ISRO to start testing unmanned aircraft for the Gaganyaan mission
By MYBRANDBOOK
The Gaganyaan mission's unmanned flight tests have begun by the Indian Space Research Organisation (ISRO), beginning with the Flight Test Vehicle Abort Mission-1 (TV-D1). With the success of this test flight, the first Gaganyaan mission with Indian astronauts will be possible, followed by more qualification tests and unmanned missions.
"ISRO to commence unmanned flight tests for the Gaganyaan mission. Preparations for the Flight Test Vehicle Abort Mission-1 (TV-D1), which demonstrates the performance of the Crew Escape System, are underway," ISRO said on X.
The LVM3 rocket, the heavy lift launcher of Isro, has been identified as the launch vehicle for the Gaganyaan mission. It consists of the solid stage, liquid stage and cryogenic stage.
All systems in LVM3 are re-configured to meet human rating requirements and christened Human Rated LVM3 (HLVM3).
Explaining the mission, Isro said the first development flight Test Vehicle (TV-D1) is in the final stages of preparation. The Test Vehicle is a single-stage liquid rocket developed for this abort mission. The payloads consist of the Crew Module (CM) and Crew Escape Systems (CES) with their fast-acting solid motors, along with CM fairing (CMF) and Interface Adapters. This flight will simulate the abort condition during the ascent trajectory corresponding to a Mach number of 1.2 encountered in the Gaganyaan mission.
"CES with CM will be separated from the Test Vehicle at an altitude of about 17 km. Subsequently, the abort sequence will be executed autonomously commencing with the separation of CES and deployment of the series of parachutes, finally culminating in the safe touchdown of CM in the sea, about 10 km from the coast of Sriharikota," Isro said in an explanatory note.
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