science

Progress 27

Progress 27 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 Progress 27 rather than just read about it. In short: Progress 27 (Russian: Прогресс 27) was a Soviet uncrewed Progress cargo spacecraft, which was launched in January 1987 to resupply the Mir space station. Launch Progress 27 launched on 16 January 1987 from the Baikonur Cosmodrome in the Kazakh SSR.

Key takeaways

Progress 27 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Progress 27 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Progress 27 from memory before moving on to harder problems.

Reference excerpt

Progress 27 (Russian: Прогресс 27) was a Soviet uncrewed Progress cargo spacecraft, which was launched in January 1987 to resupply the Mir space station.

Launch Progress 27 launched on 16 January 1987 from the Baikonur Cosmodrome in the Kazakh SSR. It used a Soyuz-U2 rocket.

Docking Progress 27 docked with the aft port of the Mir Core Module on 18 January 1987 at 07:26:50 UTC, and was undocked on 23 February 1987 at 11:29:01 UTC.

Decay It remained in orbit until 25 February 1987, when it was deorbited. The deorbit burn occurred at 15:16:45 UTC and the mission ended at 16:05 UTC.

Illustrations

Worked examples

Example 1 — a first encounter with Progress 27

Start with the simplest possible case. Write down what Progress 27 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 Progress 27 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 Progress 27 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 Progress 27

In research: Progress 27 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 Progress 27 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: Progress 27 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1987 in the Soviet Union, Cargo spaceflights to Mir, Progress (spacecraft) missions, so understanding it makes those chapters shorter.
In everyday life: Look for Progress 27 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 Progress 27 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Progress 27 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 Progress 27 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Progress 27 in simple terms?

Progress 27 (Russian: Прогресс 27) was a Soviet uncrewed Progress cargo spacecraft, which was launched in January 1987 to resupply the Mir space station. Launch Progress 27 launched on 16 January 1987 from the Baikonur Cosmodrome in the Kazakh SSR.

Why does Progress 27 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 Progress 27?

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 Progress 27.