings. Unfortunately, modelers have to guess what their airspeed is, based on visual clues, since we don't have any on-board feedback device.

There is no doubt that electronics have advanced tremendously in those 35 years, especially in R/C gear (my first radio was a Galloping Ghost!) So why hasn't someone designed an airspeed detector small enough for our models that would relay our plane's airspeed back to the pilot? The R/C car guys have engine temperature sensors that let the driver know how his motor is doing...

Or is this just a dumb idea? It's okay, I can take your ribbing if it is. It's just something that I was wondering about. (I'm also wondering if the guys who build models of airliners install servos that make their flight crews walk around with "On Strike" signs after every fifth landing. Now THAT would be true scale!)