squidf - 11/11/2007 9:00 PMAnyone hear anything about a space launch from China yesterday?
Esse - 12/11/2007 11:05 AM...second boot technology...maybe boot=ignition ?
Here is a web page of CASTC(China Aerospace Science and Technology Corporation). There is a CZ-4C, which is based on CZ-4B. It's third stage has second boot technology(I don't the translation is right or not), which greatly increase the capability of the rocket.
Liss - 12/11/2007 5:47 AMQuoteHere is a web page of CASTC(China Aerospace Science and Technology Corporation). There is a CZ-4C, which is based on CZ-4B. It's third stage has second boot technology(I don't the translation is right or not), which greatly increase the capability of the rocket.A babelfish translation gives --"CZ-4C" the rocket is in the "CZ-4B" in the rocket foundation, three stage motors use two times of starts technologies, largely sharpened the payload delivery ability.
Satori - 12/11/2007 12:11 PMQuoteLiss - 12/11/2007 5:47 AMQuoteHere is a web page of CASTC(China Aerospace Science and Technology Corporation). There is a CZ-4C, which is based on CZ-4B. It's third stage has second boot technology(I don't the translation is right or not), which greatly increase the capability of the rocket.A babelfish translation gives --"CZ-4C" the rocket is in the "CZ-4B" in the rocket foundation, three stage motors use two times of starts technologies, largely sharpened the payload delivery ability.So, we have a 'new' launch vehicle here. And the question at this time: why a new launch vehicle with certainly improved capabilities to launch YanGan-III (Jian Bing-5 (2))? The first Jan Bing-5 was launched by a CZ-4B/2...
GW_Simulations - 12/11/2007 11:20 AMHow important is the spacecraft? Maybe they're using a less important payload to test it, before they use it to launch a more important one.
Satori - 13/11/2007 12:41 PMSo, in fact CZ-4C is the new designation of CZ-4B Batch 02...
Skyrocket - 13/11/2007 9:25 AMQuoteSatori - 13/11/2007 12:41 PMSo, in fact CZ-4C is the new designation of CZ-4B Batch 02... I don't think so. The launch Vehicle of the Yaogan-1 was clearly a Version with truss-interstage, while the Yaogan-3 used one with a solid interstage and two strange bulges around stage 1 and stage 2. Both rockets used the new large fairing.The stage shown at the end of the video might be some stock footage, as it is missing the bulge seen in the launch footage.The bulges might on the other hand be the top of some peel-away cover, which become detached later in flight.
Satori - 14/11/2007 2:51 PMBut, can't the interstage be covered with the plates we see falling in the video? You can see cleary a multitude of plates falling from an area that is coherent with the interstage. The bulges, as you say, can be some sort of attaching mechanism of the plates.