Thanks for the input..
quote: 1. The cache can't be hidden so that people would intentionally or accidently cross the flight line. Their presence would be illegal. Since all airports, public and private, are regulated by the Federal Government, I'm not sure if your local controlling authority actually has the power to authorize such an activity.
Naturally some common sense applies to all Geocaching. An AeroCache (at a "public" airport) would need to be placed on the "non-security" side of the facility so that all Geocachers would have easy access - And, probably a difficulty level 1 or 2 (ie. Lockbox, mailbox, etc.) with clues for the lock or other creative idea.
Also, Only airports receiving Federal/State funding are (somewhat) controlled and become "public" by nature. The airport grounds/access are maintained locally. Private airports (such as ours) are not controlled - except by the landowner. (However, I wouldn't necessarily advocate placing a cache at a busy tower controlled airport (B,C,D).
Most FBO and Airport managers/authorities I have spoken with about this new concept welcome the idea, and are "bugging" me to place a cache at their facility to increase GA traffic.
Lets Fly..
AeroCaching - an alternative to the $100 hamburger