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Continental XR-1740-2, Sleeve Valve, Radial 14 Engine, ca. 1941. Creator: Continental
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Continental XR-1740-2, Sleeve Valve, Radial 14 Engine, ca. 1941. Creator: Continental
In 1925, Continental, a successful manufacturer of automotive engines, purchased the rights for a Burt-McCollum single-sleeve valve engine design. Believing this technology might replace poppet valves in aircraft engines, Continental announced the R-790 engine in 1927, incorporating single-sleeve valves initially installed on a Wright 9-cylinder engine. It was never fully tested, but followed by the 7-cylinder R-794, for which five engines were ordered by the U.S. Navy in 1934. It was tested, but did not go into production
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Media ID 23877475
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EDITORS COMMENTS
This print showcases the Continental XR-1740-2, a remarkable Sleeve Valve Radial 14 Engine from around 1941. Developed by Continental, a renowned manufacturer of automotive engines, this particular design was born out of their acquisition of the Burt-McCollum single-sleeve valve engine rights in 1925. With hopes that this innovative technology could potentially replace poppet valves in aircraft engines, Continental introduced the R-790 engine in 1927. Although it was never fully tested, it paved the way for further advancements such as the 7-cylinder R-794. During World War II, when aviation played a crucial role in transportation and defense efforts, five units of the R-794 were ordered by the U. S. Navy in 1934 and subjected to rigorous testing. Unfortunately, despite its promising performance during trials, it did not enter mass production. This photograph captures an important piece of American aviation history housed at the National Air and Space Museum (NASM). The image beautifully portrays this technological marvel with its intricate steel aluminum paint plastic copper stainless steel rubber magnesium components on display. As we admire this artifact from another era at NASM - one that represents both scientific progress and wartime ingenuity - we are reminded of how far propulsion technology has come since then. It serves as a testament to human innovation and our relentless pursuit of advancement in air transport.
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