It depends on the airline, but usually you have to be 14 or older. However just incase bring a letter giving parental concent. They will know your age from your passport. Although 16 should be fine.
Ask the airline. A friend of mine did a over seas flight with one connection when he was 14 a few years ago. That was with Lufthansa.
No. I recently saw a news item where 3 children did fly alone. One reason they were able to do this is that the oldest was 16 and in some states the airlines will allow a 16 year old to fly alone. He/she still needs the proper documents and identification as well as a ticket.
Do what fly packs or alone?
Yes, If under a certain age like 12 needs supervision. 16 year olds are people around that age are allowed to travel alone.
solos
There is no way to get a helicopter let alone fly on
Yes a 16 year old can drive alone if your un the age of 16 then you have to have an adult with you
Certain birds, such as hawks and eagles, are known to fly alone as they are solitary hunters. Additionally, some migratory birds, like the common nighthawk, also tend to fly alone during their long-distance journeys.
You have to be at least eight.
no
only on the "Other Guys"
An unaccoupied minor.
Turkey Vulture tend to fly in "packs" although they are actually called Committees. Black Vulture tend to fly alone or follow Turkey Vulture and steal their finds.