Since when did I rant about your Russian copy clone 'indigenous' CE-20?
Hey, you pathetic Chinese troll, CE 20 is a 200kN gas generator based design that have nothing to do with any Russian design. Are you simply an idiot or is this CCP fed propaganda?
Btw, cryogenic engines is almost a 30 year old technology for China and you are still testing it now?
May be your CCP godfathers haven't told you that India successfully flight tested its first cryogenic engine in 2014 ?
Pathetic! CHINESE COPYCAT SUPAPOWAH MY AS*
Read my post carefully, I did mention the max your pathetic GSLV can take is 4 tonnes, which is what you repeated again before blurting out all the sh*t above. Nobody in their right minds would load a carrier up to the max, there is normally a safety factor, my guess 3.5 tonnes max for a 4 tonner?
Yeah, 'safe loading factor'
Quoting S. Ramakrishnan, the first project director GSLV Mark-III project.
"The GSLV-Mk III has the mandate to meet the requirement of deploying 4 tonnes to GTO.However, we can reasonably predict that the first development launch which is essentially to prove the vehicle will carry conservative payload of 3 to 3.5 tonnes and the subsequentoperational missions will be with full capacity. The avenues for further enhancement of LVM-3 performance beyond 4 tonnes will definitely be explored once the vehicle stabilises after a few successful missions. Inert mass reduction in the upper stage (C25) and associated assemblies will be the most attractive and efficient route with least risk in terms of mission reliability. Of course, the propellant loading of C25 itself can be further augmented beyond 27 tonnes by stretching the tankages and also requalifying the endurance of the propulsion systems for the longer burn time. Modulating the engine thrust within bounds in terms of uprating /downrating during the long-stage burn time to optimise the needed velocity gain(ΔV), as was done with GSLV CUS stage, can be another strategy to marginally stretch the performance. However, without touching the lower propulsive stages and the overall vehicle architecture the payload growth of GSLV-Mk III may not go beyond 5 tonnes to GTO. With the ongoing programme to develop a 200 tonne thrust LOX-Kerosene semi-cryo engine and subsequently a semi-cryo stage to replace the L110 core, the GTO payload is expected to touch 6 tonnes. " [old data, now 7.5 tonnes is the target]
When you said BHEL made it since 2004, what exactly is 'made' in India. Is it buying Chinese lithium battery, assemble it together, add some power controller?
Slide from a one year old presentation by ISRO chairman.
For you to produce lithium batteries, you need to produce lithium. Can you tell me which facility produces it in India?
You have lithium production facilities, because you have large lithium reserves and is one of the largest consumers of it, given your electronics industry.
The same goes for solar panels, you can buy Chinese cells and stick it together into one module and claim it's made in India. Can you tell me which facility in India produces high purity silicon ingot? In other words, your 'indigenous' satellite is most probably full of Chinese stuff. LOL!
Nice try, but we are self-sufficient on solar cells & module production. Smaller players like Maharishi solar have facilities to produce silicon ingots, while larger firms like BHEL & Lanco are setting up facilities.
BTW ISRO is setting up its own solar cell fabrication facility to reduce dependence of vendors.
When you have a 6 tonner, China would have completed DFH-5, a 9 tonner. I realise there is a pattern I am seeing here, for most technologies, India is almost always a generation or more behind China, be it aircraft, space or RIFLES.
Really ? With GSAT-11 launch happening by the end of this year, I don't see a 'decade' or 'generation' difference between I-6 K (6 tonne+ platform) and your DFH-5 (6-9 tonne). Anyway, do you think we don't have any plans for higher capacity satellites ? I believe I have told you about our plans to increase GTO payload capacity to 7.5 tonnes in the near future & eventually to more than 10 tonnes.
http://wap.business-standard.com/ar...t-indian-science-congress-116010400575_1.html
Some of the most advance ion thrusters are made in China.
Nice. Now learn what we are doing.
Development of Prototype MPD Thruster: The project has successfully developed a technology demonstrator prototype Magneto Plasma Dynamic Thruster (MPD) using Argon propellant with a specific impulse of 2500s at a thrust of 25 mN.
Presently LPSC, ISRO is actively engaged in the development of 75mN SPT to be used in its future high power communication satellites.
75 mN SPT
Thrust
Nominal mode : 75 mN ± 1 mN
Throttling mode : 50 ------ 100 mN
Mass of thruster : 8 kg ( Maximum)
Maximum thermal dissipation from thruster. : 260 Watt
250 mN SPT
Thrust
Nominal mode : 250 mN ± 15 mN
Throttling mode : 200 ------ 300 mN
Mass of thruster : 15 kg (Maximum)
Maximum thermal dissipation from thruster. : 450
So you mean your CE-20 is actually a less advanced system than CE-7.5? LOL
A staged combustion cycle engine is far more difficult than a gas generator cycle based one.
Propulsion engineering 101.
Even then we are comparing an engine which had only been flown 4 times and twice it failed.
Flown three times, had only one failure, that too in the first flight. Stop exaggerating.
The point is CE-7.5 is not a matured system and then all of sudden you move to CE-20. You are doing things half way, then now you want to develop SCE-200.
Haha, you can keep bickering as much as you want. GSLV Mk2 with Indigenous cryogenic upper stage has been declared operational, and another flight is scheduled for next month. CE-20 has undergone successfull ground tests, and will fly this December. As for the SC 200, it will be ready by end of this year and we'll have a fully tested engine & stage by 2018. I' am referring timelines set by ISRO scientists here, not some deranged propaganda bot.
SCE-200 is nothing but a Ukrainian copy, and what's more pathetic you don't even have a facility to test this copy.
Yeah right, whatever that floats your boat.
