Monoplanes and Biplanes, Their Design, Construction and OperationMunn, Incorporated, 1911 - 331 Seiten |
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Monoplanes and Biplanes, Their Design, Construction and Operation: The ... Grover Cleveland Loening Keine Leseprobe verfügbar - 2015 |
Häufige Begriffe und Wortgruppen
50 horse-power Aero Aerophile aeroplane ailerons air stream angle of incidence Antoinette aspect ratio aviator BELMONT PARK Blériot XI braced Breguet causes center of gravity center of pressure chassis chord cloche Curtiss CURVED PLANES depth of curvature dihedral angle direction rudder Eiffel elevation rudder Etrich experiments FARMAN BIPLANE feet in area feet pitch flaps flat plane flight flown foot of surface friction FRONT ELEVATION fuselage Gnome Goupy Hanriot Henri Farman horizontal inclined keels Langley lever lift to drift lifted per horse-power Lilienthal Loading and Aspect main cell main plane main surface Maurice Farman Michelin miles an hour miles per hour monoplane mounted moved November Paulhan Pischof placed pounds are lifted pounds per square propeller pulled rear resistance ribs seat SIDE ELEVATION skids Sommer speed square foot Supporting Plane.-The tail total weight transverse control Transverse Control.-The turned velocity Voisin warping Wilbur Wright wing Wright machine Zeit
Beliebte Passagen
Seite 3 - Sir, said he, you have seen but a small part of what the mechanic sciences can perform. I have been long of opinion, that instead of the tardy conveyance of ships and chariots, man might use the swifter migration of wings ; that the fields of air are open to knowledge, and that only ignorance and idleness need crawl upon the ground.
Seite 48 - Resolution of Force Diagram for a Curved Plane considerably inclined forward of the perpendicular, with the result that the lift is increased and the drift decreased. He stated it as follows : When a wing with an arched surface is struck by the wind at an angle a with a velocity V, there will be generated a pressure P, which is not normal, but is the resultant of a force N, normal to the chord, and of another force T, tangential to the chord.
Seite 94 - ... variation in size of the different types, detailed and dimensioned plans and elevations of each machine are given. Most of these are drawn to the same scale, thus enabling a direct, graphic comparison of the types. But it must be borne in mind, inasmuch as aviators are constantly changing and rechanging the dimensions of their machines, without recording such alterations, many of the dimensions given here are necessarily approximate. In all cases, however, the most recent and accurate data, as...
Seite 267 - ... rarely exceeding two degrees. Renard, after deductions from the experiments of Borda, Langley, and other investigators, has enunciated the principle that, as the incident angle diminishes, the driving power expended in sustaining a given plane in the air also diminishes.
Seite 48 - ... as that of the cosine to the sine of the angle of incidence. But in curved surfaces a very remarkable situation is found. The pressure, instead of being uniformly normal to the chord of the arc, is usually inclined considerably in front of the perpendicular. The result is that the lift is greater and the drift less than if the pressure were normal.
Seite 49 - ... supporting powers when the angle of incidence becomes negative, ie, below the horizontal. The air pressure P becomes a propelling force at angles exceeding 3 degrees up to 30 degrees. As Chanute pointed out, this does not mean that there is no horizontal component, or drift, of the normal pressure N under these conditions, but that, at certain angles, the tangential pressure T, which would be parallel to the surface and only produce friction in the case of a flat plane, acts on a curved surface...
Seite 22 - If in a rare medium, consisting of equal particles freely disposed at equal distances from each other...
Seite 180 - Machine in Flight, Showing Ailerons and Position of Operator propeller has a diameter of 6 feet and a pitch of 5 feet. In more recent Curtiss machines, an eight-cylinder, V-type, four-cycle, aircooled motor of 50 horse-power is employed. General. The seat for the aviator is on the framing in front of the main .cell and in line with the motor, Fig. 15. When a passenger is carried, a seat is provided at one side and somewhat below the aviator. The machine runs on three pneumatic-tired wheels, rigidly...
Seite 48 - ... perpendicular to the surface and, as already pointed out, the ratio of lift to drift is, therefore, as the cosine to the sine of the angle of incidence. The angle of incidence is the angle at which the plane is inclined to the air current. But in curved surfaces, Fig. 20, as first shown by Lilienthal, the pressure is not uniformly normal to the chord of the arc, but is Fig. 20. Resolution of Force Diagram for a Curved Plane considerably inclined forward of the perpendicular, with the result that...