You're going to need a much faster shutter than 1/50th to capture a ceiling fan.
Your best bet is to freeze it by firing the flash.
For action shots, you'll need a very fast shutter, not so much continuous, although that would be nice as well.
For the air show, you should hopefully be okay since your outside, but just remember to get the shutter as fast as possible without going underexposed.
Thanks for the tip, I changed the settings to the highest at 1/2000 and used the flash. Works good on the ceiling fan.
Another hour from now I'll be at the airshow hope it works well.