ISRO successfully launches India’s heaviest rocket GSLV Mark-III

December 18, 2014

Sriharikota, Dec 18: India Thursday moved forward in rocket technology with the successful flight testing of its heaviest next generation rocket and the crew module.

fire
Precisely at 9.30 a.m., the 630 tonne Geosynchronous Satellite Launch Vehicle-Mark III (GSLV-Mark III) standing 43.43 metre tall freed itself from the second launch pad and with a reverberating deep throated roar, rose into the sky.

With a thick orange flame at its tail, the expendable rocket ascended towards the heavens with one way ticket as its design life span is just around five minutes.

The Rs.155 crore mission has twin purposes. The main purpose is to test the rocket's atmospheric flight stability with around four tonne luggage.

The second and incidental objective is to study the re-entry characteristics of the crew module-called Crew Module Atmospheric Re-entry Experiment - its aero braking and validation of its end-to-end parachute system.

According to an Indian Space Research Organisation (ISRO) official, it will be of the size of a small bedroom and can accommodate two to three people. Just over five minutes into the flight, the rocket spat out the giant cup cake shaped 3.7-tonne crew module at an altitude of 126 km.

The crew module then descended towards Earth at a high speed. The speed was moderated remotely manipulating its on-board motors till 80 km above the earth.

From here the ballistic re-entry into the atmosphere began while the on-board thrusters were shut down. The crew module's heat shield was expected to experience a heat of around 1,600 degrees centigrade.

At an altitude of around 15 km, the module's apex cover separated and the parachutes were deployed.

The module soft crashed in Bay of Bengal near Andaman and Nicobar Islands.

From here, the crew modules multi-modal and multi-state transport journey would begin.

A naval ship tracking the signals from the module will pick up the module and deliver it at the Ennore Port near Chennai in Tamil Nadu. From there it will be brought to Sriharikota in Andhra Pradesh and then it will be taken to the Vikram Sarabhai Space Centre, Thiruvanthapuram in Kerala.

At the mission control centre there was no control on ISRO's scientists happiness at the success.

Speaking about the mission, ISRO's Chairman K. Radhakrishan said: "India started development of the rocket a decade ago and today completed the first experimental flight.

"The performance of the solid and the liquid engines were as expected," he said. "The unmanned crew module splashed in Bay of Bengal as expected," he added.

S. Somanath, project director of GSLV Mark III, said: "India now has a new launch vehicle. The payload capability of the Indian rocket has been enhanced significantly."

The Thursday mission success is sweet for the Indian space fraternity as it comes after successful launch of Mars Orbiter last year and older version of GSLV rocket powered by its own cryogenic engine early this year.

A cryogenic engine is more efficient as it provides more thrust for every kilogram of propellant burnt.

This was the second mission of GSLV rocket during the last four years after two such rockets failed in 2010. The GSLV-Mark III is designed to be a three stage/engine rocket with a lift off weight of 630 tonnes.

The first stage comprises two identical S-200 large solid boosters with 200 tonne solid propellant, that are strapped on to the second stage, the L110 re-startable liquid stage.

The third stage/engine is the cryogenic. For the country ISRO perfecting the cryogenic engine technology is crucial as precious foreign exchange can be saved by launching communication satellites by itself.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
December 5,2025

indigoCEO.jpg

New Delhi, Dec 5: IndiGo CEO Pieter Elbers issued a public apology this evening after more than a thousand flights were cancelled today, making it the "most severely impacted day" in terms of cancellations. The biggest airline of the country cancelled "more than half" of its daily number of flights on Friday, said Elbers. He also said that even though the crisis will persist on Saturday, the airline anticipates fewer than 1,000 flight cancellations.

"Full normalisation is expected between December 10 and 15, though IndiGo cautions that recovery will take time due to the scale of operations," the IndiGo CEO said. 

IndiGo operates around 2,300 domestic and international flights daily.

Pieter Elbers, while apologising for the major inconvenience due to delays and cancellations, said the situation is a result of various causes.

The crisis at IndiGo stems from new regulations that boost pilots' weekly rest requirements by 12 hours to 48 and allow only two night-time landings per week, down from six. IndiGo has attributed the mass cancellations to "misjudgment and planning gaps".

Elbers also listed three lines of action that the airline will adopt to address the issue.

"Firstly, customer communication and addressing your needs, for this, messages have been sent on social media. And just now, a more detailed communication with information, refunds, cancellations and other customer support measures was sent," he said.

