ISRO General News and Updates

[Haldilal]

Ya'll Nibbiars

 

[Swesh]

Right now timeline for first engine test sce-200of 2027-28 if no further delays due to ukrain crisis or schedule of gaganyan. My openion is that we are stuck with gslv mk3 for atleast a decade and a lot of people agree with me in my circle

My suggestion is that in parallel to gaganyan endeavour we should make more agile spacecraft within 4ton category and augmentation of lpsc should be first focus that is only hinderence in continuation of both gaganyan and other projects. If capacity building of lpsc is done appropriately we could still achieve a lot despite of not having a heavy launcher

 

[Swesh]

It's a tech demonstrater just like X-37B

And by the way PSLV c53 will probably slip to April due to non availability of oceansat-3 quoted by unconfirmed source

 

[Vamsi]

And by the way PSLV c53 will probably slip to April due to non availability of oceansat-3 quoted by unconfirmed source

what about SSLV then??

 

[Swesh]

what about SSLV then??

Don't know both of spacecraft will belaunch on different launchpad PSLV on SLP and sslv FLP so there should be no problem of delay in sslv due to non availability launch pad

 

[Swesh]

Again 3rd LP has nothing to do with Gaganyaan. When former ISRO chairman AS Kiran Kumar was asked about 3rd LP, He said as of now the existing 2 launch pads are enough.

Land Acquisition for ISRO’s Second Spaceport Reaches Final Stage – The Wire Science

science.thewire.in

 

[Swesh]

Again 3rd LP has nothing to do with Gaganyaan. When former ISRO chairman AS Kiran Kumar was asked about 3rd LP, He said as of now the existing 2 launch pads are enough.

This is last news report on third launch pad. I usually follow one project and all related news articles on though restrain myself from quoting news articles since many of them are baised or motivated reather believe on official document more

 

[Swesh]

ISRO calls private entities to set up new launch sites

Currently, the Satish Dhawan Space Centre at Sriharikota is the country’s only spaceport operated by the Indian Space Research Organisation. Another spaceport is under development at Tamil Nadu’s Toothukudi.

www.google.com

 

[amit6371]

how much time does it take to design such engines ??
considering there are now modern tech (computer sims,3d modelling...................)

Years. SpaceX got all the engines drawing from NASA as NASA invested $500 milliun in Spacex as a replacement for Soyuz. Manufacturing tools can ease the manufacturing as complicated parts can be built in minimum pieces but the design phase requires hell lot of thermodynamic studies.

 

[Akula]

The first one is just an experiment I hope. Recovering the 3rd Stage but ditching the 1st and 2nd stage is pretty dumb lol..

There are two versions of HLV design which ISRO has planned for now. One is recoverable and other is not.

 

[Akula]

20T methalox engine tested. 20T means 200KN. Equivalent to CE-20 engine

SC120 is based on ISRO's own design?

 

[THESIS THORON]

is sce 200 upgraded variant or is same design purchased from Ukrainians ??

considering that there might be some progress in the field of rocket propulsion.

 

[Vamsi]

SC120 is based on ISRO's own design?

SC120 is the stage & yes it's ISRO's own design

 

[Vamsi]

is sce 200 upgraded variant or is same design purchased from Ukrainians ??

considering that there might be some progress in the field of rocket propulsion.

SCE-200 is based on RD-810, but it will be far better than RD-810.

 

[THESIS THORON]

SCE-200 is based on RD-810, but it will be far better than RD-810.

chamber pressure of rd 810 is around 18 mpa (150 bar) and chamber pressure of raptor is 300 bar

hmm, sce 200 might have higher chamber pressure

 

[Maveli]

SCE-200 is based on RD-810, but it will be far better than RD-810.

How will it be better? More thrust or higher Isp or both?

 

[no smoking]

chamber pressure of rd 810 is around 18 mpa (150 bar) and chamber pressure of raptor is 300 bar

hmm, sce 200 might have higher chamber pressure

1. 18 MPA = 180 Bar
2. SCE-200 has the same chamber pressure.

 

[Vamsi]

@Tactical Doge nibba...pls translate this video

 

[TopWatcher]

@Tactical Doge nibba...pls translate this video

My notes in English.

