Questions tagged [space-shuttle]

The Space Shuttle was a crewed, partially reusable low Earth orbital spacecraft operated by NASA from 1981 to 2011.

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Identifying attitude control mode in GNC software?

Launch vehicles will generally have multiple multiple attitude control modes. At launch, the engine-gimballing thrust-vectoring system is in charge. In orbit, the reaction control system is (at least ...
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252 views

When were Shuttle crew absolutely required to have their seat belts fastened and their tray tables in their full upright position?

@OrganicMarble's comment says: Rhea Seddon describes in her bio standing and walking around in the shuttle middeck in the early part of entry when g's were low. "...I had this funny sensation of ...
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Why didn’t the space shuttle external tank have pressure-relief vents?

During a space shuttle abort, it would have been vitally important not to allow the vehicle to droop below 265 kilofeet during powered flight, as excessive aerodynamic heating below 265 kft would have ...
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421 views

Footage of Space Shuttle astronauts during launch and reentry

Is there readily available video of Space Shuttle missions showing the crew: During the entire time period from ignition to shortly after the shuttle has passed through planet Earth's atmosphere? ...
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How were winds measured for ascent trajectory calculations and checks for the Space Shuttle?

The Space Shuttle's ascent trajectory was calculated on the day of launch based on measured winds to avoid structural load exceedances. The winds continued to be measured until shortly before launch ...
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177 views

Would the space shuttle do a yaw maneuver to avoid the tower?

I read some rockets do a small yaw maneuver of about a degree immediately after T0 to avoid the tower in case of wind gusts. Would the space shuttle ever do such a maneuver? Did it? I read also that ...
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464 views

Space Shuttle RTLS in 3-engine-out: what does it use for propulsion?

For a three-engine-out abort, there's a couple of great diagrams provided in the answer at https://space.stackexchange.com/a/39733/11532 showing different abort contingencies. One contingency plan is ...
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155 views

Identify this astronaut and shuttle mission

After about 02:00 in the Kinematic video SpaceX Delivers Critical Docking Adapter for NASA to the ISS the astronaut says: You know the Space Shuttle’s been with us,...
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182 views

How is the minimum number of TDRS satellites needed for a space station program?

What is the minimum number of retransmission satellites that you would need to assist your LEO space station program - to provide a full time coverage to ensure a total communication with the space ...
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149 views

Gimbal Check: Before or After Engine Ignition?

Is the engine gimbal check done before or after ignition? Also curious: How many seconds does the check take? What does it consist of? Do they gimbal each engine separately, or do they gimbal all ...
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How was each Space Shuttle contingency rescue missions numbered?

Reading the wikipedia article on STS-3xx, I noticed that the numbering does not seem consistent. Space Shuttle contingency rescue missions were all numbered in the 300s with the exception of STS-400, ...
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Did the LiOH cartridges for the Space Shuttle cabin and spacesuit share the same shape?

In this answer, I explain how there were two contractors that made the environmental control systems and their lithium hydroxide cartridges during the Apollo program. Garrett AiResearch made the ECS ...
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Where can I find launch trajectory data of the space shuttle?

I am trying to mathematically model the launch of the space shuttle (up to 120km altitude) from Cape Canaveral Florida. It would be really handy if I could check my calculations with some real launch ...
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50 views

Maximum lateral loads on space shuttle during launch?

The space shuttle TVC controller included an acceleration term which kicked in above 547 ft/s to alleviate side loads caused by wind shear, etc. The acceleration term basically allowed the shuttle to ...
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204 views

How did they get away with sticking tiles with spit for so long?

The STS Orbiter was infamous for losing tiles. This occurred at a higher rate than expected. I understand the epoxy used to attach the tiles to the shuttle cured extremely quicky, so a fresh batch ...
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385 views

Is there any video footage of a full reentry?

