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John Hodge (engineer)

John Hodge (engineer) 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 John Hodge (engineer) rather than just read about it. In short: John Dennis Hodge (10 February 1929 – 19 May 2021) was a British aerospace engineer. He worked for the CF-105 Avro Arrow jet interceptor project in Canada.

John Hodge (engineer) — main illustration
John Hodge (engineer) — illustration

Key takeaways

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

Reference excerpt

John Dennis Hodge (10 February 1929 – 19 May 2021) was a British aerospace engineer. He worked for the CF-105 Avro Arrow jet interceptor project in Canada. When it was cancelled in 1959, he became a member of NASA's Space Task Group, which later became the Johnson Space Center. During his NASA career, he worked as a flight director and planner. As the on-shift flight director of the Gemini 8 spaceflight crewed by Neil Armstrong and Dave Scott as it entered a spin, Hodge was credited with the safe landing of these astronauts. When he returned to NASA in the 1980s, he worked as a manager on the Space Station Freedom project, which later became the International Space Station. He also served as an administrator at the United States Department of Transportation.

Early life Hodge was born in Leigh-on-Sea, Essex, in 1929, and attended Minchenden Grammar School in Southgate, London. He studied at the Northampton Engineering College at the University of London, graduating in 1949 with a first-class degree in engineering. From 1950 through 1952 he worked as an engineer at Vickers-Armstrongs in Weybridge, beginning upon graduation in the Aerodynamics Department. In 1952 Hodge took a job at the Avro Arrow project in Canada, where he was head of the air loads section.

NASA career When the Avro Arrow project was cancelled in 1959, 32 Avro engineers including Hodge followed the lead of Jim Chamberlin and migrated to join NASA's Space Task Group. The group, based at Langley Research Center in Hampton, Virginia, was responsible for America's crewed space program, Project Mercury. At Langley, Hodge became the assistant to Chris Kraft, who was the head of the Space Task Group's operations division and NASA's first flight director. During John Glenn's historic 1962 Friendship 7 mission, the first orbital flight by an American, Hodge was serving as the flight director at NASA's tracking station in Bermuda. The final flight in the Mercury program, MA-9, was scheduled to last long enough that a second flight director was needed in Mission Control. Thus, in 1963, Hodge became a flight director, choosing blue as his team color. The missions that he worked on included Gemini 8, where he was the first person other than Kraft to be lead flight director for a mission. Hodge was on shift when a stuck Gemini thruster brought a rapid end to the mission. He was also on duty during the launch test that resulted in the Apollo 1 fire which killed Virgil Grissom, Edward White and Roger Chaffee. Hodge was the on-shift flight director of the Gemini VIII spaceflight, crewed by Neil Armstrong and Dave Scott, as it suffered an in-flight failure causing it to roll out of control. Hodge said the role of flight control was then to "tell them what we wanted to do, and feed all their retro information, when they should fire rockets, what angle they should be at, what time, all that kind of stuff", directing the falling spacecraft to be near the Navy destroyer USS Leonard F. Mason, "and he landed close, fairly close to the destroyer, and they picked him up"; Hodge later said "if anybody ever says what did I do in the space program, it was make sure that Neil Armstrong was around to fly on Apollo". Hodge retired as a flight director in 1968, and became head of Johnson Space Center's advanced program office where he worked on preparing for the last three Apollo lunar landings and programs to follow Apollo. He left NASA in 1970 but returned in 1982 to run a large space station design study. When Space Station Freedom began in 1984, Hodge was named NASA's Associate Administrator for Space Station, a post he held until leaving NASA in 1987.

Career outside NASA After leaving NASA in 1970, Hodge worked for the Transport Systems Center, Cambridge, Massachusetts, and the Urban Transportation Development Corporation in Toronto, Ontario, Canada, before serving five years as an administrator at the United States Department of Transportation. He rejoined NASA in 1982 and served in a variety of administrator positions before leaving again in 1986. Hodge then formed his own firm, J. D. Hodge and Company, which was an international management and aerospace consulting company.

Death Hodge died at his home in Herndon, Virginia, at the age of 92 on 19 May 2021.

In film Hodge was portrayed by Jim Piddock in the 1998 miniseries From the Earth to the Moon, and by Ben Owen in the 2018 film First Man.

References

Further reading Gainor, Chris (2001). Arrows to the Moon: Avro's Engineers and the Space Race. Collector's Guide Publishing Inc. ISBN 978-1-896522-83-8. Murray, Charles; Catherine Bly Cox (1989). Apollo: The Race to the Moon. New York: Simon and Schuster. ISBN 978-0-671-61101-9. Swenson, Jr., Loyd S.; James M. Grimwood & Charles C. Alexander (1989). This New Ocean: A History of Project Mercury. NASA. ISBN 978-1-4947-4096-2. Archived from the original on 23 August 2007.

Illustrations

John Hodge (engineer) illustration
John Hodge (engineer): John Hodge (bottom left) with Glynn Lunney and James Beach during Gemini 3
John Hodge (bottom left) with Glynn Lunney and James Beach during Gemini 3

Worked examples

Example 1 — a first encounter with John Hodge (engineer)

Start with the simplest possible case. Write down what John Hodge (engineer) 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 John Hodge (engineer) 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 John Hodge (engineer) 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 John Hodge (engineer)

In research
John Hodge (engineer) 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 John Hodge (engineer) 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
John Hodge (engineer) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1929 births, 2021 deaths, 20th-century American engineers, so understanding it makes those chapters shorter.
In everyday life
Look for John Hodge (engineer) 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 John Hodge (engineer) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what John Hodge (engineer) 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 John Hodge (engineer) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is John Hodge (engineer) in simple terms?

John Dennis Hodge (10 February 1929 – 19 May 2021) was a British aerospace engineer. He worked for the CF-105 Avro Arrow jet interceptor project in Canada.

Why does John Hodge (engineer) 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 John Hodge (engineer)?

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 John Hodge (engineer).

Tags

  • 1929 births
  • 2021 deaths
  • 20th-century American engineers
  • 20th-century British engineers
  • Alumni of the University of London
  • English aerospace engineers
  • English emigrants to the United States
  • NASA flight controllers
  • NASA people
  • People from Leigh-on-Sea

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