science

Mech radar

Mech radar 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 Mech radar rather than just read about it. In short: N001 Mech (Russian: Меч, lit. 'Sword') is a Russian (former USSR) all-weather multimode airborne radar developed by the Tikhomirov Scientific Research Institute of Instrument Design (NIIP) for the Su-27 multi-role combat aircraft. The NATO reporting name for the radar is Slot Back II, shared with the MiG-29's N019 Rubin radar (Slot Back I) due to the similar electronics characteristics.

Key takeaways

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

Reference excerpt

N001 Mech (Russian: Меч, lit. 'Sword') is a Russian (former USSR) all-weather multimode airborne radar developed by the Tikhomirov Scientific Research Institute of Instrument Design (NIIP) for the Su-27 multi-role combat aircraft. The NATO reporting name for the radar is Slot Back II, shared with the MiG-29's N019 Rubin radar (Slot Back I) due to the similar electronics characteristics.

Description The N001 radar for the Su-27 was designed by Viktor Grishin. Pushing the state of the art for the USSR, the original design, known as Mech, was supposed to draw heavily on technologies developed for the experimental Soyuz radar program led by NPO Istok. It was intended to have a great deal of commonality with the MiG-29's N019 Rubin radar. N001 has a 1.075m antenna diameter twist-cassegrain antenna. A pulse-doppler design operating in the 3 cm band using medium and high PRFs for optimum lookdown capability, the N001 has a search range of 80–100 km against a 3m2 RCS target in a headon engagement, 140 km against a large bomber. It can track a 3m2 target at 65 km. In a pursuit engagement, search range for a 3m2 target falls to just 40 km. Azimuth limits are ±60. Initial units had a MTBF of only 5 hours, but later type is 100 hours; MTBF was eventually brought up to 200 hours. The Su-33 used an updated SUV-33 control system, the N001 radar was largely unchanged but with sea optimised lookdown capability and support for the carrier-based GCI system.

Variants N001 (RLPK-27) Standard model. N001E Export version of N001. N001V (RLPK-27V) Processor replaced TS101M capable of single target engagement and simultaneously tracking 10 targets during an engagement. N001VE (RLPK-27VE) Simplified export version of the N001V or an upgrade of the N001E with added air-to-ground capabilities. New computer hardware and software, possibly including the Baguet-55 signal processor, integrated the R-77 air-to-air missile. It has an all-weather ground mapping mode for detecting land and sea targets. The detection range is 62.1 miles (99.9 km). It can track ten targets simultaneously and engage two with the R-77. Fitted to the Sukhoi Su-30MKK. N001VEP (RLPK-27VEP) Includes a separate computing channel for synthetic aperture terrain-mapping. Integrates the Kh-31A anti-ship missile. The detection range is 68.4 miles (110.1 km). Fitted to the Sukhoi Su-30MK2. A sub-variant of this radar with the Pero passive electronically scanned array (PESA) antenna, sometimes nicknamed "Panda", was flight tested although not adopted by any services.

See also Tikhomirov Scientific Research Institute of Instrument Design List of radars

References

Sources Gordon, Yefim (2007). Sukhoi Su-27 Flanker. Famous Russian Aircraft. Hinkley, England: Midland Publishing. ISBN 978-1-85780-247-4. Wei, Bai (May 2012). "A Flanker by any other name". Air Forces Monthly. No. 290. London: Key Publishing.

External links Flanker Radars in Beyond Visual Range Air Combat Overscan's guide to Russian Military Avionics Russian Knight's History of the Su-27

Illustrations

Worked examples

Example 1 — a first encounter with Mech radar

Start with the simplest possible case. Write down what Mech radar 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 Mech radar 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 Mech radar 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 Mech radar

In research: Mech radar 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 Mech radar 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: Mech radar is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aircraft radars, Military equipment introduced in the 1980s, Science and technology in the Soviet Union, so understanding it makes those chapters shorter.
In everyday life: Look for Mech radar 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 Mech radar in 20 minutes

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

Frequently asked questions

What is Mech radar in simple terms?

Why does Mech radar 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 Mech radar?

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 Mech radar.