science

Military Soyuz

Military Soyuz 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 Military Soyuz rather than just read about it. In short: The Soviet Union planned several military Soyuz spacecraft models. These versions were named Soyuz P, Soyuz PPK, Soyuz R, Soyuz 7K-VI, and Soyuz OIS (Orbital Research Station).

Key takeaways

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

Reference excerpt

The Soviet Union planned several military Soyuz spacecraft models. These versions were named Soyuz P, Soyuz PPK, Soyuz R, Soyuz 7K-VI, and Soyuz OIS (Orbital Research Station). However, none of the spacecraft ever flew in space.

Soyuz P, R and PPK

Soyuz P The Soyuz P (Perekhvatchik, Interceptor) space interceptor and Soyuz R (Razvedki, intelligence) command-reconnaissance spacecraft was proposed in December 1962 by Sergei Korolev. In the initial draft project, the Soyuz P would use the Soyuz 9K rocket stage and Soyuz 11K tanker spacecraft to conduct a series of dockings and re-fueling operations. The complete complex would then conduct intercepts of enemy satellites in orbits up to 6,000 km in altitude. Soyuz P was cancelled in 1963.

Soyuz R The Soyuz-R system (1963-1966) consisted of two separately launched spacecraft, including the small orbital station 11F71 with photo-reconnaissance and electronic intelligence equipment and a Soyuz 7K-TK for crew transport. Soyuz R was cancelled in 1966.

Soyuz PPK Initially the Soyuz P was designed for piloted inspection and destruction of enemy satellites. It was intended that the Soyuz would rendezvous with the target satellite. To minimize risk to the crew, a new version, Soyuz PPK (pilotiruemovo korablya-perekhvatchika, crewed interceptor spacecraft) was later proposed in 1964.

Soyuz 7K-VI Zvezda The Zvezda (star) station was based on a radically modified Soyuz begun in October 1965. Dmitri Kozlov was the chief engineer of the Soyuz VI project, he also worked on Soyuz-P and Soyuz-R. Soyuz 7K-VI objectives were crew earth observation, orbital inspection and destruction of enemy satellites. Zvezda would be powered by two plutonium radioisotope thermoelectric generators, as solar arrays required the spacecraft to be position to the sun, not a desired attack mode. Also the military experiments need more power than solar provided. Soyuz 7K-VI had a recoilless gun for defense. It was designed for shooting in a vacuum and defending the military research spacecraft from enemy satellite inspector and interceptor satellites. The gun was aimed by maneuvering the entire spacecraft. A special gunsight was installed in the descent module for aiming the gun. A forward docking apparatus to allow docking with Almaz was also included. Work on Zvezda was cancelled in 1967 with a single prototype in advanced stages of construction. Cosmonaut training for the VI began in September 1966. The cosmonaut group selected included commander Pavel Popovich, pilot Alexei Gubarev, flight-engineers Yuri Artyukhin, Vladimir Gulyaev, Boris Nikolaevich Belousov, and Gennadiy Kolesnikov. Popovich-Kolesnikov and Gubarev-Belousov were the prime crews, with the other engineers acting as reserves and then assigned to later crews.

Soyuz OIS (Orbital Research Station) The Soyuz OIS (Orbital Research Station) would consist of a separately-launched orbital block 11F731 OB-VI and a transport Soyuz 7K-S.

Soyuz OB-VI The Soyuz OB-VI would be launched for 30-day missions in a 51.6° orbit at 250 x 270 km. Power was provided by solar panels, and the payload included 700 to 1,000 kg of instrumentation. The total mass would be around 6,500 kg (14,300 lb).

Soyuz 7K-S The initial Soyuz 7K-S program was to consist of four uncrewed, followed by two crewed test flights, then two operational launches. Cosmonauts were assigned to the project in 1973. In 1975, the project was cancelled. At that time the launch escape system for 7K-S was ready and was used for Apollo-Soyuz Test Project flights. Three complete vehicles were launched as uncrewed test missions:

Soyuz 7K-ST The Soyuz 7K-ST transport project was develop in parallel to the military 7K-S and was redesigned for a crew of three, eventually becoming the Soyuz-T used with the Salyut space stations.

Specifications Crew Size: 2 Total Length: 7.5 m Maximum Diameter: 2.7 m Total Habitable Volume: 9.00 m3 Total Mass: 6,800 kg Primary Engine Thrust: 400 kgf Main Engine Propellants: N2O4/UDMH Main Engine Isp: 305 seconds Electrical System: Solar panels

Relation with other Soyuz versions The list below shows proposed, flown (in bold) and military (in italic) Soyuz versions.

See also List of space stations Salyut programme

References

External links

RSC Energia: Concept Of Russian Manned Space Navigation Development Information on Soyuz spacecraft OMWorld's ASTP Docking Trainer Page

Illustrations

Worked examples

Example 1 — a first encounter with Military Soyuz

Start with the simplest possible case. Write down what Military Soyuz 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 Military Soyuz 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 Military Soyuz 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 Military Soyuz

In research: Military Soyuz 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 Military Soyuz 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: Military Soyuz is common in secondary-school and first-year university syllabi. It links to neighbouring topics Crewed spacecraft, Soviet military spacecraft, Soyuz programme, so understanding it makes those chapters shorter.
In everyday life: Look for Military Soyuz 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 Military Soyuz in 20 minutes

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

Frequently asked questions

What is Military Soyuz in simple terms?

The Soviet Union planned several military Soyuz spacecraft models. These versions were named Soyuz P, Soyuz PPK, Soyuz R, Soyuz 7K-VI, and Soyuz OIS (Orbital Research Station).

Why does Military Soyuz 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 Military Soyuz?

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 Military Soyuz.