NAJMABADI KIOUMARSCOLEMAN EDWARD EEVAND MONTE RBLEEG ROBERT JBREUHAUS RICHARD SNELSON TIMOTHY AANDERSON DORR MARSHALLUS6325333 * Jul 20, 2000 Dec 4, 2001 The Boeing Company Aircraft pitch-axis stability and command augmentation system
Aiming at the noise control of the airframe, the small-scale wavy control method of the slat wing cove and large-scale wavy control method of landing gear support strut are proposed. The numerical results show that the slat cove is the main noise source of the high lift devices. The noise...
6. A high-lift aircraft having a center-of-gravity and comprising: Description: BACKGROUND The present invention relates generally to aerial vehicles and more specifically to a high-lift aircraft having stability and control, performance, and noise characteristics superior to those of current high-li...
and to achieve an approximately uniform distribution of surface area and lift between the two wings. In this case an automatic flight controller, for example in the form of control software for controlling corresponding actuators, is provided in order to provide the aircraft with artificial stability...
15. The invention according to claim 8 wherein the aircraft further includes means producing pitch, roll, and yaw stabilizing inputs, summing means to combine the pilot's yaw control signal to the yaw stability input to produce a net trimmed yaw input signal, summing means to combine the pil...
and an actuator. The first opening is disposed forward of a center of gravity of the aircraft and the second opening is disposed rearward of the center of gravity of the aircraft to maintain stability of the aircraft. The first opening is coupled to the first storage tank and the second op...
the center of gravity of the assembly formed by said platform and an operator moving around on this platform falls inside the polygon defined by the support points of said base on the ground: this arrangement gives the trolley optimum stability when an operator is moving around on the platform...
and said set acting as pitch control of the aircraft when the respective vertical sets are operated at different differential amounts, a single wing near the top of the tall fuselage, the span of said wing being equal distance on each side of and orthogonal to the chord of said fuselage, ...
and vortex pumping engines, if not fully synchronized, may produce an unbalance or yaw effect on the aircraft increasing the problems of maintaining its stability. Likewise, the use of two or more engines to produce and maintain the free vortex and to provide the forward thrust increases the ...
An aircraft, the propulsive units of which include engines, and which is distinguished by reduced noise emissions, includes a wing structure fixed to an upper region of the fuselage, and a vertical tail system having at least two vertical stabilizers which are generally vertically fixed to the fu...