CURRENT AFFAIRS

Detailed explanation-1: -This first experimental mission of ISRO’s Scramjet Engine towards the realisation of an Air Breathing Propulsion System was successfully conducted from Satish Dhawan Space Centre SHAR, Sriharikota.

Detailed explanation-2: -Air Breathing Propulsion. Air Breathing Propulsion provides a technological key for low cost space transportation system. They eliminate the use of oxidizer being carried by making use of the atmospheric air and there by significantly improve the payload fraction.

Detailed explanation-3: -ISRO’s Hypersonic Air Breathing Vehicle with Air frame integrated system (HAVA) is a lifting body hypersonic vehicle integrated with scramjet engine, uses ADMIRE booster to an altitude of 44 km and glide down to 25 km altitude with a Mach number of 6.

Detailed explanation-4: -1. Which of the following is not an air-breathing engine? Explanation: Unlike turbojet, turbofan, scramjet, ramjet or turboprop engines, rockets are not air-breathing engines. It carries both fuel and oxidizer along with it, while the other engines suck in air to undergo combustion with the stored fuel.

Detailed explanation-5: -Jet aircraft only need to carry their fuel and use the air to oxidise (burn) the fuel. There is no air in space. Rocket engines have to carry both the fuel AND their oxidiser, which is partly why they start off so big, to lift a smallish weight into orbit.