Gaganyaan Mission : ISRO to send Indian into space by 2022

Also came across something in Reddit. It claims 2 things regarding the CE20

1. Now it has been successfully demonstrated that the stage can be restarted with the remaining fuel.

2. Its capacity has been increased. The total payload capacity increase is 200kg.
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Gaganyaan Mission: Successful second and third Hot Test of Service Module Propulsion System

July 27, 2023

ISRO successfully carried out two more hot tests on the Gaganyaan Service Module Propulsion System (SMPS) at ISRO Propulsion Complex (IPRC), Mahendragiri on July 26, 2023. The SMPS is designed and developed by the Liquid Propulsion System Centre (LPSC) located at Bangalore and Valiamala, Thiruvananthapuram. These tests marked the second and third hot tests in the Service Module – System Demonstration model (SM-SDM) phase 2 test series. The first hot test was conducted on July 19, 2023.

During yesterday’s tests, the thrusters were operated in both continuous and pulse mode, in sync with the mission profile. The initial hot test which lasted for 723.6 s focussed on demonstrating Orbital Module injection and the calibration burn of 100 N thrusters and Liquid Apogee Motor (LAM) engines. The calibration burn was essential to identify and isolate any non-operational engines. The LAM engines and reaction control system (RCS) Thrusters performed as expected.

The latter hot test, with a duration of 350 s, aimed to demonstrate the circularization of the Orbital Module to achieve the final orbit. During this test, the LAM engines operated in continuous mode, while the RCS Thrusters fired in pulse mode.

Looking ahead, three more hot tests are scheduled to demonstrate de-boosting requirements and off-nominal mission scenarios. These tests will further validate and refine the performance of the propulsion system, ensuring its readiness for the upcoming Gaganyaan mission.

Gaganyaan Mission: Successful second and third Hot Test of Service Module Propulsion System

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ISRO Conducts Drogue Parachute Deployment Tests for Gaganyaan Mission

August 11, 2023
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Vikram Sarabhai Space Centre (VSSC)/ISRO, successfully conducted a series of Drogue Parachute Deployment Tests at the Rail Track Rocket Sled (RTRS) facility of the Terminal Ballistics Research Laboratory (TBRL), Chandigarh, during August 8-10, 2023. The tests were conducted in collaboration with Aerial Delivery Research and Development Establishment (ADRDE)/DRDO.

The Gaganyaan mission entails the safe transportation of astronauts to space and back. A crucial component of this mission is the deployment of drogue parachutes, which play a pivotal role in stabilizing the crew module and reducing its velocity to a safe level during re-entry.

Drogue parachutes, packed within pyro-based devices known as mortars, are ingeniously designed to eject the parachutes into the air upon command. These conical ribbon-type parachutes, boasting a diameter of 5.8 meters, employ a single-stage reefing mechanism, ingeniously minimizing canopy area and mitigating opening shock, ensuring a smooth and controlled descent.

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During the three comprehensive tests conducted at the RTRS facility, a range of real-world scenarios were simulated to rigorously evaluate the performance and reliability of the drogue parachutes. The first test simulated the maximum reefed load, marking a groundbreaking introduction of reefing in a mortar-deployed parachute within India. The second test emulated the maximum disreefed load, while the third test showcased the deployment of the drogue parachute under conditions mirroring the maximum angle of attack experienced by the Crew Module during its mission.

These successful RTRS tests serve as a critical qualification milestone for the drogue parachutes, confirming their readiness for integration into the upcoming Test Vehicle-D1 mission. Notably, earlier this year, the RTRS tests of Pilot and Apex cover separation parachutes were also conducted, further accentuating the progress of the Gaganyaan mission's parachute system development.

The intricate parachute sequence for the Gaganyaan crew module's deceleration system encompasses a total of 10 parachutes. The sequence commences with the deployment of two Apex cover separation parachutes, followed by the stabilization achieved through the deployment of two drogue parachutes. Upon release of the drogue parachutes, the mission transitions into the extraction phase, with three Pilot chutes individually extracting three main parachutes, a pivotal step in reducing the Crew Module's speed to safe levels for a secure landing.

ISRO Conducts Drogue Parachute Deployment Tests for Gaganyaan Mission
 
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Test vehicle mission ahead of India’s first manned spaceflight by Sept: Parliament told​

Even with a busy schedule ahead of the landing of Chandrayaan-3 planned for August 23, scientists of the Indian Space Research Organisation (ISRO) have been working on the country’s human spaceflight mission. The first test vehicle mission – meant to test the crew escape system – has been planned for August or September, according to a reply by Minister of State for Science and technology Jitendra Singh in Parliament.

