Aircraft : All The Best Free Flash Games Relating To Aircraft
An aircraft is an apparel made by men, able to reach and fly through the Earth's atmosphere. Two kinds of aircraft exist, the aerostat and aerodyne.
The first kind is able to fly because it is lighter than air, his mass being lower than air's mass in move. It is the Archimède's push that makes it possible to fly away, this strength is produced thanks to the use of a gas lighter than the surrounding air in an envelope. Gas balloon use helium whereas a hot air balloon heats the air inside the balloon. These two kinds of apparels are only able to fly vertically and have to use winds to fly horizontally, which compels them to find out the proper height to find winds going towards the desired direction. The airship or dirigible doesn't have this problem, indeed, it uses the principle of the aerostat to fly but is equipped with engines that enable the dirigible to move without being dependent on the winds.
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The second kind of aircraft is the aerodyne, it uses a different principle from the aerostat' s one. As being heavier than the air, it is not the Archimède's push that matters but the lift force which is produced thanks to a buckle, to enable the aerodyne to fly away. Planes, helicopters, or gliders all belong to the aerodyne category. Apparels like planes or ultralight aviation use an engine or a reactor to spin an helix and generate the lift force. Helicopters are gyrodines, they have a spinning buckle and can use the lift force even when making a stop. Gliders, paragliding and hang-gliders use the potential energy and must be thus launched by a high point.