science

Xi'an H-20

Xi'an H-20 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 Xi'an H-20 rather than just read about it. In short: The Xi'an H-20 (Chinese: 轰-20; pinyin: Hōng-20; alternatively Xi'an H-X) is a projected subsonic stealth bomber design of the People's Liberation Army Air Force. It is referred to as a strategic project by the People's Liberation Army, and will be the first dedicated strategic bomber developed by China.

Key takeaways

Xi'an H-20 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Xi'an H-20 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Xi'an H-20 from memory before moving on to harder problems.

Reference excerpt

The Xi'an H-20 (Chinese: 轰-20; pinyin: Hōng-20; alternatively Xi'an H-X) is a projected subsonic stealth bomber design of the People's Liberation Army Air Force. It is referred to as a strategic project by the People's Liberation Army, and will be the first dedicated strategic bomber developed by China. The development of a strategic bomber was revealed in September 2016.

Design and development In 2016, former People's Liberation Army Air Force (PLAAF) general Ma Xiaotian announced that China was developing a new type of long-range bomber on the air force's open day. In 2018, a Chinese military spokesperson confirmed the development was making "great progress". According to the United States Department of Defense, the H-20 is expected to be a flying wing with a range of at least 8,500 km and a payload capacity of at least 10 tonnes; according to the RAND Corporation, an American funded thinktank, it will allow China "to reliably threaten U.S. targets within and beyond the Second Island Chain, to include key U.S. military bases in Guam and Hawaii." The payload is projected to be at least 10 tonnes of conventional or nuclear weapons. Throughout the years, multiple models and computer-generated pictures have surfaced on the internet, some published by magazines run by state-owned defense companies. Defense analysts have noted several recurring features on these models, including serrated air intakes, cranked-kite wings, and foldable twin tail surfaces that can be switched between being horizontal tailplanes and V-tails. In July 2022, Chinese state media suggested the H-20 was close to taking its maiden flight. In March 2024, during the second session of the 14th National People's Congress, vice commander of the People's Liberation Army Air Force, Wang Wei, indicated that H-20 will be revealed "very soon". In December 2024, it was indicated that the new bomber may not be fully operational until the 2030s. In January 2025, some images on Chinese social media indicated that test flights of the new bomber had potentially taken place but were not officially confirmed.

Worked examples

Example 1 — a first encounter with Xi'an H-20

Start with the simplest possible case. Write down what Xi'an H-20 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 Xi'an H-20 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 Xi'an H-20 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 Xi'an H-20

In research: Xi'an H-20 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 Xi'an H-20 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: Xi'an H-20 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Chinese bomber aircraft, Proposed military aircraft, Stealth aircraft, so understanding it makes those chapters shorter.
In everyday life: Look for Xi'an H-20 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 Xi'an H-20 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Xi'an H-20 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 Xi'an H-20 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Xi'an H-20 in simple terms?

Why does Xi'an H-20 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 Xi'an H-20?

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 Xi'an H-20.