science

OpenSky M-02

OpenSky M-02 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 OpenSky M-02 rather than just read about it. In short: The OpenSky M-02/M-02j is a Japanese primary glider/jet-powered motor glider inspired by the Möwe aircraft flown by the protagonist in the Hayao Miyazaki anime Nausicaä of the Valley of the Wind. It is a tail-less design intended to be powered on take off and climb for a duration of 10 minutes, then flown unpowered as a glider.

Key takeaways

OpenSky M-02 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect OpenSky M-02 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of OpenSky M-02 from memory before moving on to harder problems.

Reference excerpt

The OpenSky M-02/M-02j is a Japanese primary glider/jet-powered motor glider inspired by the Möwe aircraft flown by the protagonist in the Hayao Miyazaki anime Nausicaä of the Valley of the Wind. It is a tail-less design intended to be powered on take off and climb for a duration of 10 minutes, then flown unpowered as a glider. As of June 2006, two aircraft prototypes have been constructed, and one has successfully completed a series of 10 unpowered test flights where it flew 98 meters and achieved an altitude of 4 meters after being tow-launched by a tensed elastic cable. The project is led by artist Kazuhiko Hachiya and design by Satoru Shinohe and manufactured by Aircraft Olympos. The Jet engine installed version, M-02J, had public demonstration flight in June 2016 at Takikawa, Hokkaido.

Variants Möwe 1/2 (メーヴェ1/2) — sub-scale, radio-controlled development aircraft M-01 — unpowered development aircraft M-02 a total of 2 airframes of M-02 were built, 1 for preliminary gliding practice and 1 for installing Jet engine with no intention to mass-production. The glider version airframe is a collection of 21st Century Museum of Contemporary Art, Kanazawa since 2008. M-02J (14 June 2007) Modified M-02 airframe has had a Jet engine installed. (14 April 2010) Vehicle M-02 has undergone high speed taxi tests at Fukushima Sky Park runway, in order to evaluate stability and acceleration. More details of the jet engine assembly are available, and the engine has a considerable separation from the walls of the engine pod, in order to permit better cooling and prevent the wood and composite airframe from encountering an excessive fire risk.

Specifications (M-02 and M-02J) Data from OpenSky websiteGeneral characteristics Crew: 1 Capacity: 50 kg (110 lb) (M-02); 80 kg (176 lb) (M-02J) Length: 2.083 m (6 ft 10 in) (M-02); 2.670 m (8 ft 9.1 in)(M-02J) Wingspan: 9.636 m (31 ft 7.3 in) Height: 1.057 m (3 ft 6 in) (M-02); 1.360 m (4 ft 5.5 in)(M-02J) Wing area: 12.2 m2 (131.3 sq ft) Airfoil: high forward camber, reflexed Empty weight: 50 kg (110 lb) (M-02); 100 kg (220 lb) (M-02J) Gross weight: 105 kg (231 lb) Max takeoff weight: 115 kg (254 lb) (M-02); 180 kg (400 lb) (M-02J) Mean aerodynamic chord: 1287 mm (4.22 ft) Aspect ratio: 3.74 (quite low for a glider) L/D ratio: 10 Fuel capacity: 18 L Powerplant: 1 × NIKE :AMT Netherlands (M-02J) , 0.78 kN (176 lbf) thrust Performance

Maximum speed: 70 km/h (43 mph, 38 kn) (M-02); 90 km/h (56 mph; 49 kn) (M-02J) Cruise speed: 60–80 km/h (37–50 mph, 32–43 kn) (M-02J) Stall speed: 36 km/h (22 mph, 19 kn) (M-02); 43 km/h (27 mph; 23 kn) (M-02J) Never exceed speed: 120 km/h (75 mph, 65 kn) Rate of climb: 2.5 m/s (490 ft/min) (M-02J) Wing loading: 8.6 kg/m2 (1.8 lb/sq ft) Thrust/weight: 0.36

References

External links

Kazuhiko Hachiya's channel on YouTube OpenSky webpage (Japanese) AC-Olympos website (Japanese)

Illustrations

Worked examples

Example 1 — a first encounter with OpenSky M-02

Start with the simplest possible case. Write down what OpenSky M-02 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 OpenSky M-02 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 OpenSky M-02 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 OpenSky M-02

In research: OpenSky M-02 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 OpenSky M-02 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: OpenSky M-02 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2000s Japanese sport aircraft, Aircraft first flown in 2006, Motor gliders, so understanding it makes those chapters shorter.
In everyday life: Look for OpenSky M-02 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 OpenSky M-02 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what OpenSky M-02 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 OpenSky M-02 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is OpenSky M-02 in simple terms?

Why does OpenSky M-02 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 OpenSky M-02?

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 OpenSky M-02.