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Related to lead angle: helix angle
lead angle[′lēd ‚aŋ·gəl]
The angle that the tangent to a helix makes with the plane normal to the axis of the helix.
The angle at the point of welding between an electrode and a line perpendicular to the weld axis.
The angle between the line of sight to a moving target and the line of sight to a point ahead of the target.
A dropping angle.
The phase difference between a sinusoidally varying quantity and a reference quantity which varies sinusoidally at the same frequency, when this phase difference is positive. Also known as angle of lead; lead; phase lead.
ii. The angular difference between the line of sight and an aiming line. Also called the angle of lead