• Congratulations on PSLV-C52 launch
• Thinking about how to return to launch after COVID-19
• PSLV C-53 launch
  • next- within 2-3 months.
  • exact date will be known later
• SSLV
  • to launch 500 kg payload to LEO with lot of commercial possibilities.
  • all (3) solid stage with a 4th stage liquid velocity trimming module.
  • all important tests completed. vehicle being integrated.
  • Launch from Sriharikota
• Gaganyaan
  • How crew module can be separated from the launch vehicle in flight.
  • For this, it is not necessary to use the GSLV Mk III
  • Test Vehicle - Vikas engine - derived from PS2 and L40 strap-on engine
  • single stage vehicle will be used for creating various conditions for aborting Crew Module, in flight.
  • 1-2 flights this year. I think the implication was there could be more Test Vehicle flights.
  • to understand the Crew Module capability of in-flight abort.
  • We get confidence to make sure that crew can escape in-flight.
  • TV to be developed as a multi-purpose test platform.
    • will be used to test air-breathing propulsion, in RLV-TD for creating flight conditions.
    • TV to be used also to demonstrate stage recovery.
• HSLV
  • GSLV Mk-III converted to human-rated launch vehicle.
  • Satellite and payload fairing replaced with Crew Escape System and Orbital Module.
  • Vehicle undergoing various tests. Hardware being realised.
  • Each stage needs to be analysed for failure possibilities and redundancy being provided.
  • Health parameters to be checked so that abort is done at appropriate time. For this, Vehicle Health Monitoring System being developed.
• HSLV Launch Pad
  • converting second launch pad.
  • can launch both GSLV Mk III and human rated GSLV Mk III.
  • escape chutes being developed.
  • testing and accessories to the launch pad being added
• Astronaut training
  • 4 astronauts in Bangalore at HSFC.
  • Russian - generic training
  • Indian training
    • familiarising with human-rated GSLV Mk III and Gaganyaan Orbital Module
    • theory, practical, mental fitness, physical fitness, etc.
    • training to take 1.5 years.
    • understand accessible areas.
    • simulator training.- simulators are getting ready
    • temporary facility being developed in Bangalore. to be inaugurated soon.
• Collaborationg with Glavkosmos, other collaborations?
  • This is truly a national programme.
  • we are tying up with industries, academia, national organisations where technology is already available.
    • DRDO lab in Agra providing parachutes.
    • DFRL, Mysore providing - food
    • signed almost 12 MoUs with national labs.
• Technology Transfer to the public in the future from human spaceflight
  • Life Support System in capsule
    • living at high altitudes
    • inflatable habitat
    • portable life support system
    • flight suits
    • many things that we cannot foresee.
• Private ecosystem
  • Happening across the world especially in America
  • Even providing human spaceflight and travel to Mars
  • Need to increase private participation in the space programme.
  • Mechanisms like IN-SPACe will help.
  • Incubators, access to ISRO facilities
• Are companies like Skyroot etc considered competitors?
  • No.
  • Encourage private ecosystem to lower cost, technology innovation etc.
  • Hand hold them to help them in achieving these.
  • Help in reviews, provide test facilities, research
  • Increase share in space economy.
  • ISRO to do science missions
• Chandrayaan 3
  • Will happen this year.
  • VSSC responsible GSLV Mk III.
  • ensuring VSSC will deliver on time.
• Heavy-lift launch vehicle
  • Studies on going. Not yet in project stage.
  • Based on ISRO, industry capabilities.
  • These are known to the public when a proposal is sent to the government.
• GSLV Mk II
  • failure cause has been isolated.
  • Working on fixing this issue. Implementation in progress.
  • NAVIC - IRNSS launch will happen on GSLV Mk II this year after fixing this issue.

 

[TopWatcher]

• NISAR updates
  • work in progress.
  • ISRO's main contribution is also the GSLV Mk II.
  • Work in progress at VSSC on the launch vehicle to launch on time
• Updates on SDSC-SHAR
  • Capability to launch multiple rockets simultaneously in last stages of construction.
  • Capability to increase the number of PSLV launches is also in the last few stages of development.
  • Vehicle Assembly of GSLV Mk III from two locations capability being built.
• Science missions
  • Aditya-L1 - to be launched this year. second half of this year.
  • Launch vehicle preparation in progress in VSSC.
• Change in naming conventions of satellites (EOS, CMS etc.) for better monitoring.
• Semi-cryogenic engine
  • For uprating capability of GSLV Mk-III.
  • LPSC is developing this stage and testing facility.
• Vyommitra
  • will fly on Gaganyaan first uncrewed mission launch.
  • Undergoing testing and space qualification for launch.
  • Robotics is important. Co-traveller with humans on interplanetary flights.
  • Hence, we are testing and developing this robotic capability.

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