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#200 by kanaka on 01 Aug, 2014 05:24
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Does anyone know when GSLV MK III will be launched ? It was supposed to have been launched in late July. No news of lauch appear to be coming as the month July has passed by. ISRO has to maintain the launch schedule. Please no more slippage. India has to catch up China in the field of Launch Vehicle development, let alone manned mission. Long March 3B has an established capacity for GTO Launch of 5100 Kg. Next year, china will launch Long March 5 which will be comparable to Atlas 5, Delta IV and Falcon 9 with a maximum payload capability of 14 Ton to GTO.
Chota :
Are the GSLV photos that you have attached in the previous page of the forthcoming GSLV MK 3 suborbital mission ?
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I appriciate and respect your views ---. But we need to understand that India and Isro are here not to compete with other countries. Our top priority is self sufficiency. we should not mind schedule slippage as long as purpose is served. Even it is late, it should be Perfect. I urge our scientists to take their own time and to be in hurry unless they themselves are satisfied with the progress. We cant afford failuers in hurry. -
#201 by chota on 02 Aug, 2014 01:26
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Chota :
Are the GSLV photos that you have attached in the previous page of the forthcoming GSLV MK 3 suborbital mission ?
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They are for a mockup version and not of the upcoming flight
Latest on GSLV-MKIII
"We are planning an experimental flight of GSLV Mk III with passive cryogenic stage in August this year" -
#202 by AJA on 02 Aug, 2014 10:18
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"We are planning an experimental flight of GSLV Mk III with passive cryogenic stage in August this year"
Quote from: Hindustan Times articleThe first developmental flight of GSLV-Mk III is targeted for 2016," an Isro spokesperson said.
Two different nomenclatures? An experimental flight is still a developmental flight! Or has the FIRST flight of the GSLV-Mk III architecture been pushed back to 2016? -
#203 by ss1_3 on 02 Aug, 2014 11:56
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Quote
An experimental flight is still a developmental flight! Or has the FIRST flight of the GSLV-Mk III architecture been pushed back to 2016?
No, not in ISRO terminology at least. Experimental flight would essentially validate vehicle subsystems, flight dynamics etc. It may be orbital or suborbital, but wouldn't carry any live payload. Developmental flight would follow the experimental flights after all subsystems have been verified and the vehicle is ready to carry live payloads. Note that based on performance from developmental flights, they might make adjustments in the design before declaring the vehicle "operational" after two or three successful developmental flights.
So, we'd have an experimental flight this year and the developmental one (carrying a GSAT series satellite) in 2016 or later. -
#204 by vyoma on 03 Aug, 2014 05:20
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Looking at the statement below, it seems launch may be pushed to September.
http://www.newindianexpress.com/states/tamil_nadu/Desi-GPS-Services-Likely-by-Next-Yr-Says-ISRO-Scientist/2014/08/03/article2362577.eceQuoteStating that the launch of GSLV Mark III next month would provide a greater thrust to the country’s deep-space programme, he said “We are pragmatically pushing forward the development of semi-cryogenic technology.” Demonstration of larger launch vehicles that could carry around 4 ton satellites is being planned in the next couple of months. ‘Human in Space’ programme was also gaining momentum and GSLV Mark III would accommodate a special module on experimental basis.
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#205 by antriksh on 05 Aug, 2014 14:02
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Getting ready..
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#206 by seshagirib on 05 Aug, 2014 14:47
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^ antriksh, Do you know the date of this pictures? If these are recent photos, most likely the launch will be towards year end rather than this month.
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#207 by antriksh on 05 Aug, 2014 14:59
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^ antriksh, Do you know the date of this pictures? If these are recent photos, most likely the launch will be towards year end rather than this month.
Most probably, One month old. -
#208 by input~2 on 05 Aug, 2014 17:10
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Another reference for GSLV Mk-3 X1 launch NET September
http://www.hindustantimes.com/india-news/mangalyaan-on-track-no-path-correction-in-august/article1-1247284.aspx -
#209 by abhishek on 06 Aug, 2014 04:03
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It was mentioned in the annual report that the LVM3X will be launched in the 4th quarter meaning anytime between September and December.
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#210 by AJA on 06 Aug, 2014 11:04
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^ antriksh, Do you know the date of this pictures? If these are recent photos, most likely the launch will be towards year end rather than this month.
Most probably, One month old.
javascript:alert(document.lastModified) on the Annual Report shows August 5, 2014 12:36:36 (That's usually GMT). So the report was published online at around 6 pm on August 5. Don't know how much proof-reading etc. goes into it, but I wouldn't say that the photos are that much older than the report. Especially since they'd want to demonstrate as much progress as possible. Then again, there's no "outwardly visible" stage-scale progress once assembly is complete probably. -
#211 by input~2 on 06 Aug, 2014 12:55
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It was mentioned in the annual report that the LVM3X will be launched in the 4th quarter meaning anytime between September and December.
Well, in the 2013-2014 annual report, they sayQuoteAn experimental sub-orbital flight (LVM3-X) with passive cryogenic stage is targeted during the third quarter of 2014, to validate the entire vehicle configuration during the complex atmospheric regime of flight including its controllability.
