Manual of Military Aviation...George Banta Publishing Company, 1917 - 308 pages |
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Common terms and phrases
adjusted aerial aero aeronautic ailerons air service aircraft airplane airship altitude angle angle of incidence anti-aircraft armor Army artillery attached aviator barograph biplane blade bolts bombs cable camshaft carburetor carried chassis clouds cockpit combat commander craft crankshaft cylinder defense device direction dirigible dope duties edge efficiency employed engine beds equipment factor of safety feet field fire fire-control fittings flight flying forces front fuel fuselage gasoline gear glide ground gunner horizontal hostile inches installed instruments kite balloon landing load located low pressure area machine guns magneto maneuvers metal military motor mounted normal observation obtained operations patrol pilot piston planes position power plant practice pressure propeller rear reconnaissance safety seaplanes signal solder spar speed squadron stability stations steel strips struts surface tactical tail tests tion tractor triplane tube turnbuckle units upper plane valve vertical weather weight wheels wind wing tip wood
Popular passages
Page 291 - Gliding. — The angle the flight path makes with the horizontal when flying in still air under the influence of gravity alone.
Page 301 - ... when no shutter is suitable or available, in a similar manner to the flag or torch, the first position being a vertical one. A movement of the beam 90°...
Page 302 - The first motion (the dot) is to the right of the sender, and will embrace an arc of 90", starting with the vertical and returning to it, and will be made in a plane at right angles to the line connecting the two stations. The second motion (the dash) is a similar motion to the left of the sender. The third motion (front) is downward directly in front of the sender and instantly returned upward to the first position.
Page 297 - STATOSCOPE : An instrument to detect the existence of a small rate of ascent • or descent, principally used in ballooning. STAY : A wire, rope, or the like, used as a tie piece to hold parts together, or to contribute stiffness ; for example, the stays of the wing and body trussing. STEP: A break in the form of the bottom of a float. STREAM-LINE FLOW : A term in hydromechanics to describe the condition of continuous flow of a fluid, as distinguished from eddying flow where discontinuity takes place.
Page 297 - ... gap; it is considered positive when the upper surface is forward. STALLING: A term describing the condition of an airplane which from any cause has lost the relative speed necessary for control.
Page 290 - A movable auxiliary surface used to produce a rolling moment about the fore-and-aft axis. AIRCRAFT: Any form of craft designed for the navigation of the air — airplanes, balloons, dirigibles, helicopters, kites, kite balloons, ornithopters, gliders, etc. AIRPLANE: A form of aircraft heavier than air which has wing surfaces for support in the air, with stabilizing surfaces, rudders for steering, and power plant for propulsion through the air.
Page 293 - A hinged surface for controlling the longitudinal attitude of an aircraft — ie, its rotation about the athwartship axis. ENGINE RIGHT OR LEFT HAND: The distinction between a right-hand and a left-hand engine depends on the rotation of the output shaft, whether this shaft rotates in the same direction as the crank or not. A righthand engine is one in which, when viewed from the output shaft end, the shaft is seen to rotate anticlockwise.
Page 292 - CAMBER: The convexity or rise of the curve of an aerofoil from its chord, usually expressed as the ratio of the maximum departure of the curve from the chord to the length of the chord. "Top camber...
Page 291 - AXES OF AN AIRCRAFT: Three fixed lines of reference; usually centroidal and mutually rectangular. The principal longitudinal axis in the plane of symmetry, usually parallel to the axis of the propeller, is called the longitudinal axis; the axis perpendicular to this in the plane of symmetry is called the normal axis; and the third axis, perpendicular to the other two, is called the lateral axis.
Page 292 - To incline an airplane laterally — ie, to roll it about the fore and aft axis. Right bank is to incline the airplane with the right wing down Also used as a noun to describe the position of an airplane when its lateral axis is inclined to the horizontal.