| |
|
|
Aviation
refers to flying using aircraft, machines designed by humans
for atmospheric flight. More generally, the term also describes
the activities, industries, and regulatory bodies associated
with aircraft
The
modern age of aviation began with the first untethered human
lighter-than-air flight on November 21, 1783, in a hot air
balloon designed by the Montgolfier brothers, and balloon
flight became increasingly common over longer and longer distances
throughout the 19th century, continuing to the present.
The
practicality of balloons was limited by the fact that they
could only travel downwind. It was immediately recognized
that a steerable, or dirigible, balloon was required. Although
several airships, as steerable balloons came to be called,
were built during the 1800s, the first aircraft to make routine
flights were made by the Brazilian aviation pioneer Alberto
Santos-Dumont.
General
aviation includes any flight that is not military and does
not fly on a regular schedule, ranging from a recreational
flight in a hang glider to a non-scheduled cargo flight in
a Boeing 747. The majority of flights on any day will fall
into this category. |