- published: 20 Jun 2016
- views: 15602
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.
Although rockets and missiles also travel through the atmosphere, most are not considered aircraft because they do not have wings and rely on rocket thrust as the primary means of lift.
The human activity that surrounds aircraft is called aviation. Manned aircraft are flown by an onboard pilot. Unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, propulsion, usage, and others.
Flying model craft and stories of manned flight go back many centuries, however the first manned ascent - and safe descent - in modern times took place by hot-air balloon in the 18th century. Each of the two World Wars led to great technical advances. Consequently the history of aircraft can be divided into five eras:
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There's a cell for us all
Always I had this need to control
Never will it leave me alone
Looking into my master's dead eye
I know there's a cell for us all
This is the great summer of our kind
Brought upon us in conspiracy
Between a burning lord
And the ruminant monster called Earth
There are ghosts in this fist
Malfunction in my heart
My blood runs in the wrong direction
If I could I would rape the whole world
Machine of conceited fornication
I cut down the skies
And move through the layers of logic
I slice up reality
And here comes the light
Executing our history
Always I had this need to control
Never will it leave me alone
Look deep into this reptile eye
God shows there's hell for us all
This is the great summer of our kind
Brought upon us in conspiracy
Between a burning lord
And the ruminant monster called Earth
There are ghosts in this fist
Malfunction in my heart
My blood runs in the wrong direction
If I could I would rape the whole world
Machine of conceited fornication