Pierre Jeanniot and the Black Box

This article was originally written and submitted as part of a Canada 150 Project, the Innovation Storybook, to crowdsource stories of Canadian innovation with partners across Canada. The content has since been migrated to Ingenium’s Channel, a digital hub featuring curated content related to science, technology and innovation.

Dec 7, 2015

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By: Library and Archives Canada

Pierre Jeanniot with his famous “Black Box”. Source: Library and Archives Canada/ e011166702

On November 29, 1963, a Trans-Canada Air Lines flight (today’s Air Canada) crashed four minutes after take-off about 32 km north of Montréal, near Ste-Thérèse-de-Blainville, claiming the lives of 118 people on board. After an extensive investigation and airline technicians’ best efforts, the cause of the crash could not be determined. In early 1964, Trans-Canada Air Lines maintenance division chief (and future president and CEOof the company) Pierre Jeanniot was asked to install a device developed by a British engineer that would record approximately 90 flight parameters and improve the maintenance process for individual aircrafts. However, Jeanniot determined that the technology would be incredibly expensive and wouldn’t add a great deal of value to the efficiency of aircraft maintenance. Nevertheless, it occurred to him that if this recording device was adapted and adequately protected to withstand the shock of a crash, it could provide valuable data to determine the causes of aircraft accidents. And thus, the “black box” was born!

In the aviation community, the black box is commonly referred to as the “flight data recorder” (FDR), and ironically the box is not black, but orange, in order to increase visibility. Eventually, all airlines adopted the FDRon all of their aircrafts. The importance and usefulness of the FDR has been proven on numerous occasions and has allowed aircraft designers, engineers and technicians to make necessary corrections in order to avoid future accidents.

Site of Trans-Canada Air Lines crash, Ste-Thérèse-de-Blainville, Quebec. November 29, 1963. Source: Library and Archives Canada/a116378

View of Trans-Canada Airlines plane from inside the airport, Regina, Saskatchewan, January 1961. Source: Library and Archives Canada/a152837

“Worth Defending” – A brief look at the 1954 advertising campaign of a major Canadian aircraft manufacturing firm, Canadair Limited of Montréal, Québec, part 4

The advertisement “La liberté d’expression,” in English “Freedom of Speech,” published by Canadair Limited of Montréal, Québec, as part of its 1954 Worth Defending advertising campaign. Anon, “Canadair Limited.” La Presse, 13 April 1954, 25.

“Worth Defending” – A brief look at the 1954 advertising campaign of a major Canadian aircraft manufacturing firm, Canadair Limited of Montréal, Québec, part 3

“Freedom of Worship,” one of the advertisements issued by Canadair Limited of Montréal, Québec, as part of its 1954 Worth Defending advertising campaign. Anon., “Canadair Limited.” The Vancouver Province, 5 January 1954, 5.

“Worth Defending” – A brief look at the 1954 advertising campaign of a major Canadian aircraft manufacturing firm, Canadair Limited of Montréal, Québec, part 2

One of the advertisements issued by Canadair Limited of Montréal, Québec, as part of its 1954 Worth Defending advertising campaign. Anon., “Canadair Limited.” Toronto Daily Star, 6 October 1954, 4.

“Worth Defending” – A brief look at the 1954 advertising campaign of a major Canadian aircraft manufacturing firm, Canadair Limited of Montréal, Québec, part 1

A block of photographs showing some of the people involved in the bombing of beluga whales in the estuary and gulf of the St. Lawrence River. Anon., “La chasse aux marsouins [sic]. » Le Devoir, 15 August 1929, 6.

“The bomb that will kill the porpoise” – A shocking use of air power in interwar Québec: The bombing of the beluga whales of the St. Lawrence River, part 4

A typical pod of beluga whales, Hudson Bay, near Churchill, Manitoba, July 1999. Ansgar Walk, via Wikipedia.

“The bomb that will kill the porpoise” – A shocking use of air power in interwar Québec: The bombing of the beluga whales of the St. Lawrence River, part 3

The Franco Canadian physician / pilot Louis Cuisinier and one of the 45 or so kilogram (100 or so pounds) handmade aerial bombs with which he hoped to kill beluga whales. Anon., “La bombe qui tuera le marsouin.” La Presse, 5 August 1929, 11.

“The bomb that will kill the porpoise” – A shocking use of air power in interwar Québec: The bombing of the beluga whales of the St. Lawrence River, part 1

Several exhibition display cases, panels, and screens in a large, brightly-lit air hangar-style room with a high ceiling and tall, exposed metal walls.

Diane Pitre and Steven P. Deschamps’ LGBT Purge Stories Told at the Canada Aviation and Space Museum

An Institute for Aerospace Research staff member conducting an inspection on a Shuttle Remote Manipulator System, or Canadarm, around 2000. National Research Council Canada.

“It is only with the DAIS that one can see rightly; what is essential is invisible to the eye” – A respectful look at a great Canadian aerospace invention, the Diffracto DAIS non destructive testing equipment, and a bit more, part 2

$A technician conducting the first corrosion detection trial, on a Boeing Model 727 test airframe, using a Diffracto DAIS-500 non destructive testing equipment, 1992. National Research Council Canada.$

“It is only with the DAIS that one can see rightly; what is essential is invisible to the eye” – A respectful look at a great Canadian aerospace invention, the Diffracto DAIS non destructive testing equipment, and a bit more, part 1

Louis Damblanc, French pioneer of rocketry, and the device he designed to launch short-range postal rockets, circa 1937. Alexandre Ananoff, “L’histoire des fusées.” La Nature, 15 May 1939, 312.

“I preferred to be a cutting edge engineer” The most important rocketry pioneer you have never heard of, the French engineer and inventor Louis Damblanc, part 1

The Myasishchev M-50 supersonic strategic bomber at the July 1961 air show, near Túshinskiy, USSR. Seymour Topping, “Thousands See New Planes – Russ Flex Air Might in Aviation Day Show.” Minneapolis Morning Tribune, 10 July 1961, 8.

“Fakes that pay off:” A brief glance at the totally fictitious nuclear-powered Soviet super bomber ‘revealed’ in December 1958 by the American magazine Aviation Week, Part 3

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