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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103 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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80 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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Space Shuttle Moon Mission? [duplicate]

Theoretically speaking, could the shuttle have performed TLI, LOI, and TEI burns given extra OMS fuel? approximately how much fuel and payload bay space/mass would this take up and might there ...
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277 views

What was it like for the family members of astronauts before a launch? [closed]

What was it like to be the family member of an astronaut in the days and hours before a launch? Specifically, I'm curious about launches during NASA'S space shuttle program. Where did family members ...
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2k views

How large a percentage of its fuel did the Space Shuttle use to get to orbit?

What percent of the total available fuel onboard the space shuttle, external tank, and rocket boosters was required to launch and get the space shuttle into orbit? Or phrased another way, what percent ...
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Space Shuttle SRB Hydraulic Power Unit Controller Schematic: "One Shot" block, what is it?

The space shuttle SRB's Hydraulic Power Unit (HPU) provided hydraulic power to the booster's TVC system. This HPU controller schematic shows "One Shot" blocks that I'm suddenly curious ...
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Space shuttle position and velocity calculations from IMUs?

How were the space shuttle's rate gyro and accelerometer outputs converted into reliable position and velocity vectors before being fed into GNC software? Is there a document detailing those ...
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What were the Shuttle TPS repair patches made of?

Following the incident on STS-107, three methods of dealing with damaged tiles were developed. The method for large tile damage involved screwing a very thin plate over the hole, after loosely filling ...
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Which reference frame for space shuttle PEG orbital insertion?

Which frame were the space shuttle's orbital insertion attitude targets specified in? The shuttle had three frame choices: LVLH, INRTL, and REF (an inertial frame whose attitude the crew could lock in ...
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387 views

How did the Rotating Service Structure achieve environment control?

The main purpose of the Rotating Service Structure on the Space Shuttle launchpads is to have a clean environment to transfer payloads into the orbiter payload bay: The major feature of the ...
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133 views

Measurement and estimation of temperature of Space Shuttle nose cone during launch and re-entry

During the launch and re-entry of the Space Shuttle, what are the measured and estimated temperatures (or distribution) of the shuttle nose cone as a function of altitude? How is the temperature ...
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Space shuttle digital signal processor (DSP): floating point or fixed point?

Digital signal processors can represent irrational numbers using fixed-point or floating-point data types. Fixed point means fixed number of decimal places, and floating point means floating number of ...
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Launch escape sequence of events?

Follow up to previous question: Suppose a critical failure triggers the launch escape sequencing controller. A two-engine failure, say, or an attitude error rate in excess of some 5 deg/s in roll (as ...
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From attitude control malfunction to launch escape Go signal?

I’ve seen and read about launch failures caused by crossed thrust vectoring wires which fed rock and tilt commands to the wrong engine gimbal actuators (rock command going to tilt cylinder and tilt ...
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Name for PID control with acceleration term?

The space shuttle TVC controller used a PID control scheme with an acceleration term for load management at high dynamic pressures. The acceleration term would be ramped up at 547 ft/s (before max Q) ...
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68 views

Space shuttle Initial ADI frame Before Switch to LVLH?

The space shuttle crew switched the ADI frame to LVLH as soon as the roll maneuver was completed. They waited for that time because the LVLH frame is in mathematical gimbal lock (singularity) when ...
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Why no yaw in ADI when LVLH is selected?

The space shuttle would display the spacecraft's attitude in one of three frames: LVLH, REF, or INRTL. Launch procedures called for LVLH to be selected very early in launch. The attitude indicator ...
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107 views

What is the limit to which we can scale up uniformly in all directions Space Shuttle SRB before it becomes unable to take off?

Let's say we like the Space Shuttle design so much, we want to use it as a reference for our new rocket. But we want to build rocket which will be capable of launching larger payload into Earth's ...
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Shuttle main engines RS-25 refurbishment/material damage

There was some thread here on Space Stack-Exchange about RS-25 refurbishment, but I am interested now, how this refurbishment look from the point of material damage of SSME hardware. In the early ...
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Efficiency of 3 in line boosters of a shuttle? [closed]

What is the most efficient scenario for a total of 700 Newtons of thrust on three lined up boosters? If the air pressure for the payload booster isn't the same, can they make an efficient air ...
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447 views

Was there ever an incident of collision between SRBs after SRB jettison, during launch of the Space Shuttle? [duplicate]

Did the Space Shuttle solid rocket boosters (SRBs) ever collide with each other after separation from the Shuttle stack? To clarify, I'm not asking if an SRB ever collided with the Shuttle itself or ...
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What is the current status of India's RLV craft? [closed]

What is their underlying technology, and is it going to be cheaper like their Mars orbital mission?
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349 views

Is there any written evidence of NASA being under pressure to launch prior to the Rogers Commission asserting it in February, 1986? [closed]

I asked that question of the NASA administrator, James M Beggs and got the following response. JRG: Jim a lot has been made of the fact that NASA management made poor decisions regarding the ...
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340 views

Before their disastrous demise, how many missions did Challenger and Columbia fly?

I always grew up thinking that both of those shuttles only flew in one mission and never made it back home. Now, I found evidence that that's not the case.
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Why were the three 122-cm diameter conductive spheres for charge collection in the Shuttle's Space Experiments with Particle Accelerators black?

