Results 261 to 270 of about 46,505 (316)
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Aircraft Engineering and Aerospace Technology, 1963
THE overall design philosophy of the DAC One‐Elcvcn has already been described in the preceding papers on operating economics and systems—so that this article sets out to extend that information by explaining how the aerodynamic features of the aircraft enable the spscification of this short‐range twin jet to be met.
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THE overall design philosophy of the DAC One‐Elcvcn has already been described in the preceding papers on operating economics and systems—so that this article sets out to extend that information by explaining how the aerodynamic features of the aircraft enable the spscification of this short‐range twin jet to be met.
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Design, aerodynamics and autonomy of the DelFly
Bioinspiration & Biomimetics, 2012One of the major challenges in robotics is to develop a fly-like robot that can autonomously fly around in unknown environments. In this paper, we discuss the current state of the DelFly project, in which we follow a top-down approach to ever smaller and more autonomous ornithopters.
G C H E, de Croon +5 more
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Aircraft Engineering and Aerospace Technology, 1965
SINCE its original conception, the project has grown from an aircraft of 8,600 lb. all‐up‐weight with two 340 h.p. piston engines, to the present turbine‐powered Skyvan of 12,500 lb. all‐up‐weight with two 666 e.h.p. turbine engines. This has caused some minor changes to be made in certain aerodynamic design features of the aircraft but the necessary ...
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SINCE its original conception, the project has grown from an aircraft of 8,600 lb. all‐up‐weight with two 340 h.p. piston engines, to the present turbine‐powered Skyvan of 12,500 lb. all‐up‐weight with two 666 e.h.p. turbine engines. This has caused some minor changes to be made in certain aerodynamic design features of the aircraft but the necessary ...
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Turbocharger aerodynamic design
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 1999The aerodynamic design of turbochargers is described, covering radial compressors and turbines and also axial turbines. The paper concentrates upon those aspects that are peculiar to turbocharger design, including the approach adopted, and highlights the importance of company-specific empirical data.
D Flaxington, E Swain
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Aircraft Engineering and Aerospace Technology, 1973
THE AERODYNAMIC DESIGN of the VAK 191B is a logical output of some basic design requirements.
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THE AERODYNAMIC DESIGN of the VAK 191B is a logical output of some basic design requirements.
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Aircraft Engineering and Aerospace Technology, 1969
The performance criterion for engine power for aircraft of the Skyvan type is related to the single engine climb gradient in the en route configuration. The required engine power (M.C.P.) was specified such as to give a payload capability of 3,500 lb. at an ambient condition of ISA plus 20 deg. C. By use of such a specification the effects of different
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The performance criterion for engine power for aircraft of the Skyvan type is related to the single engine climb gradient in the en route configuration. The required engine power (M.C.P.) was specified such as to give a payload capability of 3,500 lb. at an ambient condition of ISA plus 20 deg. C. By use of such a specification the effects of different
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The Aeronautical Journal, 1969
I am very conscious of the great honour of being invited to deliver this fourth Reynolds-Prandtl Lecture. At the same time, I am very pleased. As far as I am concerned, the spirit of these two great scientists is still alive. They are both with me every day—at least, I have pictures of them in my office and I look at them every day.
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I am very conscious of the great honour of being invited to deliver this fourth Reynolds-Prandtl Lecture. At the same time, I am very pleased. As far as I am concerned, the spirit of these two great scientists is still alive. They are both with me every day—at least, I have pictures of them in my office and I look at them every day.
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On the Coupling of Aerodynamic and Structural Design
Journal of Computational Physics, 1997The symbol of the Hessian for a static aeroelastic optimization model problem is analyzed for the optimization of a plate's shape and rigidity distribution with respect to a given cost function. The flow is modeled by the small-disturbance full-potential equation, and the structure is modeled by an isotropic (von Kármán) plate equation.
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Aircraft Engineering and Aerospace Technology, 1939
A PHYSICIST addressing an informal gathering recently was asked by one of his audience if lie could put Einstein's relativity theory in a nutshell. The task of covering in one short article the whole realm of problems which arise in the aerodynamic design of an aeroplane to‐day, though not so exacting, is still formidable.
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A PHYSICIST addressing an informal gathering recently was asked by one of his audience if lie could put Einstein's relativity theory in a nutshell. The task of covering in one short article the whole realm of problems which arise in the aerodynamic design of an aeroplane to‐day, though not so exacting, is still formidable.
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Optimum Design in Aerodynamics *
IFAC Proceedings Volumes, 1983Abstract We use optimal control methods to solve a free boundary constrained problem. The boundary is considered as a control ; the constraint is written as a criterion that we must minimize. But we cannot already hope to demonstrate the existence and uniqueness of a solution to this problem, since the existing theories only consider a convex ...
D. Volpert, D. Kalfon
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