Did any orbital craft ever fully film its reentry into the atmosphere, either as long as the camera worked or until the craft landed if it could? The Space Shuttles had a front camera that showed live ...
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How much did NASA pay Roscosmos for the Soyuz to provide assured crew return services

The STS orbiter wasn't able to stay on orbit for very long, and the ISS had an SOP of having a return seat for each body on the station, so during the years of the Shuttle performing crew rotation ...
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43 views

Drag and lift coefficient tables/plots for Saturn V/Space Shuttle/Other

I'm looking for drag and lift coefficient data to plug into my launch simulation. I could assume constant coefficients, but I'd like to structure my model to accept lookup tables, so I'm looking for ...
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Space shuttle control: Holding attitude?

Suppose a space shuttle pilot pressed a button to hold the current attitude---whatever the current roll, pitch, and yaw might be. How would the attitude error be computed for use by the TVC controller?...
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What would space shuttle digital attitude display show during flipover

The space shuttle used quaternions for navigation, guidance, and control which don't suffer from the singularities that affect euler angle sequences. Yet, the attitude indicator had a digital readout ...
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Why were hot-stick downmoding to CSS, and the ability to use CSS for some control axes but not others, disabled during space-shuttle powered flight?

During ascent, if need be, a space shuttle’s flight controls could be switched from the normal, automatic control mode over to manual1 control (known as control-stick steering, or CSS), allowing the ...
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43 views

Can the different “additional” demands on the Space Shuttle be broken down in terms of additional demands on hardware? How so?

Related: Could Space Shuttle's wings be diminished? During the sanctioning and early development of the Space Shuttle, things got somewhat budget-political, and a number of additional design ...
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Shuttle main engines RS-25, material damage on parts that needed replacement/refurbishment

Since other members wrote, that my my original question here Shuttle main engines RS-25 refurbishment/material damage was too broad I modified it to asked just one thing, while the other questions I ...
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Shuttle silica ceramics black tiles? [closed]

Shuttle silica ceramics black tiles, were mostly air and so fragile that you can break, crush them with the force of your hands (quote from NASA documentary). They were usually damaged by ice in upper ...
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111 views

Unusual position of shuttle astronauts' arms during ascent

During the ascent of STS-135 the astronauts seem to be keeping their elbows up away from their sides with their hands forward. It can be seen throughout the ascent, here are two clips when it happens....
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Stars visible during ascent?

Did any shuttle astronaut indicate at what altitude they were first able to see the stars during an ascent to orbit at sunrise? Yeagar seeing the stars in The Right Stuff. For illustration purposes ...
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Is “Space Shuttle” written as a proper noun in the spaceflight industry?

Writing the question Was a real Space Shuttle ever used as a really big simulator? (and several others) I capitalize Space Shuttle because as far as I know, that's the actual name of NASA's spacecraft,...
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What was the volume of the Space Shuttle orbiter, not just the crew cabin or cargo bay but the total volume of the entire craft?

For context, after an in-depth Google search, I asked the question "What was the volume of the Space Shuttle orbiter, not just the crew cabin or cargo bay but the total volume of the entire craft?" on ...
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Did the Shuttle have a drag penalty for ascent with a negative angle of attack (AOA)?

@OrganicMarble's answer mentions Because the Orbiter wings developed lift at zero angle of attack, the high dynamic pressure portion of ascent had to be flown at a negative angle of attack, close ...
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How would the space shuttle fare without payload doors? [duplicate]

If the space shuttle had the doors locked open, blown off, or otherwise unable to close, would it be able to re-enter and land somewhat intact? Was there any procedures in place on the off chance this ...
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297 views

Charges against NASA Administrator James Beggs? [closed]

James M Beggs was NASA administrator from 1981 to 1985. He was accused of and later completely exonerated of contract fraud. What were the details of the charges and why were they later completely ...
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Switching logic between throttle modes?

At launch, a vehicle like the space shuttle would command its throttle to do a few things: Ramp up to max throttle Hold max throttle Follow a throttle bucket as function of velocity when near max-Q ...
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Why was the reusability of the SSMEs so poor, and why was this considered acceptable given their purpose to launch a reusable vehicle?

The Space Shuttle Main Engines operated for around 8.5 minutes in every Shuttle launch, yet were removed from the orbiter after each flight and went through an overhaul, parts often being traded from ...
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Were/Are the Space Shuttle or the Falcon 9 Dragon capable of achieving an elliptical orbit on whose apogee you'd see the entire Earth?

