SAFETY TEST FOR GAGANYAAN
20 Oct 2023 8 mins Download PDF
Why in the News?
ISRO is set to carry out the first of a series of tests of systems and procedures of Gaganyaan mission, in less than two months after the Chandrayaan-3 Moon landing.
The safety test:
- The Flight Test Vehicle Abort Mission-1 (TV-D1):
- It will demonstrate the performance of the Crew Escape System of the Gaganyaan project.
- The flight will be the first of two abort missions to test the safety mechanisms that will allow the Gaganyaan crew to leave the spacecraft in an emergency.
- The test exercise will see the rocket rise to an altitude of almost 17 km before an abort signal is triggered.
- This will lead to separation of the crew module, which will descend using a parachute for a splashdown in the Bay of Bengal.
- The test mission will last a total 532 seconds from liftoff to the crew module splashdown about 10 km from the Sriharikota coast.
- The crew module will be empty for the test.
- What will be tested?
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- The TV-D1 flight will demonstrate the new Test Vehicle
- It will demonstrate a basic version of the crew module which is the capsule in which the astronauts will be seated during the Gaganyaan human space flight.
- The functioning of systems for separating the crew module from the rocket in case of a mid-flight emergency (abort mission) and the escape of astronauts will be checked.
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- This Test Vehicle will use existing liquid propulsion technology, but has innovations such as the throttleable and restartable L110 Vikas engine capable of controlling propellant use.
- ISRO will use the Test Vehicle for several concepts that are under development, including the Scramjet engine technology for re-usable space launch vehicles.
3. Crew Escape System:
a. Soyuz MS 10 mission of Russia registered the first mid-flight failure of a Soyuz rocket since 1975 and later and the two astronauts aboard the mission, Alexey Ovchinin of Roscosmos and Nick Hague of NASA, landed on Earth.
b. ISRO has a crew module which shall have the specifications of:
- safe for astronauts under conditions of very high heat and pressure
- Reliable escape mechanism in the event of an emergency
- environmental control and life support systems
- integrated vehicle health management system
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