science

Vostok (rocket family)

Vostok (rocket family) 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 Vostok (rocket family) rather than just read about it. In short: Vostok (Russian: Восток, lit. 'East') was a family of rockets derived from the Soviet R-7 Semyorka ICBM and was designed for the human spaceflight programme. This family of rockets launched the first artificial satellite (Sputnik 1) and the first crewed spacecraft (Vostok) in human history.

Key takeaways

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

Reference excerpt

Vostok (Russian: Восток, lit. 'East') was a family of rockets derived from the Soviet R-7 Semyorka ICBM and was designed for the human spaceflight programme. This family of rockets launched the first artificial satellite (Sputnik 1) and the first crewed spacecraft (Vostok) in human history. It was a subset of the R-7 family of rockets. On March 18, 1980, a Vostok-2M rocket exploded on its launch pad at Plesetsk during a fueling operation, killing 48 people. An investigation into a similar – but avoided – accident revealed that the substitution of lead-based for tin-based solder in hydrogen peroxide filters allowed the breakdown of the H2O2, thus causing the resultant explosion.

Variants The major versions of the rocket were:

Luna 8K72 – used to launch the early Luna spacecraft Vostok-L 8K72 – Variant of the Luna, used to launch prototype Vostok spacecraft Vostok-K 8K72K – a refined version of the above. This was the version actually used for human spaceflight Vostok-2 8A92 – used for launching Zenit reconnaissance satellites throughout the 1960s Vostok-2M 8A92M – modified version for launching Meteor weather satellites into higher orbits. Soyuz/Vostok 11A110 – hybrid of Soyuz and Vostok rockets used as an interim for two launches

Vostok 8K72K Source:

First Stage — Block B, V, G, D (four strap-on boosters) Gross mass: 43,300 kg Empty mass: 3,710 kg Thrust (vac): 4 x 99,000 kgf (971 kN) = 3.88 MN Isp: 313 seconds (3.07 km/s) Burn time: 118 s Isp(sl): 256 seconds (2.51 km/s) Diameter: 2.68 m Span: 8.35 m Length: 19.00 m Propellants: Lox/Kerosene Engines: 1 x RD-107-8D74-1959 per booster = 4 Second Stage — Block A (core stage) Gross mass: 100,400 kg Empty mass: 6,800 kg Thrust (vac): 912 kN Isp: 315 seconds (3.09 km/s) Burn time: 301 s Isp(sl): 248 seconds (2.43 km/s) Diameter: 2.99 m Length: 28.00 m Propellants: Lox/Kerosene Engine: 1 x RD-108-8D75-1959 Third Stage — Block E Gross mass: 7,775 kg Empty mass: 1,440 kg Thrust (vac): 54.5 kN Isp: 326 seconds (3.20 km/s) Burn time: 365 s Diameter: 2.56 m Span: 2.56 m Length: 2.84 m Propellants: Lox/Kerosene Engine: 1 x RD-0109

Gallery

Illustrations

Worked examples

Example 1 — a first encounter with Vostok (rocket family)

Start with the simplest possible case. Write down what Vostok (rocket family) 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 Vostok (rocket family) 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 Vostok (rocket family) 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 Vostok (rocket family)

In research: Vostok (rocket family) 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 Vostok (rocket family) 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: Vostok (rocket family) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1958 in spaceflight, 1991 in spaceflight, R-7 (rocket family), so understanding it makes those chapters shorter.
In everyday life: Look for Vostok (rocket family) 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 Vostok (rocket family) in 20 minutes

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

Frequently asked questions

What is Vostok (rocket family) in simple terms?

Why does Vostok (rocket family) 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 Vostok (rocket family)?

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 Vostok (rocket family).