ATWATER, Calif. (KFSN) -- In Atwater, you might spot small aircraft in the sky on a clear day. The Merced County Radio Control Club normally flies model planes, but on Thursdays, they fly helicopters.

First-class fliers have a code. It’s subtle and usually comes with a glass of champagne. If you want fit in before you fall flat in a sea of stares, learn the unspoken rules—lest you mistake the amuse ...