The modern age of powered flight began in 1903 when Orville Wright made the first sustained, powered flight on December 17 in a plane he and his brother Wilbur built. This twelve-second flight led to the development of the first practical airplane in 1905 and launched worldwide efforts to build better flying machines. As a result, the early 20th century witnessed myriad aviation developments as new planes and technologies entered service. During World War I, the airplane also proved its effectiveness as a military tool and, with the advent of early airmail service, showed great promise for commercial applications.
Despite limited post-World War I technical developments, early aviation remained a dangerous business. Flying conditions proved difficult since the only navigation devices available to most pilots were magnetic compasses. Pilots flew 200 to 500 feet above ground so they could navigate by roads and railways. Low visibility and night landings were made using bonfires on the field as lighting. Fatal accidents were routine.
The Air Mail Act of 1925 facilitated the creation of a profitable commercial airline industry, and airline companies such as Pan American Airways, Western Air Express, and Ford Air Transport Service began scheduled commercial passenger service. By the mid-1930s, the four major domestic airlines that dominated commercial travel for most of the 20th century began operations: United, American, Eastern, and Transcontinental and Western Air (TWA).
As air travel increased, some airport operators, hoping to improve safety, began providing an early form of air traffic control (ATC) based on visual signals. Early controllers stood on the field and waved flags to communicate with pilots. Archie League, the system's first flagmen, began work in the late 1920s at the airfield in St. Louis, Missouri.
The modern age of powered flight began in 1903 when Orville Wright made the first sustained, powered flight on December 17 in a plane he and his brother Wilbur built. This twelve-second flight led to the development of the first practical airplane in 1905 and launched worldwide efforts to build better flying machines. As a result, the early 20th century witnessed myriad aviation developments as new planes and technologies entered service. During World War I, the airplane also proved its effectiveness as a military tool and, with the advent of early airmail service, showed great promise for commercial applications.Despite limited post-World War I technical developments, early aviation remained a dangerous business. Flying conditions proved difficult since the only navigation devices available to most pilots were magnetic compasses. Pilots flew 200 to 500 feet above ground so they could navigate by roads and railways. Low visibility and night landings were made using bonfires on the field as lighting. Fatal accidents were routine.The Air Mail Act of 1925 facilitated the creation of a profitable commercial airline industry, and airline companies such as Pan American Airways, Western Air Express, and Ford Air Transport Service began scheduled commercial passenger service. By the mid-1930s, the four major domestic airlines that dominated commercial travel for most of the 20th century began operations: United, American, Eastern, and Transcontinental and Western Air (TWA).As air travel increased, some airport operators, hoping to improve safety, began providing an early form of air traffic control (ATC) based on visual signals. Early controllers stood on the field and waved flags to communicate with pilots. Archie League, the system's first flagmen, began work in the late 1920s at the airfield in St. Louis, Missouri.
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