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Types of missiles
The two main kinds of missiles are simple "rockets" and "guided missiles". A rocket is no longer controlled once it has been launched. A guided missile can be controlled after it has been launched. Some missiles used in anti-aircraft warfare, such as the AIM-9 Sidewinder, guide themselves with temperature. Others guide themselves by radar or are under radio control.
The V-1 flying bomb was an early cruise missile, a little airplane with a bomb.