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Toward Mach 2 - The Douglas D-558 Program (Paperback)
Loot Price: R474
Discovery Miles 4 740
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Toward Mach 2 - The Douglas D-558 Program (Paperback)
Series: NASA History
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Loot Price R474
Discovery Miles 4 740
Expected to ship within 10 - 15 working days
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In the long and proud history of flight research at what is now
called the NASA Dryden Flight Research Center, the D-558 project
holds a special place as being one of the earliest and most
productive flight research efforts conducted here. Data from the
D-558 and the early X-planes enabled researchers at what became
NASA's Langley Research Center to correlate and correct test
results from wind tunnels with actual flight values. Then, the
combined results of flight and wind-tunnel testing enabled the U.S.
aeronautical community to solve many of the problems that occur in
the transonic speed range (about 0.8 to 1.2 times the speed of
sound), such as pitch-up, buffeting, and other instabilities. This
enabled reliable and routine flight of such aircraft as the century
series of fighters (F-100, F-102, F-104, etc.) as well as all
commercial transport aircraft from the mid-1950s to the present.
The Douglas D-558-1 Skystreak and D-558-2 Skyrocket were, with the
Bell XS-1, the earliest transonic research aircraft built in this
country to gather data so the aviation community could understand
what was happening when aircraft approached the speed of sound
(roughly 741 miles per hour at sea level in dry air at 32 degrees
Fahrenheit). In the early 1940s, fighter (actually, in the terms of
the time, pursuit) aircraft like the P-38 Lightning were
approaching these speeds in dives and either could not get out of
the dives before hitting the ground or were breaking apart from the
effects of compressibility-increased density and disturbed airflow
as the speed approached that of sound and created shock waves.
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