science

Sportinė Aviacija LAK-19

Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19 rather than just read about it. In short: The LAK-19 is a Lithuanian single-seat Standard-class sailplane manufactured by Sportinė Aviacija. Design and development The LAK-19 is a single-seat standard-class sailplane manufactured in Lithuania by Sportinė Aviacija.

Key takeaways

Sportinė Aviacija LAK-19 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Sportinė Aviacija LAK-19 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Sportinė Aviacija LAK-19 from memory before moving on to harder problems.

Reference excerpt

The LAK-19 is a Lithuanian single-seat Standard-class sailplane manufactured by Sportinė Aviacija.

Design and development The LAK-19 is a single-seat standard-class sailplane manufactured in Lithuania by Sportinė Aviacija. It is designed to meet the requirements of the utility category of JAR-22. It is a mid-wing glider with a T-tail and retractable main landing gear. Interchangeable outer wing panels are provided to enable it to fly with a span of either 15 or 18 metres. The sailplane is of composite construction using materials such as kevlar, carbon and glass fibre. The wing spar is of carbon fibre. The weight of each wing panel is about 55 kg. Schempp-Hirth airbrakes are mounted on the upper surfaces. It is capable of carrying 180 litres (47 gallons) of water ballast. All controls, including the water ballast system, hook up automatically. The one-piece canopy hinges forward.

The LAK-19 was based on the design of the earlier LAK-17, but is not fitted with flaps. It was first flown on 30 July 2001, and was certified on 31 May 2002 by the Lithuanian Civil Aviation Authority.

Variants LAK-19 Production 15- or 18-metre wingspan sailplane. Both variants can also be fitted with or without winglets. LAK-19T Powered self-sustaining sailplane variant of the LAK-19 with a Solo 2350B two-cylinder air-cooled two-stroke retractable engine.

Specifications (LAK-19 with 15 metre wingspan) Data from General characteristics Crew: 1 Capacity: 180 kg (397 lb) water ballast Length: 6.53 m (21 ft 5 in) Wingspan: 15.00 m (49 ft 2 in) Height: 1.29 m (4 ft 3 in) Wing area: 9.06 m2 (97.52 sq ft) Aspect ratio: 24.83 Empty weight: 220 kg (485 lb) Gross weight: 453 kg (999 lb) Performance

Maximum speed: 275 km/h (171 mph, 149 kn) Maximum glide ratio: 45 Rate of sink: 0.53 m/s (104 ft/min)

Worked examples

Example 1 — a first encounter with Sportinė Aviacija LAK-19

Start with the simplest possible case. Write down what Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19

In research: Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19 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: Sportinė Aviacija LAK-19 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aircraft first flown in 2001, Glider aircraft, LAK aircraft, so understanding it makes those chapters shorter.
In everyday life: Look for Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sportinė Aviacija LAK-19 in simple terms?

The LAK-19 is a Lithuanian single-seat Standard-class sailplane manufactured by Sportinė Aviacija. Design and development The LAK-19 is a single-seat standard-class sailplane manufactured in Lithuania by Sportinė Aviacija.

Why does Sportinė Aviacija LAK-19 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 Sportinė Aviacija LAK-19?

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 Sportinė Aviacija LAK-19.