DM.81

DM.81 (left), SN.662R, right

Back to Control Functions

Origin

The signal was brought into use in December 1977.

[The WON entry shows that the signal replacing SN.60, but as SN.60 had a different number and a different position, this is being treated as a separate signal.]

The signal was given the capability to flash single yellow when the next signal, SN.62, was displaying proceed with the route set towards the Down Badminton, in May 1979.