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#212 by seshagirib on 06 Aug, 2014 16:55
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^3rd quarter in a 2013-2014 annual report for an Indian organization, may be pointing to Jan-Mar 2014.
IRC the initial date for this test launch was given as Jan 2014. -
#213 by input~2 on 07 Aug, 2014 07:18
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^ I don't think so, since this 2013-2014 ISRO annual report was published on the Web on August 5, 2014
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#214 by ss1_3 on 10 Aug, 2014 15:10
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Looks like this might get pushed towards the year end:Quote
On its own part, Isro has bigger plans. Its human space flights through the experimental flight of GSLV Mark-III scheduled for "launch in the next 2-3 months".
http://www.business-standard.com/article/current-affairs/isro-set-for-next-generation-communication-satellites-114081000505_1.html -
#215 by vyoma on 20 Aug, 2014 15:26
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http://timesofindia.com/home/science/Isro-postpones-GSLV-MKIII-flight-scheduled-in-August/articleshow/40515679.cmsQuote
An Isro spokesperson, confirming the postponement, said: "...We don't have a date as of now. The priority is MOM," the spokesperson said.
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#216 by worldtimedate on 21 Aug, 2014 18:32
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Quote
http://timesofindia.com/home/science/Isro-postpones-GSLV-MKIII-flight-scheduled-in-August/articleshow/40515679.cms
An Isro spokesperson, confirming the postponement, said: "...We don't have a date as of now. The priority is MOM," the spokesperson said.
I knew that this would happen. I mean ISRO would postpone the launch of GSLV MKIII to focus on MOM. ISRO can't maintain the launch schedule. For the last 2 years, ISRO's main objective was to launch an inter-planetary mission like MOM without having a more powerful Rocket GSLV MK-III or GSLV MK-II at its disposal, while not giving more priority to GSLV MK III development.
How can the current ISRO chairman be made to understand that ISRO needs a more powerful rocket like GSLV MK-III to launch communication satellites in the 3 or 4 ton class, let alone over 5 or 6 ton class communication satellites which would be more common event in the foreseeable future ? Even Bolivia has a communication satellite in 5.5 ton class, launched and developed by China.
Japanese Launch Vehicle HIIA has an excellent record of 21 successful launches ( out of 22 ) in the category of 4.1 to 6 ton in the Geostationary Transfer Orbit. Japan's new launch vehicle HIIB has 4 out of 4 successful launches in the 8 ton GTO category. 2 of the last launches by HIIB were to the International Space Station ( ISS ) with HII Transfer Vehicle ( HTV ). With HIIB, Japan can launch 2 heavy communication satellites of 4 ton at one shot.
How can Dr. Radhakrishna dream of earning revenue through ANTRIX by launching communication satellites ? Firstly GSLV MK II has not been operationalized. It needs at least 1 more successful launch. Then GSLV MK II will be able to launch 2 ton communication satellite, whereas many countries these days even the developing countries have their communication satellites launched in the 3 to 3.5 ton category. ISRO doesn't have achieved that category. The kind of rapid success of launching satellites at low cost SpaceX has achieved at shot period of time will make ISRO's dream of making forays into the launch market of communication satellites more and more difficult. But is dr. Radhakrishna listening ?
GSLV MK III was supposed to have been launched in 2012. He is hesitant to take risks. Had ISRO not pushed the development of PSLV in the 80s, despite 2 repeated failures of ASLV, ISRO would not have its workhorse PSLV. Two more months will pass by with MOM. It seems to me that GSLV MK III does not seem to be the top priority of Dr. Radhakrishnan. The bottom line is that he is a bit paranoid and therefore he is taking the path of less risk approach. If such sluggish approach continues, I do not see GSLV MK III not being operationalized before 2020, thus putting to rest ISRO's plan to send Indians to the space before 2020.
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#217 by ss1_3 on 21 Aug, 2014 21:36
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An Isro spokesperson, confirming the postponement, said: "...We don't have a date as of now. The priority is MOM," the spokesperson said.
This is a bit hard to digest. The two missions are quite independent of each other. If my understanding is correct, ISTRAC team would be responsible for carrying out MOI manoeuvres. There has to be a separate team involved in LVM3 development and launch operations. Further, as it's a suborbital flight, it shouldn't require any assistance from ISTRAC. So, why would they prioritize one mission over another. I think they should openly admit about the challenges that they face here which are responsible for postponement.
@--- :
You are being quite unfair here. What you don't seem to realize is that it takes several years of development efforts and a lot of investment to master cryogenic technology. The space agencies that you're talking about have got a lot of backing in terms of investment and technology (for eg. SpaceX, NASA pumps in both money and the minds to get their projects going). You just don't seem to have any idea about this and making a lot of wrong presumptions like failed leadership at ISRO and what not. I'd suggest that you read A Brief History of Rocketry in ISRO to be able to appreciate the efforts spent by ISRO scientists towards realizing PSLV and GSLV projects. -
#218 by IslandPlaya on 21 Aug, 2014 21:39
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SpaceX don't use cryogenic engines. If by cryogenic you mean the use of LH2.
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#219 by RonM on 21 Aug, 2014 21:44
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SpaceX don't use cryogenic engines. If by cryogenic you mean the use of LH2.
LOX is cryogenic.