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The Sukhoi Su-47 being followed by two Su-27s.The Su-47 uses a forward wing sweep, while the Su-27s sport a more conventional backward-swept design.. A swept wing is a wing angled either backward or occasionally forward from its root rather than perpendicular to the fuselage.
One problem with the forward-swept design is that when a swept wing yaws sideways (moves about its vertical axis), one wing retreats while the other advances. On a forward-swept design, this reduces the sweep of the rearward wing, increasing its drag and pushing it further back, increasing the amount of yaw and leading to directional instability.
SWEEPS search area. SWEEPS search area detail. The stars that were monitored in this astronomical survey were all located in the Sagittarius-I Window. [2] The Sagittarius Window is a rare view to the Milky Way's central bulge stars: our view to most of the galaxy's central stars is generally blocked by lanes of dust. [3]
The projected HG II combined the low-drag canopy with a 35° wing sweep and a V-tail (butterfly tail). The HG III had a conventional tail, but a 45° wing sweep and turbines embedded in the wing roots. [111] Messerschmitt also conducted a series of flight tests with the series production Me 262.
After the 1908 Olympics, a sweep became an increasingly treasured status symbol of national dominance in an event. 1964 was the first Olympiad to have no sweeps. Since then there were no sweeps in 1972, 1996 and 2000. Sweeps have happened in every long term event in the individual program, except the 5000 metres.
For decades, federal immigration agents generally avoided conducting enforcement sweeps or detentions at or near what the federal government deemed "sensitive" areas, including schools and ...
A variable-sweep wing (swing-wing) is a type of pivoted wing that takes advantage of the aerodynamics of a swept wing at high speeds while swinging straight to avoiding the drawbacks of such a design at lower speeds.
The Boeing 747 is a large, wide-body (two-aisle) airliner with four wing-mounted engines. Its wings have a high sweep angle of 37.5° for a fast, efficient cruise speed [21] of Mach 0.84 to 0.88, depending on the variant. The sweep also reduces the wingspan, allowing the 747 to use existing hangars.