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Ultra Electronics

Ultra Electronics 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 Ultra Electronics rather than just read about it. In short: Ultra Electronics Holdings is a British defence and security company. It was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index until it was acquired by Cobham, which is itself owned by Advent International.

Ultra Electronics — main illustration
Ultra Electronics — illustration

Key takeaways

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

Reference excerpt

Ultra Electronics Holdings is a British defence and security company. It was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index until it was acquired by Cobham, which is itself owned by Advent International. The company was originally founded as Edward E. Rosen & Co., a manufacturer of headphones and loudspeakers, in 1920. In 1925, a new company, known as Ultra Electric Ltd., was established. During 1930, the firm launched its first all-electric radio receiver; it produced numerous domestic radio receivers around this time. Ultra diversified into aviation during the Second World War, building fuselage elements and engine components. Relaunching itself into the civilian markets following the conflict, Ultra started producing television sets in 1953. In 1961, Ultra's consumer electronics interests became part of Thorn Electrical Industries. During 1977, Ultra Electronics was bought by the Dowty Group and regained its independence via a management buyout in 1993. Into the twenty-first century, it has continued to be an active supplier to the aerospace sector; various companies, including Bombardier Aerospace and Airbus, have chosen to incorporate Ultra Electronics' noise reduction and vibration dampening products onto their aircraft. By 2005, Ultra Electronics was ranked as the 66th biggest aerospace company in the world. In August 2021, the British aerospace and defence company, Cobham, agreed to acquire Ultra Electronics in exchange for £2.6 billion.

History

Founding to 1945: Early activities

The company that would eventually become Ultra Electronics was started by wireless specialist Teddy Rosen as Edward E. Rosen & Co. during 1920. The firm was initially focused upon the manufacture of high quality headphones and loudspeakers. During 1923, the company relocated to new premises at Harrow Road, London. In 1925, a new company, known as Ultra Electric Ltd., was formed; the Ultra name had been previously used for one of its products, the first commercial moving iron loudspeaker. During 1930, Ultra launched its first all-electric radio receiver. During 1931, the firm introduced its first mains-powered wireless set, known as the Ultra Twin Cub. That same year, Ultra received its first order from the aviation industry, having been placed by the Japanese Kawasaki Company. As a result of further expansion, the company moved to larger premises at Erskine Road, Chalk Farm, NW3 in 1932; three years later, a new 150,000 sq ft (14,000 m2) factory at Western Avenue, Acton. During the 1930s, Ultra manufactured a wide range of domestic radio receivers including the Blue Fox, Lynx, Panther and Tiger models. In 1939, the company presented a television receiver to the market for the BBC High Definition Television Service which was transmitted on 405 lines from the studios at Alexandra Palace, north London. During the Second World War, Ultra diversified into aviation; the Short Stirling was the first aircraft to incorporate their products, the company acting as a subcontractor to produce tails and bomb doors for the bomber. Ultra would produce a wide range of aerostructures for numerous aircraft throughout the conflict. The firm solely focused on wartime demands, only relaunching itself into the civilian market during 1947, although it would continue to have an interest in the military sector during the post-war period.

1945–1977: Post-war growth Ultra continued to manufacture products for the aviation industry after the conflict. Various engines, including the Armstrong Siddeley Mamba and the Rolls-Royce Avon, incorporated components such as temperature regulators, fuel flow valves, and throttle controls produced by Ultra. Electronic control systems would become a key part of the company's product range. In 1953, Ultra started manufacturing television sets. During 1956, the firm opened a new factory at Gosport for the production of both televisions and radio sets; Ultra acquired rival company Pilot Radio & Television in 1959. During the following year, Ultra reorganised itself, splitting into two divisions, one specialising in domestic radio and television and the other focused on all other electronic products. In 1961, Ultra's consumer electronics interests became part of Thorn Electrical Industries, who continued to manufacture products using the Ultra brandname until 1974. As a result of the acquisition, the remainder of the company became Ultra Electronics Ltd. Amongst its varied product range at this time, it produced the "Jezebel" and "Mini-Jezebel" sonobuoys. In 1962, Ultra developed their Search and Rescue and Homing (SARAH) radio beacon, this would be widely used throughout the world. Various subsystems of Concorde, include the droop nose controls and the full authority engine controls, incorporated Ultra technologies. During 1977, Ultra Electronics was bought by the Dowty Group.

1977–1993: Under Dowty ownership After its acquisition, Ultra Electronics was absorbed into Dowty's Electronics Division. During the 1980s, the business appears to have continued to grow under the Dowty ownership, with increasing strengths in maritime products such as stealth and anti-submarine programmes, as noted in the 1987 press release accompanying the acquisition of Woodville Polymer Engineering, whose products were used by the Royal Navy in maritime stealth applications. By 1992, its annual revenues had grown substantially to over £150 million and it formed one of four divisions within Dowty Group, alongside Aerospace, Polymer Engineering and Information Technology divisions.

… excerpt ends here. Continue reading the full article.

Illustrations

Ultra Electronics: Ultra R906 radio
Ultra R906 radio
Ultra Electronics: The Ultra Electronics facility at Loudwater, Buckinghamshire
The Ultra Electronics facility at Loudwater, Buckinghamshire

Worked examples

Example 1 — a first encounter with Ultra Electronics

Start with the simplest possible case. Write down what Ultra Electronics 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 Ultra Electronics 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 Ultra Electronics 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 Ultra Electronics

In research
Ultra Electronics 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 Ultra Electronics 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
Ultra Electronics is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1920 establishments in England, Aircraft component manufacturers of the United Kingdom, Companies formed by management buyout, so understanding it makes those chapters shorter.
In everyday life
Look for Ultra Electronics 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 Ultra Electronics in 20 minutes

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

Frequently asked questions

What is Ultra Electronics in simple terms?

Ultra Electronics Holdings is a British defence and security company. It was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index until it was acquired by Cobham, which is itself owned by Advent International.

Why does Ultra Electronics 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 Ultra Electronics?

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 Ultra Electronics.

Tags

  • 1920 establishments in England
  • Aircraft component manufacturers of the United Kingdom
  • Companies formed by management buyout
  • Companies listed on the London Stock Exchange
  • Defence companies of the United Kingdom
  • Electronics companies established in 1920
  • Electronics companies of the United Kingdom
  • Electronics industry in London
  • Manufacturing companies based in London
  • Radio manufacturers
  • Sonar manufacturers

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