12 seconds
There are many people to claim to of flown but the first witnessed flight might be by a Mr. Otto Lilienthal
making the first airplane and succesfully flying it
the world's first flight over a large body of water in a heavier-than-air craft.
The are famous for invinting the first ariplane.
Henri Coandă was the first man to build the JET ENGINED AIR CRAFT.
Some military air craft are capable of refueling in flight
A number of people had built gliders; they could jump from a hill and fly down, but it wasn't "powered" flight. Orville and Wilbur Wright built the first heavier-than-air craft that could take off under its own power.
Depends if it's direct and how large the air craft is
Air craft cabin is fully pressurized.
Sally Kristen Ride
Military aircraft do not have flight attendants. If you are perhaps asking how to be assigned to a military chartered flight, you would need to already be a flight attendant, and check with the head office of your airline.
This really depends on how long the flight is. The longer the flight the more expensive the seat, regardless of class. Also, Frontier Air doesn't offer first class travel. They only have one class.