Imaginary lines about which an aeroplane may change its attitude of flight. An aeroplane has three axes. They are: Lateral Axis. The straight line through the Centre of Gravity parallel to a line which would join the wing tips. (ii) Londitudinal Axis. The straight line through the Centre of Gravity parallel to a line which would join nose to tail. (iii) Normal Axis. The straight line through the Centre of Gravity at right angles to the lateral axis and the longitudinal axis. When an aeroplane is flying so that the longitudinal axis and the lateral axis are horizontal the normal axis is vertical. There are also the Lift Axis, the straight line through the Centre of Gravity perpendicular to the relative air-stream, and the Drag Axis, the straight line though the Centre of Gravity parallel to the airstream.

Usually, two perpendicular lines used to establish a coordinate system.

define the three dimensions of the universe (X, Y and Z). The X axis represents the horizontal plane; if you move an object on the X axis, you are moving it left or right. The Y axis represents the vertical plane; if you move an object on the Y axis, you are moving it up or down. The Z axis represents the third dimension which gives objects depth; if you move an object on the Z axis, you are moving it closer or farther away from you.

NAMOT assigns its axes in accordance with the Cambridge convention. X-points out to the major groove Y-points to the first strand. Z-points in the 5' to 3' direction of the first strand.

A visual representation of where brand opportunity lies.

edges of a chart which are marked off in even sections