Very smart people.
Depends on your definition and what kind of airplane. Large commercial airplanes are the most efficient way to move people. Small airplanes are horrible wastefull things.
Shrapel, burns, and bullets from the strafing Japanese airplanes.
Airplanes are made almost every year since 1900.
Airplanes are made up of Aluminium, Steel and alloys of Titanium. Bigger airplanes such as A380 are made of other kind of materials. A380 is made up of Carbon Fibre and some other alloy whose recipe is kept secret which is Ultralight and very strong.
Some airplanes are made in the US, but not all. there are several other countries int he World that can make airplanes too.
So people like you could get to places quicker than cars or trains.
Airplanes made transportation easier. They have made transportation faster. The disadvantage is that they are costly.
Airplanes are made for fast transposrt of passengers or cargo. They are also used for defence purposes.
People use model airplanes because they like airplanes or the look of them.
People have airplanes to get from place to place faster, to get to inaccessible places, and to fight battles.
Airplanes provide faster travel, especially for places that are far away. They made it possible for people to travel to places that are far away faster, and for trade between distant places to be faster and easier.
for quick trans.