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The speed of sound in steam is predictable if steam dryness is known. [45] Also, the specific volume of steam for a given temperature decreases with decreasing dryness. [46] [39] Two examples of estimates of speed of sound in steam calculated from whistles blown under field conditions are 1,326 and 1,352 feet per second. [47]
North American steam locomotive whistles have different sounds from one another. They come in many forms, from tiny little single-note shriekers to larger plain whistles with deeper tones (a deep, plain train whistle is the "hooter" of the Norfolk & Western, used on their A- and Y-class Mallet locomotives). Even more well known were the multi ...
A calliope (see below for pronunciation) is a North American musical instrument that produces sound by sending a gas, originally steam or, more recently, compressed air, through large whistles—originally locomotive whistles. A calliope is typically very loud. Even some small calliopes are audible for miles. There is no way to vary tone or volume.
According to section 11 of Transport Canada's Locomotive Design Requirements, all Canadian-owned passenger train locomotives must be equipped with a dual-tone horn capable of producing a soft sound in normal operating mode and a loud sound in emergency situations. [12] To comply with federal requirements, passenger railways use the Nathan K5CA-LS.
Steam whistle from a supertanker, in Merseyside Maritime Museum, United Kingdom An air horn is a pneumatic device designed to create an extremely loud noise for signaling purposes. It usually consists of a source which produces compressed air , which passes into a horn through a reed or diaphragm.
Listening to the York Factory Whistle Concert early Christmas morning has been a tradition for generations. The concert, which features eerie-sounding holiday songs, is set for 12:10 a.m. on Dec ...
According to NOAA, the Whistle is similar to volcanogenic sounds previously recorded in the Mariana volcanic arc of the Pacific Ocean. NOAA also stated that locating the source of an event requires at least three recording instruments, and since the Whistle was only recorded on the NW hydrophone, the sound could have traveled a great distance ...
Rail squeal is a sound caused by a train's wheels slipping under specific conditions, usually around sharp curves. [4] Air displacement of a train in a tunnel can create noise from turbulence. Trains also use horns, whistles, bells, and other noise-making devices for both communications and warnings.