Thiruvananthapuram:

The Gaganyaan manned space flight mission will launch “Indian astronauts into space from Indian soil on an India-made rocket”, Dr Unnikrishnan Nair, the head of the elite Vikram Sarabhai Space Center in Kerala’s Thiruvananthapuram, told NDTV in a special interview this week.

Expected to cost Rs 9,000 crore, Gaganyaan is a “national mission” that will send four specially chosen and trained male test pilots from the Indian Air Force into space, Dr Nair said.

In an exclusive tour of the country’s main rocket lab, an ultra-secure facility, NDTV was given glimpses of the crew module – in which the four pilot-astronauts will travel into space – and the service module – which will be attached to the former, and the space suits that they will wear.

The crew module, Dr Nair said, is a little over 10 feet in diameter and is configured for three people, but this can be adjusted depending on mission requirements. The space suits were purchased from the Russians as part of a deal to buy the seats, which follow the ‘cradle’ philosophy, he said.

On the test pilots themselves, Dr Nair said, “You know… since they are from the Air Force, they are close to astronauts in terms of key attributes, like quick response time, and have responded well to tests like centrifuge, which subjects them to higher acceleration forces.”

“They are now an astronaut training centre for 13 months for training on survivability in different conditions, and then will be subject to parabolic flight tests. Then they will go to Bengaluru, where a Human Space Flight Centre is set up and will get more training, including physical training.”

The four pilot-astronauts – dubbed ‘India’s Fantastic 4’ – were revealed to the country by Prime Minister Narendra Modi last week; they are Group Captain Prasanth Balakrishnan Nair, Group Captain Ajit Krishnan, Group Captain Angad Pratap and Wing Commander Shubhanshu Shukla.

READ | India’s Fantastic 4: Meet Gaganyaan Astronauts Named By PM

Their training will also include academic courses and detailed instruction on Gaganyaan flight systems, as well as yoga, sources at ISRO, India’s space agency, told NDTV.

READ | Gravity, Flying Practice, Yoga: Training For Gaganyaan Astronauts

Earlier all four also received training at Russia’s Gagarin Cosmonaut Training Centre.

Dr Nair also explained why no women will be part of this historic space flight – because pilot-astronauts are drawn from the ranks of Air Force test pilots. At the time, India has no women in that role.

NDTV Explains | Why No Woman Among 4 Pilots Chosen For Gaganyaan Mission

“When I was HSFC (Human Space Flight Centre) Director, we put this idea to the Air Force. But unfortunately, there were then no women test then. Now, I understand there are women test pilots and I hope they will soon join us,” he said.

Meanwhile, NDTV also met Vyommitra – the robotic (female) humanoid that will fly into space for a test flight ahead of the mission. The launch of Vyommitra – whose name comes from Sanskrit words meaning ‘space’ (‘vyom‘) and ‘friend’ (‘mitra‘) – may be in the third quarter of this year.

READ | Robot Astronaut Vyommitra To Simulate Human Functions In Space

Overall, work is on at full pace for the Gaganyaan mission, which will cost about Rs 9,000 crore, with the four test pilots undergoing special training and the launch vehicle now humanrated, which means its ability to safely carry and return its human occupants has been evaluated and confirmed.

Before the manned flight, though, there must be at least two successful unmanned flights, the first of which, if all goes well, will take place by the middle of, or end of, this year, NDTV was told.

ISRO Chairman S. Somanath addresses the 50th Convention of the All India Management Association at the Taj Palace Hotel, New Delhi, September 27, 2023.
| Photo Credit: ANI

In a crucial step in India’s ambitious programme to lift its astronauts into space, the Indian Space Research Organisation (ISRO) will test its crew escape system (CES) on October 21, 2023. The flight, from Sriharikota, will test if the CES can protect the astronauts should the launch vehicle malfunction. ISRO has designated this mission TV-D1.

According to an ISRO statement, the test will begin between 7 a.m. and 9 a.m. When the launch vehicle – fit with the crew module and the CES – reaches a velocity of 1.2 Mach and an altitude of 17 km, an abort command will be issued. The module with the CES will separate from the rocket and deploy a series of parachutes, and eventually splash down in the Bay of Bengal, where Navy personnel will recover it. The whole sequence will be uncrewed.

In the ultimate mission that will hoist the astronauts into a low-earth orbit in 2024 or 2025, the rocket will be the Launch Vehicle Mark-3 (LVM-3). But that on October 21 will be a single-stage rocket powered by liquid propellants. It was purpose-built for the TV-D1 mission and wheeled to the launch pad on October 15.

ISRO Chairman S. Somanath spoke to T.S. Subramanian for The Hindu about this test, the crew module, and preparations for the human spaceflight programme, a.k.a. ‘Gaganyaan‘. Excerpts from the interview follow:

You will be soon testing the crew escape system of the Gaganyaan project, which will ultimately take the Indian astronauts into space. Have you made the LVM-3 rocket more powerful to carry the big crew module?

Gaganyaan has many, many elements [and] components. The rocket is one part of it. The rocket LVM-3, which will take the crew to orbit, is being strengthened. The process of strengthening it is already completed. That is called the ‘human rating’ of the vehicle. It is already over. All systems and engines have been tested and confirmed. So our rocket – human-rated – is virtually completed.

There is another element called the crew module and the crew escape system. The new crew module is under development. It is being tested. There is no capability in India to manufacture it. We have to get it from outside. That work is currently going on.

We wanted a lot of technology to come from outside, from Russia, Europe, and America. But many did not come. We only got some items. That is going to take time. So we have to develop systems such as environmental control and life support systems. We call it ‘ECLSS’. That has to be developed internally. We have developed its engineering model. This is basically for controlling the temperature, oxygen, wastage process, vibration, fire hazards, and so many [other] things.

We have to make a crew escape system. That is, in the case of any damage to the rocket, the crew will [have to] be taken away from the rocket and saved.

Finally, there is a system called Integrated Vehicle Health Management System, or IVHMS, which has intelligence. It will sense an imminent failure and take abort action. It will autonomously decide. This system is under development. These are new things. We have to test all of them over a period of time.

Hundreds of tests are planned: helicopter-based tests, test-vehicle-based tests, rocket-based tests, abort tests, unmanned [tests], robotic missions, and so on. All these will be done. For the next one year to a year and a half, this will be our programme. Every day, there is some test happening. Every subsystem and component goes through hundreds of tests. When a major test happens, the press will know about it.

The test vehicle test will happen in October [i.e. October 21]. It will be an abort test. The launch vehicle will take the unmanned crew module up to a height of 17 km. Then we will say the mission is ‘aborted’. It will [have to] be saved using the crew escape system. It will bring back the module to the sea and we will collect it.

In the real mission, will three Indian astronauts go in the crew module to low-earth orbit?

Finally how many people will go, we will decide later. Not now. We don’t have to send three… We can also send one in the first mission. There is no hurry to send three. We can send one by one. Ultimately, we can send even 10 astronauts. Why limit to three? That is not a measure of anything. If you are able to send a human being into space, that is it.

It depends on our confidence at that point of time… Only when we are very sure of ourselves, we will send human beings into space. Otherwise, we will not do that. In my opinion, it will take more time than we really thought of. We are not worried about it. What we are worried about is that we should do it right the first time.

The schedule is secondary here. Even if I send a person tomorrow, I am not going to achieve anything other than claim that I have sent this person. The capability development is most important. Technology development is most important. Some claims I made last year are not important. I am focusing on capability development.