From this answer to How did three 1.2 meter spheres and a Xe+ plasma contactor keep the Shuttle “grounded”? What did they look like?: STS-45 view of payload bay with this description (emphasis my own)...
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183 views

Is this really a picture of John Young?

This article from the Smithsonian Air and Space magazine is about eyeglasses for astronauts. The following quote about legendary astronaut John Young is immediately followed by a picture: Even ...
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211 views

Bipropellant RCS systems: Do they go together with docking? Or with manned spaceflight?

In a recent discussion, I asked about using a certain bipropellant system for RCS thrusters (I was actually thinking about it as fuel for an MMU jetpack or the "scooter" commonly imagined in science ...
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249 views

Shuttle silica ceramics black tiles

Since other members wrote, that my my original question here Shuttle silica ceramics black tiles? was too broad I modified it to asked just one thing, while the other questions I will asked later. ...
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Scoutleader looking for understanding of fuel burn for getting away from earth gravity Vs. fuel expended when traveling from A-B in space

I am a layman scoutleader and like to discuss the amount of fuel needed to get from earths gravity to the thrust needed in space to get from A-B. Is there a spreadsheet that would give course ...
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What is the purpose of this cable connecting Astronaut's boot restraint to a robotic arm?

The caption for the image ISS016-E-008937 says ISS016-E-008937 (3 Nov. 2007) --- While anchored to a foot restraint on the end of the Orbiter Boom Sensor System (OBSS), astronaut Scott Parazynski, ...
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717 views

How is max Q for the shuttle actually defined?

In this article about max Q https://en.m.wikipedia.org/wiki/Max_Q the shuttle launch is discussed. Since there are four distinct large objects - two boosters, one shuttle and one giant tank - there ...
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How do Spaceship navigate in space?

In Space there is no air to put thrust on any other thing to expect any action-reaction forces. Then how do spacecraft go left or right or are the ineligible to take sharp moves?
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Why would different Shuttle orbits have different mission directors?

The Wikipedia page for NASA Flight director Holly Ridings contains a portrait with two other STS-117 mission flight directors. The caption there says: Flight directors for the STS-117 mission in ...
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141 views

What was the quickest launch-to-complex-milestone time achieved by a shuttle mission?

The baseline reference mission "3B" had the shuttle launching from Vandenburg, rendezvousing with and retrieving a satellite, and returning it to Earth all within a single orbit: http://www....
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Who's buried in Grant's Tomb? Size of 122 cm conductive spheres charge collection in the Shuttle's Space Experiments with Particle Accelerators?

Why were the three 122-cm diameter conductive spheres for charge collection in the Shuttle's Space Experiments with Particle Accelerators black? links to How did three 1.2 meter spheres and a Xe+ ...
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Space Shuttle: How were I-Load launch programs calculated?

The space shuttle launch program was based on a target attitude profile calculated for the mission and the latest winds. The attitude profile would include roll, pitch, and yaw as functions of time ...
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How did Scott Horowitz "hoist" the Mars Society's flag up STS-105's "mast"?

The medium.com's Retired NASA Astronaut Joins Crew That’s Building 21st Century Transportation Network says: At NASA, (Scott J. Horowitz) was responsible for selecting SpaceX — the company run by ...
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Why is Progress M-47 never considered with regard to hypothetical Columbia rescue missions? [duplicate]

Progress M-47 was launched to resupply the ISS only one day after the Columbia disaster. Hypothetical scenarios for a Columbia rescue mission following early detection of the tile damage always focus ...
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How was the thrust for the STS-94 launch and other space shuttle launches balanced? [duplicate]

I've been looking at of the STS-94 skylab launch and other launching involving asymmetrical rocket launch vehicles, mostly because I've never been able to design something similar in KSP with ...
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Most far away location reached thus far [duplicate]

So far, what is the furthest space exploration machines have been able to reach in the universe? Thanks.
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Could NASA go back to the Moon? [closed]

Even after launching so many space missions, including the one which led Man to the Moon (Apollo 11, July 1969), NASA made several mistakes even in the space programs that followed. For e.g. Space ...
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31k views

How far is zero-gravity from ground? [closed]

If I make a rocket and want to reach a point in space above sea level where I don't need to burn fuel to rise, how far is that point? space or zero gravity area? I am just trying to figure out ...
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what is the space shuttle's SRB motor/engine

what is the space shuttle's SRB motor/engine? I do not know how the thrust in the space shuttle's SRB goes out/burns. research shows that it either an engine or motor though I'm not sure.
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Can Zachman framework be used to find out reason of Columbia space shuttle disaster?

It is somewhat hard to fill in the table without knowing the exact details beside what I can gather up from wiki that the incident was mainly attributed to damage to lift wing of shuttle going ...
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What is super heavy booster? What will it be used for?

Also called BN1, right? Please explain me what is booster and what will it be used for? Also feel free to give me additional insights other than included in my question about BN1.
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Why were the Space Shuttle mission designations so messed up?

Following the STS-27 flight the Shuttle mission designations got into a mess. The anwer to this question mentions that it was due to schedules being moved around. Now while it wouldn't have hurt to ...

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