Quote from: SIM city on 11/21/2011 08:26 pmhttp://www.npoenergomash.ru/about/news/news2_304.htmlEnergomash announced the shipment of two RD 171 engines to Yuzhmash - #162 for the Federal program and #163 for Sea Launch. Can anyone track these to the vehicle serials?It says RD171M which is the enhanced version
http://www.npoenergomash.ru/about/news/news2_304.htmlEnergomash announced the shipment of two RD 171 engines to Yuzhmash - #162 for the Federal program and #163 for Sea Launch. Can anyone track these to the vehicle serials?
The 5% increase is merely a reference to the engine being tested successfully at 105% of nominal thrust. The big improvement for the RD-171M is that it has a mass of a few hundred kg less than the standard variant, and also a .5 second enhancement in ISP.
Шестнадцатый пуск 27 июля 1991 г. не состоялся из-за незапуска двигателя первой ступени, в результате за несколько секунд до старта система управления прекратила набор готовностей и возвратилась в исходное состояние. Месячный разбор привел к решению вернуть этот экземпляр ракеты на завод-изготовитель - в НПО "Южное".
Maybe I am the last on this forum to discover this fact : on july 27th, 1991, there was a launch attempt of a Zenit-2 launch vehicle. This flight would have been the Return To Flight of the Zenit after the october 1990 dramatic failure.But it was cancelled and the rocket returned to Dnepropetrovsk...QuoteШестнадцатый пуск 27 июля 1991 г. не состоялся из-за незапуска двигателя первой ступени, в результате за несколько секунд до старта система управления прекратила набор готовностей и возвратилась в исходное состояние. Месячный разбор привел к решению вернуть этот экземпляр ракеты на завод-изготовитель - в НПО "Южное".http://www.buran.ru/htm/gubanov3.htm
2. 24.07.1991 за 11 минут до пуска при выполнении операции ОПУСТИТЬ СТРЕЛУ стрела ТУА задела за кабель-мачту, что привело к кратковременной расстыковке электроразъемов «Бутан» между РН и кабель-мачтой и сбою вычислительных машин борта и "наземки". Причина – был разрегулирован механизм сопряжения ТУА и блока разъемов кабель-мачты. Пуск перенесен на август, но и там ракете не повезло: произошла авария двигателя второй ступени.
Does the zenit second stage really have 2 different engines? Rd-120 and RD-8 ?If yes, How are they located physically?RD-120 is about 10 times bigger than RD-8?
Quote from: hkultala on 02/18/2012 07:54 pmDoes the zenit second stage really have 2 different engines? Rd-120 and RD-8 ?If yes, How are they located physically?RD-120 is about 10 times bigger than RD-8? RD-8http://www.yuzhnoye.comRD-120http://www.npoenergomash.ru
does anyone find it odd that energomash website has the buron in their banner? why wouldn't they use something that flew more than 1 time
Quote from: kirghizstan on 02/18/2012 08:26 pmdoes anyone find it odd that energomash website has the buron in their banner? why wouldn't they use something that flew more than 1 timeEnergia flew twice each featuring four RD-0120
Sea Launch planning upgrades to the Zenit-3SL that will increase capacity to 6400 kg and then 6700 kg to GTO. #satellite2012
Jeff Foust just tweeted from Satellite 2012 conference:https://twitter.com/#!/jeff_foust/status/179623695084564481QuoteSea Launch planning upgrades to the Zenit-3SL that will increase capacity to 6400 kg and then 6700 kg to GTO. #satellite2012Any info on how do they plan to do that? Does that involve the Fregat-SB, for example?
use of sintin propellant
Quoteuse of sintin propellantWonder if they would reintroduce Sintin with the Soyuz as well. Should be interesting. I couldn't quite find how large of an improvement it would bring
surprised they are even messing with the Zenit. It works fine, why mess with a good thing?Thought the new line was going to be from the Soyuz?
Изготовление и поставка ракеты-носителя «Зенит-М» («Зенит-2SБ») для запуска КА «Электро-Л» №3