commonly, the aircraft or gun it was attached to. They were also known as "moving spot indicators" or "flying spot indicators" in the UK, the moving spot being the target blip. Range is typically displayed separately in these cases, often using a second display as an L-scope.

Almost identical to the C-scope is the G-scope, which overlays a graphical representation of the range to the target. This is typically represented by a horizontal line that "grows" out from the target indicator blip to form a wing-like shape. The wings grew