The airline has also stepped up its call centre capacity.

"Secondly, due to yesterday's situation, we had customers stranded mostly at the nation's largest airports. Our focus was for all of them to be able to travel today itself, which will be achieved. For this, we also ask customers whose flights are cancelled not to come to the airports as notifications are sent," the CEO said.

"Thirdly, cancellations were made for today to align our crew and planes to be where they need to start tomorrow morning afresh. Earlier measures of the last few days, regrettable, have proven not to be enough, but we have decided today to reboot all our systems and schedules, resulting in the highest numbers of cancellations so far, but imperative for progressive improvements starting from tomorrow," he added.

As airports witnessed chaotic scenes, the Directorate General of Civil Aviation (DGCA) stepped in to grant IndiGo a temporary exemption from stricter night duty rules for pilots. It also allowed substitution of leaves with a weekly rest period. 

Civil Aviation Minister Ram Mohan Naidu has said a high-level inquiry will be ordered and accountability will be fixed.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
December 13,2025

New Delhi: School-going children are picking up drug and smoking habits and engaging in consumption of alcohol, with the average age of introduction to such harmful substances found to be around 13 years, suggesting a need for earlier interventions as early as primary school, a multi-city survey by AIIMS-Delhi said.

The findings also showed substance use increased in higher grades, with grade XI/XII students two times more likely to report use of substances when compared with grade VIII students. This emphasised the importance of continued prevention and intervention through middle and high school.

The study led by Dr Anju Dhawan of AIIMS's National Drug Dependence Treatment Centre, published in the National Medical Journal of India this month, looks at adolescent substance use across diverse regions.

The survey included 5,920 students from classes 8, 9, 11 and 12 in urban government, private and rural schools across 10 cities -- Bengaluru, Chandigarh, Delhi, Dibrugarh, Hyderabad, Imphal, Jammu, Lucknow, Mumbai, and Ranchi. The data were collected between May 2018 and June 2019.

The average age of initiation for any substance was 12.9 (2.8) years. It was lowest for inhalants (11.3 years) followed by heroin (12.3 years) and opioid pharmaceuticals (without prescription; 12.5 years).

Overall, 15.1 per cent of participants reported lifetime use, 10.3 per cent reported past year use, and 7.2 per cent reported use in the past month of any substance, the study found.

The most common substances used in the past year, after tobacco (4 per cent) and alcohol (3.8 per cent), were opioids (2.8 per cent), followed by cannabis (2 per cent) and inhalants (1.9 per cent). Use of non-prescribed pharmaceutical opioids was most common among opioid users (90.2 per cent).

On being asked, 'Do you think this substance is easily available for a person of your age' separately for each substance category, nearly half the students (46.3 per cent) endorsed that tobacco products and more than one-third of the students (36.5 per cent) agreed that a person of their age can easily procure alcohol products.

Similarly, for Bhang (21.9 per cent), ganja/charas (16.1 per cent), inhalants (15.2 per cent), sedatives (13.7 per cent), opium and heroin (10 per cent each), the students endorsed that these can be easily procured.

About 95 per cent of the children, irrespective of their grade, agreed with the statement that 'drug use is harmful'.

The rates of substance use (any) among boys were significantly higher than those of girls for substance use (ever), use in the past year and use in the past 30 days. Compared to grade VIII students, grade IX students were more likely, and grade XI/XII students were twice as likely to have used any substance (ever).

The likelihood of past-year use of any substance was also higher for grade IX students and for grade XI/XII students as compared to grade VIII students.

About 40 per cent of students mentioned that they had a family member who used tobacco or alcohol each. The use of cannabis (any product) and opioid (any product) by a family member was reported by 8.2 per cent and 3.9 per cent of students, respectively, while the use of other substances, such as inhalants/sedatives by family was 2-3 per cent, the study found.

A relatively smaller percentage of students reported use of tobacco or alcohol among peers as compared to among family members, while a higher percentage reported inhalants, sedatives, cannabis or opioid use among peers.

Children using substances (past year) compared to non-users reported significantly higher any substance use by their family members and peers.

There were 25.7 per cent students who replied 'yes' to the question 'conflicts/fights often occur in your family'. Most students also replied affirmatively to 'family members are aware of how their time is being spent' and 'damily members are aware of with whom they spend their time'.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.