mathematics

Pyotr Pakhtusov (icebreaker)

Pyotr Pakhtusov (icebreaker) is a mathematics 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 Pyotr Pakhtusov (icebreaker) rather than just read about it. In short: Pyotr Pakhtusov (Russian: Пётр Пахтусов) was a Soviet and later Russian icebreaker and hydrographic survey vessel in service from 1966 until 1997. Description In the mid-1950s, the Soviet Union began developing a new diesel-electric icebreaker design based on the 1942-built steam-powered icebreaker Eisbär to meet the needs of both civilian and naval operators.

Key takeaways

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

Reference excerpt

Pyotr Pakhtusov (Russian: Пётр Пахтусов) was a Soviet and later Russian icebreaker and hydrographic survey vessel in service from 1966 until 1997.

Description

In the mid-1950s, the Soviet Union began developing a new diesel-electric icebreaker design based on the 1942-built steam-powered icebreaker Eisbär to meet the needs of both civilian and naval operators. Built in various configurations until the early 1980s, the Project 97 icebreakers and their derivatives became the largest and longest-running class of icebreakers and icebreaking vessels built in the world. Of the 32 ships built in total, two Project 97D icebreakers were built with additional facilities for hydrographic surveys. Project 97D icebreakers were 67.7 metres (222 ft) long overall and had a beam of 18.1 metres (59 ft). Fully laden, the vessels drew 6.3 metres (20.7 ft) of water and had a displacement of 3,350 tonnes (3,300 long tons). Their three 1,800-horsepower (1,300 kW) 10-cylinder 13D100 two-stroke opposed-piston diesel engines were coupled to generators that powered electric propulsion motors driving two propellers in the stern and a third one in the bow. Pyotr Pakhtusov also featured an experimental bow washing system to increase the icebreaking capability of the vessel. Compared to baseline Project 97 icebreakers, the vessels fitted for hydrographic surveys featured additional scientific facilities, echosounders to conduct hydrographic survey, and accommodation for an additional 14 personnel.

History The first of two Project 97D icebreakers was laid down at Admiralty Shipyard in Leningrad on 21 May 1966, launched on 8 August 1966, and delivered on 30 December 1966. Launched as Ledokol-10 (Russian: Ледокол-10), Russian for "icebreaker", the vessel was renamed after the Russian 19th century surveyor and Arctic explorer Pyotr Kuzmich Pakhtusov (1800–1835) before commissioning. The vessel entered service with the Hydrographic Service of the USSR and was registered in Arkhangelsk. However, the vessel spent its first winter breaking ice in the Baltic Sea. In 1971, Pyotr Pakhtusov was renamed Mendeleev (Russian: Менделеев) after the Russian chemist and inventor Dmitri Ivanovich Mendeleev (1834–1907), but reverted to its previous name in 1975. Following the dissolution of the Soviet Union, Pyotr Pakhtusov passed over to the successor state, Russia. The ownership of the vessel was transferred to the Port of Arkhangelsk in 1992 and to a private company, JSC "Stalker", in 1995. In 1997, Pyotr Pakhtusov was renamed Prabhavi and reflagged to Saint Vincent and the Grenadines for its final voyage to Alang, India, for scrapping.

References

Worked examples

Example 1 — a first encounter with Pyotr Pakhtusov (icebreaker)

Start with the simplest possible case. Write down what Pyotr Pakhtusov (icebreaker) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, 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 Pyotr Pakhtusov (icebreaker) 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 Pyotr Pakhtusov (icebreaker) 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 Pyotr Pakhtusov (icebreaker)

In research: Pyotr Pakhtusov (icebreaker) appears in mathematics 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 Pyotr Pakhtusov (icebreaker) 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: Pyotr Pakhtusov (icebreaker) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1966 ships, IMO numbers, Icebreakers of Russia, so understanding it makes those chapters shorter.
In everyday life: Look for Pyotr Pakhtusov (icebreaker) 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 Pyotr Pakhtusov (icebreaker) in 20 minutes

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

Frequently asked questions

What is Pyotr Pakhtusov (icebreaker) in simple terms?

Pyotr Pakhtusov (Russian: Пётр Пахтусов) was a Soviet and later Russian icebreaker and hydrographic survey vessel in service from 1966 until 1997. Description In the mid-1950s, the Soviet Union began developing a new diesel-electric icebreaker design based on the 1942-built steam-powered icebreaker…

Why does Pyotr Pakhtusov (icebreaker) matter?

Because it connects several mathematics 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 Pyotr Pakhtusov (icebreaker)?

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 Pyotr Pakhtusov (icebreaker).