Was the Space Shuttle and is the Crew Dragon capable of achieving a highly elliptical orbit on whose apogee you could see the entire planet Earth? There will be a touristic flight soon in which an ...
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477 views

Is a low-altitude, stable glide really absolutely needed to bail out of the space shuttle?

After the Challenger disaster, the Space Shuttle astronauts were outfitted with pilot spacesuits equipped with parachutes and internal emergency oxygen supplies, and the space shuttle was equipped ...
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324 views

Precisely when did the Shuttle's roll program occur?

Previous answers state that the Shuttle launch roll program occurred as soon as practical after tower clear and was achieved by SRB thrust vector control. Can we get a more precise answer on the ...
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164 views

Query on movement of space shuttle during lift off: Three examples

I have a small query here on the three different movements that I perceived after looking at videos during take off of Challenger (1986), Columbia (2003) and Atlantis (2010). Challenger (1986): ...
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207 views

Given unlimited funding and global cooperation, could there have been a manned space craft made in the year 1850-1860? [closed]

All my life, I've been speculating in my head about all kinds of "alternative timelines". One of the most intriguing to me are all the ones that concern space and "steampunk" technology. Recently, I ...
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232 views

Space Shuttle Stack alignment

The Space Shuttle is a good example of asymmetric launch vehicle. It required heavily-gimballing engines to keep everything balanced. As a KSP enthusiast, I found that attaching the external tank to ...
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112 views

Was mission-specific training for Shuttle military flights done at JSC, or somewhere else?

This related question details some of the military missions of the Space Shuttle. My question is about the training for these missions. Some aspects of all Shuttle missions are largely the same, and ...
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392 views

Heat Shielding Material for Reusable Craft

I'm a bit new to all this and have a quick question about heat shielding. My research tells me that for reusable craft (i.e. Space Shuttles) they used to use a plastic-based shields that would burn ...
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566 views

How does the Space Shuttle's SSME engine's thrust vary after ignition?

After writing the question Do Blue Origin's BE-3 engines need to run for 7 seconds to “warm up”?, I took a look at the YouTube video SSME ignition sequence (found in What are the small gas jets at the ...
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167 views

What does the Shuttle's axial forces analysis reveal?

The post "Shear forces between Shuttle, tank, and boosters - what pushes what?" was linked as related to a recent question of mine. I wanted to try and answer it with data but ended up with more ...
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256 views

How were the geodetic and geocentric latitudes of the Space Shuttle defined and calculated?

The image below is cropped from https://i.stack.imgur.com/4XFaJ.jpg as described in this answer. It shows a geographic state of a space shuttle at a given instant in time. There is only one value for ...
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Who released pre-launch TLE data for the Space Shuttle?

The question Pre-launch TLEs for NASA launches asks: I was curious if the United States is on the verge of launching maned flights to the ISS, will anyone release Pre-Launch TLE data like was done ...
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99 views

Does NASA yet have an official history of the Shuttle?

NASA has official "histories" of many of their past programs. These are more about people and decisions, not technical details. This New Ocean: A History of Project Mercury On the ...
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Noninertial effects a problem in strapdown IMUs?

Unlike stable-platform IMUs, which are fixed in space and therefore inertial, strapdown IMUs are fixed to the vehicle's body and therefore noninertial. Would noninertial effects distort the strapdown ...
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What EVA activities were planned for STS-80?

On 29 November 1996, during the STS-80 mission, a planned EVA by Tammy Jernigan and Tom Jones had to be abandoned because the astronauts were unable to open the outer airlock hatch. A second EVA later ...
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Do the Shuttle/ISS EMU suits have model numbers?

Early NASA spacesuits were given model numbers, as described in slide 3 of this NASA Powerpoint. The model numbers were assigned in the format P-#M, where the ...
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71 views

What are “applied moments of inertia” in the context of STS-61B's EASE/ACCESS?

This answer links to https://history.nasa.gov/spacesuits.pdf which shows the image below. (fyi Wikipedia's STS-61 is not to be confused with STS-61A, STS-61B or STS-61C, see answers to Why so many STS-...

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