Search results
Results From The WOW.Com Content Network
Improver Corporation v Remington Consumer Product Limited [1990] F.S.R. 181 is a leading United Kingdom case on patent infringement, particularly in relation to how to establish what specifically a patent covers.
Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. [1] Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft's drag. Wingtip devices can also improve aircraft handling characteristics and enhance safety for ...
Closed wing designs include the annular wing (commonly known as the cylindrical or ring wing), the joined wing, the box wing, and spiroid tip devices. [ 1 ] Like many wingtip devices , the closed wing aims to reduce the wasteful effects associated with wingtip vortices that occur at the tips of conventional wings.
The nearer the wing is to the ground, the more pronounced the ground effect becomes. While in the ground effect, the wing requires a lower angle of attack to produce the same amount of lift. In wind tunnel tests, in which the angle of attack and airspeed remain constant, an increase in the lift coefficient ensues, [ 9 ] which accounts for the ...
You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.
Supercritical airfoils feature four main benefits: they have a higher drag-divergence Mach number, [21] they develop shock waves farther aft than traditional airfoils, [22] they greatly reduce shock-induced boundary layer separation, and their geometry allows more efficient wing design (e.g., a thicker wing and/or reduced wing sweep, each of which may allow a lighter wing).
Vortilons are often used to improve low-speed aileron performance, [1] [7] thereby increasing resistance to spin. They can be used as an alternative to wing fences, which also restrict airflow along the span of the wing. [1] Vortilons only stream vortices at high angles of attack [8] and produce less drag at higher speeds than wing fences. [9]
Wing twist is an aerodynamic feature added to aircraft wings to adjust lift distribution along the wing.. Often, the purpose of lift redistribution is to ensure that the wing tip is the last part of the wing surface to stall, for example when executing a roll or steep climb; it involves twisting the wingtip a small amount downwards in relation to the rest of the wing.