science

Long March 6A

Long March 6A 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 Long March 6A rather than just read about it. In short: The Long March 6A (Chinese: 长征六号甲运载火箭) or Chang Zheng 6A as in pinyin, abbreviated LM 6A for export or CZ 6A within China, is a Chinese medium-lift launch vehicle in the Long March family, which was developed by the China Aerospace Science and Technology Corporation (CASC). The vehicle is a further development of the Long March 6, with two YF-100 engines on the first stage as opposed to one on the Long March 6, augm…

Key takeaways

Long March 6A belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Long March 6A to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Long March 6A from memory before moving on to harder problems.

Reference excerpt

The Long March 6A (Chinese: 长征六号甲运载火箭) or Chang Zheng 6A as in pinyin, abbreviated LM 6A for export or CZ 6A within China, is a Chinese medium-lift launch vehicle in the Long March family, which was developed by the China Aerospace Science and Technology Corporation (CASC). The vehicle is a further development of the Long March 6, with two YF-100 engines on the first stage as opposed to one on the Long March 6, augmented by four solid rocket boosters. The Long March 6A is China's first rocket with solid rocket boosters, and only one so far to combine solid and liquid fuel technology in one rocket. There also exists a shorter boosterless variant of the 6A called the Long March 6C. The maiden launch of the Long March 6A took place on March 29, 2022, successfully reaching orbit. It was also the first launch from the newly built launch complex 9A in Taiyuan.

Launch statistics

List of launches

Anomalies

Some upper stages fragmented before reentry After the release of Yunhai 3 following the Y2 launch of 11 November 2022, the Long March 6 upper stage broke up into more than 50 pieces of debris, which later expanded to more than 781 pieces. The vehicle was intended to re-enter in one piece and burn up. Following the November 2022 breakup, similar events were observed after the launches of 26 March 2024, 4 July 2024, and 6 August 2024. The reason for the breakups is unclear, but it may be related to upper stage passivation or insulation.

Illustrations

Worked examples

Example 1 — a first encounter with Long March 6A

Start with the simplest possible case. Write down what Long March 6A 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 Long March 6A 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 Long March 6A 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 Long March 6A

In research: Long March 6A 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 Long March 6A 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: Long March 6A is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2022 in China, Long March (rocket family), Spacecraft that broke apart in space, so understanding it makes those chapters shorter.
In everyday life: Look for Long March 6A 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Long March 6A” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Long March 6A in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Long March 6A 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 Long March 6A out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Long March 6A in simple terms?

Why does Long March 6A 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 Long March 6A?

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 Long March 6A.