The test vehicle is a single stage liquid propellant rocket meant to test all the systems of Gaganyaan at sub-orbital level before a complete uncrewed mission that will mimic the complete final human mission.

The first test vehicle mission (TV-D1) will check the processes for aborting the mission mid-air, the parachute system that will bring the crew module down to sea, and the recovery of the crew members from the module after splashdown.

"All subsystems pertaining to the Test Vehicle (TV-D1) mission have been realised. Crew module integration is completed,” the minister said in his reply. The space agency has already tested the propulsion system of the crew escape system and the crew module on ground.

Helicopter-based air drop tests of the crew escape system have also been completed, according to officials from the space agency. “A helicopter – or any aeroplane for that matter – cannot go to an altitude of say 10km from the surface of the earth. The test vehicle missions will test all systems and processes at a much greater height,” said the official.

A second crew module for the first uncrewed mission has also been completed and delivered to the space agency by the industry, the reply said. The minister had previously said that there will be two test vehicle missions before the first uncrewed mission and another two before the second uncrewed mission. The mission carrying humans will take place only after that.

The minister said the astronauts are nearing completion of their training.

Four selected air force pilots have already undergone generic training in Russia and were receiving mission specific training in India. The Indian Institute of Technology-Madras has been roped in to develop a training module for them using augmented reality, virtual reality, and mixed reality.

In addition, the space agency has also completed the construction of the orbital module preparation facility. Orbital module consists of the integrated crew module and service module. The crew module will be the habitable part of the Gaganyaan spacecraft that will have pressurisation and life support systems for the crew members, whereas the service module will be an unpressurised structure that will contain the propulsion system, power systems, and avionics to support the crew module during the mission.

Launch pad augmentation works for Gaganyaan are also underway. The launch pad too has to be human rated. At present, no one is present on the launch pad at the time of launch; the mission is controlled from a complex nearly 5km away.

Training of the space agency and the Indian Navy for recovery of the crew once they splashdown in the sea is also underway, the minister said in his reply. “The delivery of human centric products for crew training commenced from various national labs. Testing of human centric products is underway,” the reply said.
 
ISRO Conducts Drogue Parachute Deployment Tests for Gaganyaan Mission

August 11, 2023
View attachment 29703

Vikram Sarabhai Space Centre (VSSC)/ISRO, successfully conducted a series of Drogue Parachute Deployment Tests at the Rail Track Rocket Sled (RTRS) facility of the Terminal Ballistics Research Laboratory (TBRL), Chandigarh, during August 8-10, 2023. The tests were conducted in collaboration with Aerial Delivery Research and Development Establishment (ADRDE)/DRDO.

The Gaganyaan mission entails the safe transportation of astronauts to space and back. A crucial component of this mission is the deployment of drogue parachutes, which play a pivotal role in stabilizing the crew module and reducing its velocity to a safe level during re-entry.

Drogue parachutes, packed within pyro-based devices known as mortars, are ingeniously designed to eject the parachutes into the air upon command. These conical ribbon-type parachutes, boasting a diameter of 5.8 meters, employ a single-stage reefing mechanism, ingeniously minimizing canopy area and mitigating opening shock, ensuring a smooth and controlled descent.

View attachment 29704
During the three comprehensive tests conducted at the RTRS facility, a range of real-world scenarios were simulated to rigorously evaluate the performance and reliability of the drogue parachutes. The first test simulated the maximum reefed load, marking a groundbreaking introduction of reefing in a mortar-deployed parachute within India. The second test emulated the maximum disreefed load, while the third test showcased the deployment of the drogue parachute under conditions mirroring the maximum angle of attack experienced by the Crew Module during its mission.

These successful RTRS tests serve as a critical qualification milestone for the drogue parachutes, confirming their readiness for integration into the upcoming Test Vehicle-D1 mission. Notably, earlier this year, the RTRS tests of Pilot and Apex cover separation parachutes were also conducted, further accentuating the progress of the Gaganyaan mission's parachute system development.

The intricate parachute sequence for the Gaganyaan crew module's deceleration system encompasses a total of 10 parachutes. The sequence commences with the deployment of two Apex cover separation parachutes, followed by the stabilization achieved through the deployment of two drogue parachutes. Upon release of the drogue parachutes, the mission transitions into the extraction phase, with three Pilot chutes individually extracting three main parachutes, a pivotal step in reducing the Crew Module's speed to safe levels for a secure landing.

ISRO Conducts Drogue Parachute Deployment Tests for Gaganyaan Mission
Video :