The X-43A reached a speed of Mach 6.83, or roughly 5,000 miles per hour, and flew under scramjet power for about 10 seconds. This flight set a new world record for the fastest air-breathing aircraft.

Spending on the scramjet technology for the B-52 cost about $250 million from 2004 through 2011. Last year the Pentagon estimated that its Advanced Hypersonic Weapon program would cost about $600 ...

Scramjet: A type of airbreathing engine that maintains supersonic airflow throughout the combustion process to produce thrust without traditional compressors.

Minister of State for Defence Sanjay Seth visited DRDO's Dr APJ Abdul Kalam Missile Complex in Hyderabad and reviewed the ...