I'll have to ask my Jar Head Son-in-Law what the USMC says, since we now know what the Army, Navy and USAF say...the boy is an air traffic controller at at a helicopter base, surely he'll know.I'm no aeronautical engineer, but I believe the earth simply repels helicopters because they are so ugly. At least that is what the Naval Aviators I used to ride motorcycles with told me.
