The Brahmos ALCM weighs 2.5 tonne and till date it is the heaviest weapon to be deployed on the Su-30 MKI. The aircraft was especially modified by Hindustan Aeronautics Ltd for giving it the missile-carrying capability. The missile is propelled first by a solid propellant booster engine that takes it to supersonic speeds. After it separates, the missile is accelerated further to around three times the speed of sound (mach 3) in the cruise phase with a liquid ramjet.
In this photo provided by the Indian Defense Ministry, Indian President APJ Abdul Kalam, front right, and Indian Defense Minister AK Antony, left, look at a replica of the Brahmos missile in New Delhi IN 2007.(AP)