Ballistic vs Cruise Missiles

Definition

Two broad classes of guided missiles distinguished by how they fly to the target: a ballistic missile follows a high arcing trajectory mostly under gravity, while a cruise missile flies low and level like a guided aircraft.

Key points

• A ballistic missile is rocket-powered only during the initial boost, then coasts on a high parabolic (ballistic) path and re-enters to strike; it is fast, long-ranged, and usually carries a heavy or nuclear warhead.
• A cruise missile is powered throughout its flight by a jet engine, flies low to evade radar, and can manoeuvre and hug terrain; it is slower but very accurate.
• Ballistic missiles are classified by range into short, medium, intermediate, and intercontinental (ICBM); India's Agni series and Prithvi are ballistic missiles.
• BrahMos, jointly developed by India and Russia, is a supersonic cruise missile; cruise missiles can be subsonic, supersonic, or hypersonic.
• The Missile Technology Control Regime (MTCR) restricts the spread of missiles able to carry weapons of mass destruction; India joined it in 2016.

Why it matters for CAPF

The trajectory difference, powered versus coasting flight, the Agni and Prithvi (ballistic) versus BrahMos (cruise) examples, and the MTCR link are standard defence-technology facts directly relevant to national security.

Common confusion

A ballistic missile is powered only briefly and then coasts on a high arc, while a cruise missile is powered the whole way and flies low; do not assume the longer-range weapon is the more accurate one. BrahMos is a cruise missile, whereas Agni and Prithvi are ballistic.

Related concepts

concept missile technology control regime, concept types of satellites and orbits, concept nuclear fission and fusion

Parent note

strategic and defence technology