science

Northrop AQM-38

Northrop AQM-38 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 Northrop AQM-38 rather than just read about it. In short: The AQM-38 was an American target drone, developed during the 1950s by the Radioplane Division of the Northrop Corporation, Newbury Park, California, and manufactured by its Ventura Division at Van Nuys, California. Extensively used for surface-to-air missile training, over two thousand were built during its production run and it saw continued use within the United States Army and United States Navy for nearly twent…

Key takeaways

Northrop AQM-38 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Northrop AQM-38 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Northrop AQM-38 from memory before moving on to harder problems.

Reference excerpt

The AQM-38 was an American target drone, developed during the 1950s by the Radioplane Division of the Northrop Corporation, Newbury Park, California, and manufactured by its Ventura Division at Van Nuys, California. Extensively used for surface-to-air missile training, over two thousand were built during its production run and it saw continued use within the United States Army and United States Navy for nearly twenty years.

Design and development

Following flight trials of the XKD4R target drone, developed for the United States Navy, Radioplane redesigned the aircraft into an improved version, designated RP-76, which first flew in 1959. Compared to the XKD4R, the RP-76 had redesigned wing fairings, with the vertical control fin being moved to the underside of the missile, as opposed to being on top. The RP-76 was designed to fly a pre-programmed trajectory on autopilot, with radio command guidance being optional. As with the XKD4R, control was provided by three fins located forwards on the body of the craft. A Luneburg lens was included to augment the drone's radar signature, and recovery at the end of the flight was by parachute.

Operational history Following its first flight in 1959, the RP-76 was most often launched from a F-89 Scorpion fighter of the United States Air Force, and was extensively used by the U.S. Army for training the operators of surface-to-air missiles; it saw additional use in training USAF fighter pilots in air-to-air gunnery, as well. A slightly modified version, designated RP-78, was supplied to the U.S. Navy; it used a more powerful rocket, producing 99,000 lbf (440 kN) of thrust, to propel the drone to a top speed of Mach 1.25. In 1963, the RP-76 and RP-78 received the designations AQM-38A and AQM-38, respectively, in the new "tri-service" missile designation system. In all, over 2,000 examples of the drone were built by Northrop, with the missile remaining in service with the U.S. Military until they were retired in the mid-1970s.

Illustrations

Worked examples

Example 1 — a first encounter with Northrop AQM-38

Start with the simplest possible case. Write down what Northrop AQM-38 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 Northrop AQM-38 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 Northrop AQM-38 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 Northrop AQM-38

In research: Northrop AQM-38 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 Northrop AQM-38 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: Northrop AQM-38 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1950s United States special-purpose aircraft, High-wing aircraft, Northrop aircraft, so understanding it makes those chapters shorter.
In everyday life: Look for Northrop AQM-38 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 Northrop AQM-38 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Northrop AQM-38 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 Northrop AQM-38 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Northrop AQM-38 in simple terms?

Why does Northrop AQM-38 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 Northrop AQM-38?

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 Northrop AQM-38.