science

McCandless Lunar Lander

McCandless Lunar Lander 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 McCandless Lunar Lander rather than just read about it. In short: McCandless Lunar Lander, also known as the McCandless Lunar Delivery Service, is a concept for a robotic lunar lander proposed as one of the commercial cargo vehicles for NASA's Commercial Lunar Payload Services (CLPS). The lander was proposed to NASA for funding by the aerospace company Lockheed Martin, and it is based on the successful Mars landers Phoenix and InSight.

Key takeaways

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

Reference excerpt

McCandless Lunar Lander, also known as the McCandless Lunar Delivery Service, is a concept for a robotic lunar lander proposed as one of the commercial cargo vehicles for NASA's Commercial Lunar Payload Services (CLPS). The lander was proposed to NASA for funding by the aerospace company Lockheed Martin, and it is based on the successful Mars landers Phoenix and InSight.

Overview

On 29 November 2018, NASA announced the first nine companies, including Lockheed Martin, that are allowed to bid on contracts by the Commercial Lunar Payload Services (CLPS). These contracts are indefinite delivery, indefinite quantity contracts with a combined maximum contract value of $2.6 billion during the next 10 years. The contracted landers will transport commercial payloads focused on exploration, in situ resource utilization (ISRU), and lunar science. The McCandless lander is named in honor of the late astronaut and former Lockheed Martin employee Bruce McCandless II, who in 1984 performed the first free-flying spacewalk without a lifeline to the orbiting Space Shuttle, using a jetpack built by the company.

Spacecraft The McCandless lander design is based on the successful Phoenix and InSight Mars landers, designed and built by Lockheed Martin for NASA. The lander is being proposed to the new Commercial Lunar Payload Services program (CLPS) to deliver to the lunar surface up to 250 kg (550 lb) of usable payload, including stationary scientific instruments, small deployable rovers, ISRU experiments, or even sample-return vehicles. The lander's system incorporates on-board radars and a set of rocket thrusters for deceleration and soft-landing. It will not need the aeroshell and heat shield, as the Moon has no atmosphere. The lander is presently designed to operate for one lunar day (14 Earth days), but upgrades for enduring the lunar nights can be considered depending on mission requirements.

References

Worked examples

Example 1 — a first encounter with McCandless Lunar Lander

Start with the simplest possible case. Write down what McCandless Lunar Lander 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 McCandless Lunar Lander 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 McCandless Lunar Lander 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 McCandless Lunar Lander

In research: McCandless Lunar Lander 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 McCandless Lunar Lander 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: McCandless Lunar Lander is common in secondary-school and first-year university syllabi. It links to neighbouring topics Commercial Lunar Payload Services, Lockheed Martin, Mining in space, so understanding it makes those chapters shorter.
In everyday life: Look for McCandless Lunar Lander 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 McCandless Lunar Lander in 20 minutes

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

Frequently asked questions

What is McCandless Lunar Lander in simple terms?

Why does McCandless Lunar Lander 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 McCandless Lunar Lander?

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 McCandless Lunar Lander.