↧
Soyuz for Sale?
Reading through some stuff on the interwebs I came across some information saying that some old Soyuz Capsules are keep in a junkyard. Does anyone know if it's actually possible to purchase one of...
View ArticleDragon ballistic/drag coefficients?
I'm looking for some estimates of Dragon's ballistic or drag coefficients in its reentry (heat shield forward) configuration. Estimates for other spacecraft would be useful also as they would give me...
View ArticleSoyuz: Do you know the coefficient drag and lift to drag ratio are during...
I've been learning Python as a hobby the last two years. I like spaceflight too. Therefore I wrote this code to simulate the reentry of a Soyuz. I'd appreciate some feedback:...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
Docking orientation of Soyuz 4 and 5
I was discussing with a friend about the risk of solar panels colliding with each other if the rates imparted during undocking of similar crafts are higher. Which led to the question, then, why not...
View ArticleWhat is the propellant mass for the Soyuz descent module?
I learned some time ago that the Soyuz capsules use hydrogen peroxide as a monopropellant. I'm trying to use this fact for a chemistry question posed to my students, but I cannot find anywhere how much...
View ArticleWhere can I download the Soyuz Crew Operations Manual?
Where can I download the Soyuz Crew Operations Manual?
View ArticleWhat is the most efficient method of landing for space capsules returning to...
I have read that the Russians don't land on water because they don't have access to a large warm-water coastline like the US. US has large swaths of land and water and most US capsules (Apollo, Dragon,...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
Soyuz thruster placement
I notice that the Soyuz uses two high-thrust thrusters to translate in one direction along an axis, however some of the thrusters are located at a slight angle on either side of this axis, rather than...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
How does radar calibration using LEO orbited calibration spheres work?
On December 28, 2013 two Russian SKRL-756 calibration sphere satellites will be launched during the maiden flight of the Soyuz-2.1v, a brand new lightweight derivative of the Soyuz launch vehicle,...
View ArticleSoyuz flight books?
I have the Crew Operations Manual, but I wonder if any of the books carried onboard mentioned in it are available anywhere? There is a flight plan book, a nominal checklist, off-nominal, backup and...
View ArticleWhat happens when an RCS thruster fails to fire?
Let's imagine a UDMH/N2O4 thruster (like on a Soyuz) has an issue where the oxidizer valve/line freezes solid, blocking the flow.What happens with the fuel?The propellants are pressure fed with a...
View ArticleWhat is the propellant consumption rate for Soyuz?
At what rate does a Soyuz propulsion system (KDTU-80) consume it's propellants?I am interested in the mass consumption rate of both the main engine (e.g. an s5.80) and a single DPO thruster.Please...
View ArticleHow long does the Soyuz Instrumentation/Propulsion Module remain attached to...
Soyuz MS-22, attached to the ISS, has developed a leak in an external coolant loop in the Instrumentation/Propulsion Module. This spacecraft is needed to return the three cosmonauts who are currently...
View ArticleHow important is the radiator suspected of leaking on the Soyuz?
NASA has released a rather blithe blog about the Soyuz leak that occurredOn Wednesday, Dec. 14, an external leak was detected from the Roscosmos Soyuz MS-22 spacecraft docked to the Rassvet module on...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
What was the coolant that leaked out of the Soyuz?
What exactly is the coolant used in the Soyuz external thermal loop, the one that just leaked out of a Soyuz docked to the ISS?I checked the Soyuz Crew Operations Manual but it just calls it the...
View ArticleWill Soyuz spacecraft be able to visit the Lunar Gateway?
I mean launch from Earth, dock to the gateway and come back.
View ArticleDragon as a Lifeboat for Soyuz
The only serious alternatives I have seen reported for the current Soyuz coolant problem are to either use the existing Soyuz, hopefully patching and testing it enough while attached to ISS to be able...
View ArticleSending a Soyuz ship interplanetary - a plausible option?
This is my first time on Space Exploration SE, although I have participated quite a bit over on Worldbuilding. Anyway, as an avid sci-fi reader, I have been wondering if sending a Soyuz interplanetary...
View ArticleWhat if Soyuz re-entered with orbital module attached?
Soyuz 5 and Soyuz TMA-11 survived reentry with an attached Service Module, which simply burned off. There have been no accidents where the Orbital Module has remained attached. What would be the...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
How do items from the Russian and Soviet space programs end up in private...
A member today posted this photo showing a complete instrument panel from a Soyuz TM capsule, and a globus instrument from a Voskhod capsule:Both items are in their private collection. Only 5 Voskhod...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
What material is the wrinkled fabric(?) seen on the outside of some capsules...
For example, the silver material on the Soyuz capsuleOr the white wrapping on Canadarm and other robotic modules on the ISSMy best guess is that it's beta cloth, used for fireproofing spacesuits,...
View ArticleHow was the ventilation valve supposed to work on Soyuz 7K-T (e.g. Soyuz-11)?
I'm reading the book Salyut - The First Space Station - Triumph and Tragedy and the usage of the ventilation valve on Soyuz-11 confuses me.There were no induction or exhaust pumps that pushes air in or...
View ArticleHow is roll alignment achieved by the Soyuz docking mechanism (SSVP)
The best description of the Soyuz docking system I could find is in the proceedings of the 6th Aerospace Mechanisms Symposium (scroll to PDF page 139, labeled page 143). The alignment process is...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
Why are these Soyuz Astronauts/Cosmonauts wearing sun glasses and a blanket...
Why are these Soyuz Astronauts/Cosmonauts wearing sunglasses? Is there any scientific reason for this? (Please don't say they want to look cool) I have not seen Shuttle Astronauts wearing sunglasses...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
How much of the printed materials (manuals, instructions etc.) were allocated...
Whilst watching youtube video of an occasional Soyuz spacecraft launch (Soyuz ТМА-19М in this case), I've noticed (at 8:07) this large bundle of books.Another video of TMA-16M flight at 39:40 shows two...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
How do cosmonauts board the Soyuz spacecraft?
The Soyuz spacecraft consists of an orbital module, a descent module and a service module:(https://commons.wikimedia.org/wiki/File:Drawing-Soyuz-TMA-exp12.png)The spacecraft is fitted into a fairing...
View Articlesplashdown time Dragon vs Soyuz
Why did it take 3 days for dragon since detach from ISS till splashdown - while Soyuz would take 3 hours ?
View ArticleCould Soyuz spacecraft have saved the Columbia crew?
For the sake of the question, let's assume the STS-107 crew realizes in orbit that the heat shield is too damaged for reentry, but they realize it too late for shuttle Atlantis to rescue them in time....
View ArticleWhat is the lowest inclination orbit ever achieved by a crewed Soyuz mission?
Inspired by a recent question regarding Soyuz capsules I wondered what is the lowest inclination Soyuz mission? Highest inclination human spaceflights have been asked about here before. Soyuz 22 may...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
Eye Spy: Where are the other two (of six) vehicles docked to the ISS in this...
I spy Crew Dragon, Starliner, & two Progress (?). Where are the rest?(Credit: https://www.maxar.com/maxar-intelligence/products/non-earth-imaging)
View Article
More Pages to Explore .....