what's the difference between Ekspress-1000AM platform, which is the one used by Luch-5B according to Gunter, and the Ekspress-1000A platform?
the difference between all the versions of Ekspress series satellite platforms, including Ekspress-1000A, Ekspress-1000AM, Ekspress-1000K, Ekspress-1000N, Ekspress-1000NT, Ekspress-1000NTA, Ekspress-1000NTB and Ekspress-1000SH. All I know is that the A and K versions may be similar lighter ones, N versions being more powerful ones and the developing SH versions being heavier ones
Excuse me. Could I ask what's the difference between the Ekspress-1000A platform and the Ekspress-1000K platform, which is referred to in the russian wikipedia for Luch-5V? Besides, what's the difference between Ekspress-1000AM platform, which is the one used by Luch-5B according to Gunter, and the Ekspress-1000A platform? In all, could I ask the difference between all the versions of Ekspress series satellite platforms, including Ekspress-1000A, Ekspress-1000AM, Ekspress-1000K, Ekspress-1000N, Ekspress-1000NT, Ekspress-1000NTA, Ekspress-1000NTB and Ekspress-1000SH. All I know is that the A and K versions may be similar lighter ones, N versions being more powerful ones and the developing SH versions being heavier ones. Thanks very much~~
Quote from: siweifdu on 04/21/2014 12:44 pmwhat's the difference between Ekspress-1000AM platform, which is the one used by Luch-5B according to Gunter, and the Ekspress-1000A platform?Luch-5B was the lower satellite in launch with Yamal-300K, so the satellite was equipped by central cylindrical isogrid structure. Luch-5A was and Luch-5V will be the upper satellite in launch with Amos-5 and KazSat-3.Quote from: siweifdu on 04/21/2014 12:44 pmthe difference between all the versions of Ekspress series satellite platforms, including Ekspress-1000A, Ekspress-1000AM, Ekspress-1000K, Ekspress-1000N, Ekspress-1000NT, Ekspress-1000NTA, Ekspress-1000NTB and Ekspress-1000SH. All I know is that the A and K versions may be similar lighter ones, N versions being more powerful ones and the developing SH versions being heavier onesYes, the difference are only in dimensions, weight, payload power and quantity of antennas and transponders.P.S.: It is not N, but H at the name of Ekspress platform.
Quote from: siweifdu on 04/21/2014 12:44 pmExcuse me. Could I ask what's the difference between the Ekspress-1000A platform and the Ekspress-1000K platform, which is referred to in the russian wikipedia for Luch-5V? Besides, what's the difference between Ekspress-1000AM platform, which is the one used by Luch-5B according to Gunter, and the Ekspress-1000A platform? In all, could I ask the difference between all the versions of Ekspress series satellite platforms, including Ekspress-1000A, Ekspress-1000AM, Ekspress-1000K, Ekspress-1000N, Ekspress-1000NT, Ekspress-1000NTA, Ekspress-1000NTB and Ekspress-1000SH. All I know is that the A and K versions may be similar lighter ones, N versions being more powerful ones and the developing SH versions being heavier ones. Thanks very much~~Luch-5A was at first to be launched on a Soyuz-2-1B rocket. It was based on the Ekspress-1000A platform; intended to be similar in size to GLONASS-K.The next size up is the Ekspress-1000H, Ekspress-1000HT, Ekspress-1000HTA and Ekspress-1000HTB platforms (I write this not using cyrillic because I am still trying to figure out what alphabet to use). They feature a central load carrying lattice cylinder structure.This cylinder allows for paired, dual launches. At one point Telkom-3 and Yamal-300K were to be launched together. However with the failure of JCSAT-11, the more energy flight path was closed and Proton lost the capability to launch the two together.Pairing the smaller Luch-5A with a larger Ekspress-1000H based satellite was the chosen option. However problem with Yamal-300K was that it features antennas on top, so could not support a smaller satellite on top. For this launch Luch-5B was redesigned with a central load carrying cylinder; a platform referred to as Ekspress-1000AM.Ekspress-1000K is a smaller satellite platform, seems to be the replacement for Khrunichev’s Yakhta. Both have been offered by ILS as potential dual launch partners to take up spare lift capacity of the Proton.Ekspress-1000SH has not flown so far. Does not feature a central tube.http://assi.or.id/download/APSAT2013/PresentationFile/Dmitry%20Latyshev_ISS%20Reshetnev.pdfhttp://forum.nasaspaceflight.com/index.php?topic=32423.0
Proton-M rocket was transported to the launch pad.http://www.federalspace.ru/20486/ (in Russian)
The next size up is the Ekspress-1000H, Ekspress-1000HT, Ekspress-1000HTA and Ekspress-1000HTB platforms (I write this not using cyrillic because I am still trying to figure out what alphabet to use). They feature a central load carrying lattice cylinder structure.
Quote from: Stan Black on 04/21/2014 01:43 pmThe next size up is the Ekspress-1000H, Ekspress-1000HT, Ekspress-1000HTA and Ekspress-1000HTB platforms (I write this not using cyrillic because I am still trying to figure out what alphabet to use). They feature a central load carrying lattice cylinder structure.The designations seem to be somewhat confusing. In russian texts, the names are given (e.g. http://www.iss-reshetnev.ru/?cid=prj_express_at) in cyrillic as «Экспресс-1000H», «Экспресс-1000К», «Экспресс-1000HTB» (transcribed under premission, that cyrilic aphabet is used and not a mixup, as Ekspress-1000N, Ekspress-1000K, Ekspress-1000NTV). In english texts (e.g. http://www.iss-reshetnev.com/?cid=prj_express_at), we have Express-1000H, Express-1000K, Express-1000HTB.