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Ballistic missile
Missile that follows a sub-orbital ballistic flightpath / From Wikipedia, the free encyclopedia
For self-navigating guided constant-speed missiles, see Cruise missile.
A ballistic missile (BM) is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typically stay within the Earth's atmosphere, while most larger missiles are exo-atmospheric. The largest ICBMs are capable of full orbital flight. These weapons are in a distinct category from cruise missiles, which are aerodynamically guided in powered flight and thus restricted to the atmosphere.
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- 1. The missile launches out of its silo by firing its 1st-stage boost motor (A).
- 2. About 60 seconds after launch, the 1st-stage drops off and the 2nd-stage motor (B) ignites. The missile shroud (E) is ejected.
- 3. About 120 seconds after launch, the 3rd-stage motor (C) ignites and separates from the 2nd stage.
- 4. About 180 seconds after launch, 3rd-stage thrust terminates and the post-boost vehicle (D) separates from the rocket.
- 5. The post-boost vehicle maneuvers itself and prepares for re-entry vehicle (RV) deployment.
- 6. The RVs, as well as decoys and chaff, are deployed.
- 7. The RVs (now armed) and chaff re-enter the atmosphere at high speeds.
- 8. The nuclear warheads detonate.