Trystan Casey
General Electric (GE) made significant contributions to World War II, particularly through its work in developing systems, components, and technologies that improved the performance of the Allied forces. GE's efforts were instrumental in driving the Allied victory, with innovations in propulsion units, submarines, aircraft systems, and X-ray technology playing a crucial role in the war's outcome. The company's work extended beyond the battlefield, as they also developed essential appliances and equipment for field installations, ships, and liberated peoples. GE's impact during World War II raises questions about its involvement with German companies, such as Krupp Aktiengesellschaft, and its role in creating international shortages of vital war materials.
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What You'll Learn
GE Schenectady's work on propulsion units for the U.S. Navy
GE Schenectady played a pivotal role in the United States' war efforts during World War II, particularly in its work on propulsion units for the U.S. Navy. This work was Schenectady's most significant contribution to the war, as it was responsible for producing propulsion units for the Navy's ships and the U.S. Merchant Marine.
The Navy had redesigned its fleet in the 1930s, and the U.S. Merchant Marine was rebuilt starting in 1936, creating a pressing need for propulsion technology. GE Schenectady stepped up to this challenge, developing geared turbine drives for a new class of destroyers, which offered improved fuel efficiency. This innovation not only enhanced the performance of destroyers but was also adapted for use in battleships, cruisers, and other naval vessels.
Schenectady's expertise in propulsion technology extended beyond surface vessels. They also played a crucial role in the development of propulsion units for submarines, including diesel-electric propulsion units, which offered higher performance and reduced fuel consumption. GE Schenectady's work benefited two-thirds of all U.S. submarines, a remarkable feat that underscores the significance of their contributions.
The impact of GE Schenectady's work on propulsion units extended further. They also constructed large motors for tanks and heavy vehicles, which were utilised by Navy Seabees to construct landing strips on Pacific islands. Additionally, Schenectady engineered an enormous motor capable of lifting destroyers out of the water during drydock repairs.
The achievements of GE Schenectady were recognised through multiple awards. They were bestowed the Navy "E Ribbon" in 1942 and the Army-Navy "E Ribbon" on three separate occasions during the war. These honours stand as a testament to the invaluable support and technological advancements that GE Schenectady provided to the U.S. Navy during World War II.
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Advancements in submarine technology
During World War II, submarines played a significant role, with German U-Boats causing significant losses in the Battle of the Atlantic. These submarines used diesel engines to generate electricity and charge batteries, but they consumed oxygen, limiting their underwater capability.
General Electric, a leading American conglomerate, contributed to advancements in submarine technology during and after World War II. The company's involvement in the Manhattan Project, which developed nuclear technology, had a significant impact on submarine propulsion systems.
One notable advancement was the introduction of nuclear-powered submarines, which offered unprecedented endurance and speed. The USS Nautilus, launched in 1954, was the first nuclear-powered submarine, utilising a pressurised water reactor. This technology allowed the submarine to run quietly and efficiently for extended periods without refuelling, revolutionising underwater warfare and strategic defence.
Diesel-electric submarines, which combined diesel engines with electric batteries, also played a pivotal role during World War II. They offered improved design, combat capability, and the ability to remain submerged for extended periods, making them ideal for deterrence missions. While generally less expensive and easier to maintain than nuclear submarines, they had limitations in range and submerged duration.
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X-ray technology to identify problems in weaponry
X-ray technology was used extensively during World War II to identify and treat wounded soldiers, as well as to inspect war materials. The use of X-rays in the medical field allowed doctors to locate foreign objects, such as bullets, in patients' bodies, and guided surgeries.
General Electric played a significant role in advancing X-ray technology during this period. In 1926, General Electric merged with the Victor Electric Company, which had been manufacturing X-ray machines since 1896, to form the General Electric X-Ray Corporation. This merger brought renewed energy to the company, and Victor's X-ray equipment was soon sold and serviced in nearly 70 countries.
During World War II, the demand for X-ray equipment increased, and the General Electric X-Ray Corporation devoted its resources to meeting the needs of the military. The company's expertise in X-ray technology was crucial in the development of mobile X-ray units that could be easily transported and used in field hospitals or even at the bedside in wards. These mobile units revolutionised battlefield medicine by bringing X-ray capabilities directly to the front lines, where they could be used to quickly assess and treat wounded soldiers.
In addition to medical applications, General Electric's X-ray technology was also utilised during World War II for non-destructive testing of war materials. This allowed for the inspection of weaponry and other equipment without damaging them, ensuring their integrity and proper functioning. The use of X-rays in this manner played a crucial role in quality control and maintenance, contributing to the overall effectiveness of the military's arsenal.
