Reticle: A pattern of lines, dots, cross hairs, etc. used in a sighting device (HUD, gunsight).
Roll-in: The method of getting from level flight into a dive at a sharp angle to the original flight path.
Roll-out: Rolling the wings level and upright to complete the roll-in and establish the dive.
Rolling Pullout: Recovering from the dive with wings not level; applying a roll input during dive recovery
may cause overstress.
Run-in Line: A line that represents the aircraft's ground track or anticipated ground track in a dive. An
established run-in track on a practice target range.
Safe: Master armament switch is off.
Sight Angle: See Sight Depression Angle.
Sight Depression Angle: The degree to which the line of sight is below the line of flight; measured in
Sight Picture: The reticle and the target as they appear together, superimposed.
Simo Run: Simultaneous run; two (or more) aircraft in the roll-in or dive at the same time.
Slant Range: The distance from the aircraft to the target measured in a straight line.
Straight-path Tracking: The portion of the dive where the aircraft's path through the air is a straight
line, with the pipper moving continuously toward the target.
Switchology: Managing the positions of the various armament control switches to release the desired
Target Fixation: The act of looking at the target only, paying no attention to flight instruments or proxim-
ity to the ground.
Time of Fall: The time a weapon spends in the air from release to impact.
Time of Flight: See Time of Fall.