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National Vigilance Park

National Vigilance Park is a computer 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 National Vigilance Park rather than just read about it. In short: The United States National Vigilance Park (NVP) was a memorial to the military servicemen who participated in aerial reconnaissance during the Cold War. Dedicated on September 2, 1997, NVP was located just one block from the National Security Agency (NSA) headquarters at Fort George G.

National Vigilance Park — main illustration
National Vigilance Park — illustration

Key takeaways

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

Reference excerpt

The United States National Vigilance Park (NVP) was a memorial to the military servicemen who participated in aerial reconnaissance during the Cold War. Dedicated on September 2, 1997, NVP was located just one block from the National Security Agency (NSA) headquarters at Fort George G. Meade, Maryland. It was previously open 24 hours a day for viewing. Military events connected with the Intelligence Community and/or personnel stationed at Ft. Meade or working at NSA were formerly scheduled through the National Cryptologic Museum (NCM), which is just one block west of the former park. When NVP was open to the public, admission was free. Donations to the NCM Foundation are still accepted for potential reopening of the park. Photographing the planes and the memorial plaques, decor, and grounds was allowed when they were on site; however, pictures of the adjacent NSA buildings were not permitted due to security concerns.

The memorial Three reconnaissance aircraft were on display at the memorial, which were ringed by a semicircle of 18 trees representing the 18 aerial cryptologic missions lost during the program. A U.S. Army Seminole RU-8D Reconnaissance Plane represented the Army Airborne Signals Intelligence contribution in the Vietnam War. A Hercules C-130 transport, tail number 60528, modified to look like a reconnaissance-configuration C-130A, memorialized a U.S. Air Force aircraft shot down over Soviet Armenia during the Cold War. Finally, the park contained a U.S. Navy Skywarrior EA-3B, commemorating a mission in the Mediterranean on January 25, 1987 in which all seven crew members died.

Closure National Vigilance Park was closed in February 2017, and its aircraft and memorials removed to allow for the construction of a new NSA visitor checkpoint. In 2018, Google Maps satellite imagery depicted the in-progress removal of the aircraft. Also in 2018, the official NSA website for NVP reported the park would reopen at an undetermined time in the future next to the NCM.

See also

National Security Agency/Central Security Service Cryptologic Memorial National Cryptologic Museum Bletchley Park Arlington Hall International Spy Museum Moscow–Washington hotline United States aerial reconnaissance of the Soviet Union

Notes John R. Schindler, "A Dangerous Business: The U.S. Navy and National Reconnaissance During the Cold War", 1997.

References

External links

National Vigilance Park home page The National Cryptologic Museum Foundation A set of photos of the museum by Austin Mills A set of photos of NCM and NVP by Mike Newton

Illustrations

National Vigilance Park illustration

Worked examples

Example 1 — a first encounter with National Vigilance Park

Start with the simplest possible case. Write down what National Vigilance Park claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer 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 National Vigilance Park 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 National Vigilance Park 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 National Vigilance Park

In research
National Vigilance Park appears in computer 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 National Vigilance Park 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
National Vigilance Park is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aerial reconnaissance, Cryptography organizations, National Security Agency, so understanding it makes those chapters shorter.
In everyday life
Look for National Vigilance Park 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 National Vigilance Park in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what National Vigilance Park means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain National Vigilance Park out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is National Vigilance Park in simple terms?

The United States National Vigilance Park (NVP) was a memorial to the military servicemen who participated in aerial reconnaissance during the Cold War. Dedicated on September 2, 1997, NVP was located just one block from the National Security Agency (NSA) headquarters at Fort George G.

Why does National Vigilance Park matter?

Because it connects several computer 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 National Vigilance Park?

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 National Vigilance Park.

Tags

  • Aerial reconnaissance
  • Cryptography organizations
  • National Security Agency

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