After World War II, the General Electric X-Ray Corporation continued to thrive and expand. In 1947, the company moved to a larger site in West Milwaukee, Wisconsin, to increase its production capacity and tap into the local glass-blowing talent for the hand-blown glass X-ray tubes. The company's focus shifted more towards the medical field, and in the following decades, it developed a range of innovative medical equipment, including patient monitoring devices, pacemakers, and CT scanners.
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Development of the cavity magnetron for radar
The cavity magnetron was a significant development in radar technology during World War II. Radar, or Radio Detection and Ranging, was being developed in several countries during the 1930s, with the United Kingdom being the first to use it for air defence. The early Chain Home radar system used large aerials and wavelengths of 15 to 30 meters. However, it was recognised that shorter wavelengths would make radar more compact, robust, and effective, allowing it to be fitted into aircraft and ships.
In 1939, a team led by Professor Mark Oliphant at the University of Birmingham was tasked with creating a radio valve that could transmit powerful emissions at a wavelength of approximately 10 cm. This team included Harry Boot and J. T. Randall, who were assigned a device called the "magnetron" for further development. The cavity magnetron, as it came to be known, was a revolutionary improvement introduced by Randall and Boot in 1940. Their initial design consisted of a cylindrical piece of metal with a cathode running through a central hole, surrounded by an anode with a series of symmetrical cavities arranged in a circle.
Within weeks of the initial design, engineers at the General Electric Company (GEC) in Wembley, London, improved the power output to over a kilowatt, and by 1941, they had achieved over 100 kilowatts. This allowed for the reduction of radar system sizes by several orders of magnitude, as high-power pulses could be generated from a device as small as a book. The cavity magnetron became the preferred source of very high-frequency radio waves in radar devices, and its invention changed the course of the war by enabling the development of airborne radar systems.
Following the war, the cavity magnetron found numerous peaceful commercial applications, most notably becoming the key technology in microwave ovens.
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GE's work on improving the performance of U.S. planes
While GE Schenectady did not build planes, it developed a host of systems and components to improve the performance of many U.S. aircraft. GE's work on improving the performance of U.S. planes was a significant aspect of its contribution to World War II. The company's innovations in this area were not glamorous, but they were crucial to the success of the Allied forces.
One of the key contributions of GE Schenectady was the development of autopilot systems and remote turret controls for aircraft. These advancements allowed pilots and crew to stay fresher, fly longer, and fight more effectively. The autopilot system reduced the workload on pilots, allowing them to conserve their energy and focus on critical tasks during long missions. Additionally, the remote turret controls enhanced the aircraft's offensive capabilities, enabling the crew to engage enemies more efficiently.
GE Schenectady also played a crucial role in the development of heated flight suits and goggles for high-altitude missions. With the interior temperature of aircraft like the B-29 Superfortress bomber dropping below freezing at high altitudes, these heated suits and goggles were essential for the safety and effectiveness of the crew. This technology proved vital for critical missions such as the bombing of Hiroshima and Nagasaki.
The B-29 Superfortress bomber is another testament to GE Schenectady's expertise. The company developed more components for this aircraft than any other entity. Power supply systems and voltage regulators were among the critical contributions that enabled the B-29 to undertake its strategic missions.
GE's work on improving aircraft performance extended beyond individual components and systems. The company's expertise in propulsion technology, honed through its work with the U.S. Navy and Merchant Marine, also benefited the aircraft industry. GE's geared turbine drives, initially designed for destroyers, were later adapted for use in new battleships, cruisers, and aircraft. This technology reduced fuel consumption, enhancing the range and endurance of these vessels and aircraft.
In conclusion, while GE Schenectady may not have built planes, its contributions to improving their performance were indispensable to the Allied victory in World War II. From autopilot systems and remote turret controls to heated flight gear and advanced propulsion technology, GE's innovations enhanced the capabilities and effectiveness of U.S. aircraft and their crews.
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Frequently asked questions
General Electric made several significant contributions to the Allied war effort during World War II. This included the development of propulsion units for US Navy ships and the US Merchant Marine, as well as the production of diesel-electric propulsion units for submarines. GE also worked on improving the performance of US planes, developing systems and components such as autopilot and remote turret controls.
General Electric developed X-ray testing systems to identify problems in bomb casings and fuses, as well as portable units to identify live, unexploded ordnance. They also developed heated flight suits and goggles, which were used in the bombing of Hiroshima and Nagasaki.
General Electric developed rugged freezers, refrigerators, cooking ranges, fans, and fire suppression systems for use on ships and in field installations. They also made advances in communications technology and lighting equipment.
Much of General Electric's World War II work was conducted in Schenectady and Niskayuna.
