Auxiliary to Azimuth

Auxiliary air inlake

Auxiliary air intake. (Auto.) An opening to permit the admission of additional air to the carburetor when the car is being operated at high speed.
Auxiliary airport beacon. (Aero.) A beacon light, usualIy of lower can­die power than the main airport beacon light. It is placed on the airport site to indicate the specific location of an airport that has a separate airport beacon which is visible to a greater distance to in­dicate the general location of the airport.
Auxiliary airvalve carburetor. (Auto. Mech.) A carburetor with an air valve designed to control the richness of the mixture.
Auxiiliary airway beacon. (Aero.) A beacon light, usualIy of lower can­dIe power than the principal air­way beacon lights, marks special features of the terrain along an air­way, or otherwise supplements the principal airway beacons.
Average. A medial sum; a median; a mean proportion of many cases. Aviation. (Aero.) The art or science
of airplane operation.
Aviator. (Aero.) The pilot of aircraft
heavier than air.
Avodire. (Wood) A fine cabinet wood native to the west coast of Africa. Introduced into the United States about 1925 and has become very popular. Colour dull white to golden cream with beautiful grain effects.

Avoirdupois weight.

Tl 11/32 grains =] dram (dr.) (g.)
16 drams = 1 ounce (oz.)
]6 ounces = 1 pound (lb.)
25 pounds = 1 quarter
4 quarters = 1 cwt.
2000 pounds = 1 short ton
2240 pounds = 1 long ton
A.W.G. (American wire gauge) Adopted as a standard for gaug­ing the size of wires used for elec­trical purposes.awl. A small pointed tool for mak­'ing holes for nails or screws, or, asin leather, for thread.
Awl haft. An awl handle.
Axes of an aircraft (Aero.). Threefixed lines of reference, usually centroidal and mutually perpen­dicualr. The horizontal 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. In math­
ematical discussions, the first of these axes, drawn from rear to (ront, is called the X-axis; the second drawn downward, the Z­axis; and the third, running from left to right, the Y-axis.
Axial force (Engin.). A force which acts uniformly over the section of a prismatic body so that its resultant coincides 'with the axis' of the ~ody.

Axial pitch to Aziumth
Axial pitch:-More commonly reffered to as pitch may be described as the amount of advance per revolution of a single screw thread.
Axialtype engine (Aero.). An engine having its cylinders equidistant from and parallel to the main shaft. Power is transmitted to the shaft through a wabble plate, swash plate, or gears.
Axiom (Math.). Self-evident truth,
universally accepted.
Axis (Math.). A central line consid­
ered in relation to certain geometri­
calor mechanical relations. A point
or line about which or on which a
body revolves. .
Axis of symmetry (Geom.). An im­aginary central line around which a symmetrically developed body is
formed, and in which the center of gravity is found.
Axle. A shaft or device which carries the driving, travelling, or truck wheels of a vehicle, such as a locomotive, wagon, trolley, auto­

Ayrton galvanometer shunt. (Elec.) A shunt in which the voils are so &rranged that their relative multi­plying power is always the same; the 'U,niversal shunt.
Azimuth. The arc of the horizon measured clockwise from the south point. in astronomy, or from the north point, in navigation, to the point where a vertical circle through a given heavenly body intersect the horizon.
Azimuth alignment. The process of aligning the playback or record head gap to perpendicular to the direction of tape motion.
Azimuth of a line. The angle which the vertical plane containing it makes with the plane of merid­ian.