ISRO General News and Updates

[Swesh]

Was scheduled for this October. Must have slipped to November only in favour of OneWeb launch as they were about ready in September.

Would be happening only on flp since slp is used lvm3

 

[Varoon2]

There are social media reports eg Reddit, that refer to the PSLV C54 vehicle being assembled. Can't vouch for the accuracy.

 

[Swesh]

There are social media reports eg Reddit, that refer to the PSLV C54 vehicle being assembled. Can't vouch for the accuracy.

Link to conversation

 

[Indx TechStyle]

Would be happening only on flp since slp is used lvm3

Any update on TLP though?

 

[Tiwariji]

 

[Tiwariji]

Beautiful

 

[Swesh]

Any update on TLP though?

https://timesofindia.indiatimes.com...d-spaceport/articleshow/94888126.cms?from=mdr
1.This is latest article here annadurai sir said that work is about to start and land acquisition is completed
2. Among redditer's comment r/ramanhome comments that only recently they have completed land acquisition

 

[LondonParisTokyo]

Is LVM3 cryogenic and does this demonstrate India has definitive cryogenic engines?

 

[Okabe Rintarou]

https://timesofindia.indiatimes.com...d-spaceport/articleshow/94888126.cms?from=mdr
1.This is latest article here annadurai sir said that work is about to start and land acquisition is completed
2. Among redditer's comment r/ramanhome comments that only recently they have completed land acquisition

Any update on TLP though?

Wasn't TLP ditched and Gaganyaan to happen from SLP only? Did they change the plan.

Is LVM3 cryogenic and does this demonstrate India has definitive cryogenic engines?

We have two cryogenic engines designed and developed in India: CE-20 and CE-7.5:-

In this launch, LVM-3/GSLV Mk-III upper stage is cryogenic powered by CE-20 cryogenic engine with 20 ton-force of thrust and gas generator cycle based. One of the largest upper stage cryogenic engines in the world. 434 seconds vacuum specific impulse. 4 launches till date, all successful.

GSLV Mk-II upper stage is cryogenic powered by CE-7.5 cryogenic engine with 7.5 ton-force of thrust and staged combustion cycle based. 454 seconds vacuum specific impulse. Launch success has been 6 successful operations of CE-7.5 out of 8 launches. Only on first attempt in 2010 the engine failed, has been successful in all launches since then. However on most recent launch, leak in cryogenic storage tanks meant failure of the rocket, so the engine didn't have a chance to even start, leading to second failure.

 

[Haldilal]

Is LVM3 cryogenic and does this demonstrate India has definitive cryogenic engines?

Ya'll Nibbiars we have the world most powerful Upper Stage Cryogenic Engine.

 

[Swesh]

Wasn't TLP ditched and Gaganyaan to happen from SLP only? Did they change the plan.


We have two cryogenic engines designed and developed in India: CE-20 and CE-7.5:-

In this launch, LVM-3/GSLV Mk-III upper stage is cryogenic powered by CE-20 cryogenic engine with 20 ton-force of thrust and gas generator cycle based. One of the largest upper stage cryogenic engines in the world. 434 seconds vacuum specific impulse. 4 launches till date, all successful.

GSLV Mk-II upper stage is cryogenic powered by CE-7.5 cryogenic engine with 7.5 ton-force of thrust and staged combustion cycle based. 454 seconds vacuum specific impulse. Launch success has been 6 successful operations of CE-7.5 out of 8 launches. Only on first attempt in 2010 the engine failed, has been successful in all launches since then. However on most recent launch, leak in cryogenic storage tanks meant failure of the rocket, so the engine didn't have a chance to even start, leading to second failure.

It had cus-25 not cus-20

 

[Okabe Rintarou]

It had cus-25 not cus-20

25 ton was the propellant loading right? I was talking about the engine. Not the stage.

 

[Swesh]

Wasn't TLP ditched and Gaganyaan to happen from SLP only? Did they change the plan.


We have two cryogenic engines designed and developed in India: CE-20 and CE-7.5:-

In this launch, LVM-3/GSLV Mk-III upper stage is cryogenic powered by CE-20 cryogenic engine with 20 ton-force of thrust and gas generator cycle based. One of the largest upper stage cryogenic engines in the world. 434 seconds vacuum specific impulse. 4 launches till date, all successful.

GSLV Mk-II upper stage is cryogenic powered by CE-7.5 cryogenic engine with 7.5 ton-force of thrust and staged combustion cycle based. 454 seconds vacuum specific impulse. Launch success has been 6 successful operations of CE-7.5 out of 8 launches. Only on first attempt in 2010 the engine failed, has been successful in all launches since then. However on most recent launch, leak in cryogenic storage tanks meant failure of the rocket, so the engine didn't have a chance to even start, leading to second failure.

We already have two lp FLP and SLP at st Shriharikota third one is under construction in Tamilnadu as it will save us from dogleg maneuver thus will save precious fuel it will be used to launch sslv in future as sslv launch will be shift to tamilnadu after completion to spaceport

 

[Okabe Rintarou]

We already have two lp FLP and SLP at st Shriharikota third one is under construction in Tamilnadu as it will save us from dogleg maneuver thus will save precious fuel it will be used to launch sslv in future as sslv launch will be shift to tamilnadu after completion to spaceport

Oh. I thought TLP was the old plan to have third one at SDSC for Manned Missions. Thought they'd call the Tamil Nadu launch pad as FLP of that new spaceport. Isn't that how it is in other countries with multiple spaceports?

 

[Vamsi]

Oh. I thought TLP was the old plan to have third one at SDSC for Manned Missions. Thought they'd call the Tamil Nadu launch pad as FLP of that new spaceport. Isn't that how it is in other countries with multiple spaceports?

SDSC 3rd LP will come in Late 2020s or early 2030s, because 1st & 2nd LPs can't launch NGLV ..
here is the render of 3rd LP

 

[Vamsi]

This explains why TVD-1 slipped to Jan 2023, It is also supposed to be launched from FLP....My guess for upcoming launches

Nov 2022 - PSLV-C54
Dec 2022 - SSLV-D2
Jan 2023 - TVD-1
Feb 2023 - PSLV/Aditya-L1
Feb/March 2023- LVM3-M3/Oneweb India-2
June/July 2023 - LVM3-M4/CY-3
2 GSLV-Mk2s possible in 2023 with NVS-1 & INSAT-3DS

 

[Swesh]

Oh. I thought TLP was the old plan to have third one at SDSC for Manned Missions. Thought they'd call the Tamil Nadu launch pad as FLP of that new spaceport. Isn't that how it is in other countries with multiple spaceports?

Though launchpad in Tamilnadu was also purposed by nabinarayan back then commies instigated fisherman to foil that plan so I always had doubt in land acquisition of this launchpad

 

[Swesh]

Erukkandurai

Erukkandurai · Tamil Nadu 627106, India

Tamil Nadu 627106, India

maps.app.goo.gl

@omaebakabaka

 

[Swesh]

@omaebakabaka

@Okabe Rintarou

 

[Swesh]