science

Soyuz T-14

Soyuz T-14 is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Soyuz T-14 rather than just read about it. In short: Soyuz T-14 (Russian: Союз Т-14, Union T-14) was the ninth expedition to Salyut 7. The mission relieved Soyuz T-13, whose crew had performed unprecedented repairs aboard the previously-dead station.

Key takeaways

Soyuz T-14 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Soyuz T-14 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Soyuz T-14 from memory before moving on to harder problems.

Reference excerpt

Soyuz T-14 (Russian: Союз Т-14, Union T-14) was the ninth expedition to Salyut 7. The mission relieved Soyuz T-13, whose crew had performed unprecedented repairs aboard the previously-dead station.

Crew

Backup crew

Mission parameters Mass: 6,850 kg (15,100 lb) Perigee: 196 km (122 mi) Apogee: 223 km (139 mi) Inclination: 51.6° Period: 88.7 minutes

Mission highlights Soyuz T-14 demonstrated the wisdom of maintaining a Soyuz at Salyut 7 as an emergency medical evacuation vehicle: the mission commander Vasyutin fell ill which forced an early termination of the planned 6-month mission. The main goals of the mission was to receive Cosmos 1686, a modified TKS, and conduct spacewalks with application to future space stations. The first goal was achieved on October 2. Cosmos 1686 contained 4,500 kg (9,900 lb) of freight, including large items like a girder to be assembled outside Salyut 7, and the Kristallizator materials processing apparatus. However, the crew of Soyuz T-14 were unable to achieve their second goal. By late October Vasyutin was no longer helping with experiments because he was ill. On November 13 the cosmonauts began scrambling their communications with the TsUP. Return to Earth occurred soon after. Sources at NASA have reported that psychologists with the Russian Aviation and Space Agency cited Soyuz T-14 as ending prematurely due to "mood and performance issues" with the crew. Vasyutin's illness is said to have been caused by a prostate infection or urinary tract infection, which had manifested itself as inflammation and a fever.

References

External links Hendrickx, Bart (March 2011). "Illness in Orbit" (PDF). Spaceflight. pp. 104–109. Retrieved August 10, 2018.

Worked examples

Example 1 — a first encounter with Soyuz T-14

Start with the simplest possible case. Write down what Soyuz T-14 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Soyuz T-14 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Soyuz T-14 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Soyuz T-14

In research: Soyuz T-14 appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Soyuz T-14 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Soyuz T-14 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1985 in spaceflight, 1985 in the Soviet Union, Crewed Soyuz missions, so understanding it makes those chapters shorter.
In everyday life: Look for Soyuz T-14 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Soyuz T-14 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Soyuz T-14 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Soyuz T-14 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Soyuz T-14 in simple terms?

Why does Soyuz T-14 matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Soyuz T-14?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Soyuz T-14.