Today there were publish Progress M-22M cargo photos at Roscosmos web page.One was at: http://www.federalspace.ru/media/gallery/big/20148/2758483809.jpgWhat is it or what could it be? Any idea?Thanks for your assistance.
Quote from: SMS on 01/23/2014 04:04 pmToday there were publish Progress M-22M cargo photos at Roscosmos web page.One was at: http://www.federalspace.ru/media/gallery/big/20148/2758483809.jpgWhat is it or what could it be? Any idea?Thanks for your assistance.Propellant (UDMH) tank?From the press release"Параллельно были выполнены запланированные операции с ТГК перед его транспортировкой на заправочную станцию. Работы по заправке баков двигательной установки ТГК компонентами топлива планируется выполнить в конце текущей недели."
I've got another question. Is there any estimation of how much payload a Proton-M/Briz-M would have to GTO (1,500m/s) if launched from Kourou, for example?
http://www.energia.ru/ru/news/news-2014/im/photo_04-09-12.jpgThe valves shown in the upper right corner (3 rather large valves, not the solenods on the right end):- are they the same as on the ATV External Bay?- Are that switched or linear valves?- Does anyone know what kind of actuator is used? Solenoid/Brushless/Stepper/...- Is any Feedbackdevice embedded? (Pressure sensor, some position sensor, ...)Generally what kind of actuators are Russian/Ukrainian/... systems using on their valves for rockets, modules, engines, ...
These look to be ТМДТ valves, similar to those on Pirs.
Quote from: Danderman on 04/14/2014 06:21 pmThese look to be ТМДТ valves, similar to those on Pirs.What does the acronym stand for? Couldn't find anything.
Quote from: Danderman on 04/14/2014 06:21 pmThese look to be ТМДТ valves, similar to those on Pirs.What does the acronym stand for? Couldn't find anything.http://technomag.edu.ru/doc/50693.htmlThis site mentions brushless DC motors in use since the 60's. In Chertok's book typical valve types where mentioned (pyro, pneumatic, solenoid, stepper).
Someone has an idea of which Progress is shown in this video, at 3'18"?