engineering

Rocket Engine Test Facility

Rocket Engine Test Facility is a engineering 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 Rocket Engine Test Facility rather than just read about it. In short: Rocket Engine Test Facility was the name of a facility at the NASA Glenn Research Center, formerly known as the Lewis Research Center, in Ohio. The purpose of the Rocket Engine Test Facility was to test full-scale liquid hydrogen rockets at thrust chamber pressures of up to 2100 psia and thrust levels to at least 20,000 pounds.

Key takeaways

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

Reference excerpt

Rocket Engine Test Facility was the name of a facility at the NASA Glenn Research Center, formerly known as the Lewis Research Center, in Ohio. The purpose of the Rocket Engine Test Facility was to test full-scale liquid hydrogen rockets at thrust chamber pressures of up to 2100 psia and thrust levels to at least 20,000 pounds. Work on the design of the facility began in 1954 under the auspices of NACA's Rocket Branch of the Fuels and Combustion Research Division. It was built at a cost of $2.5 million and completed in 1957. The facility was located at the south end of the center, adjacent to Abrams Creek 41.404°N 81.868°W / 41.404; -81.868. It was demolished in 2003 in order to make way for the runway expansion of the Cleveland Hopkins International Airport.

Capabilities It consisted of two major buildings and several support service buildings. Test Stand A was designed for sea-level testing of vertically mounted rocket engines that exhaust into an exhaust gas scrubber and muffler. The A stand had the capability of testing engines with chamber pressures up to 4300 psia and thrust levels up to 50,000 pounds.

Test Stand B was designed by Anthony Fortini and Vearl N. Huff in 1959, but it was not built until after 1980. It could test horizontally mounted rocket engines exhausting into an exhaust diffuser, cooler, and a nitrogen-driven two-stage ejector system. The B stand, for altitude testing in a space environment, had the capability of testing engines with chamber pressures up to 1000 psia and thrust levels up to 1500 pounds. The support systems included storage dewars for cryogenic fuels and a large water reservoir. Smaller buildings included a block house for observation, a pump house, a helium compressor shelter, and a liquid hydrogen pump vaporizer shelter. In 1984 the facility was modified to provide the capability for testing extremely large area ratio nozzles (to 1000:1). Both men received awards for Test Stand B under the Space Act, as recommended by the Inventions and Contributions Board in accordance with the provisions of Section 306 of the National Aeronautics and Space Act 1958 and granted by the Administrator of NASA.

National Historic Landmark It was designated a U.S. National Historic Landmark in 1985, because of its significant role in the development of liquid hydrogen as a rocket fuel. It was used in the development of the Pratt & Whitney RL10 engine for the Centaur upper stage, as well as for the J-2 engine, with its 200,000-pound thrust, for the second stage of the Saturn V rocket. The hydrogen-oxygen engines used by the Space Shuttle were also tested in this facility. After the facility's 2003 razing, it was de-designated on April 4, 2005.

References Dawson, Virginia P. Ideas into hardware: A history of the Rocket Engine Test Facility at the NASA Glenn Research Center. (2004)

Illustrations

Worked examples

Example 1 — a first encounter with Rocket Engine Test Facility

Start with the simplest possible case. Write down what Rocket Engine Test Facility claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Rocket Engine Test Facility 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 Rocket Engine Test Facility 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 Rocket Engine Test Facility

In research: Rocket Engine Test Facility appears in engineering 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 Rocket Engine Test Facility 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: Rocket Engine Test Facility is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cold War sites in the United States, Former National Historic Landmarks in Ohio, Glenn Research Center, so understanding it makes those chapters shorter.
In everyday life: Look for Rocket Engine Test Facility 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 Rocket Engine Test Facility in 20 minutes

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

Frequently asked questions

What is Rocket Engine Test Facility in simple terms?

Why does Rocket Engine Test Facility matter?

Because it connects several engineering 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 Rocket Engine Test Facility?

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 Rocket Engine Test Facility.