SN.D4: Difference between revisions
Jump to navigation
Jump to search
(Created page with "Back to Control Functions ==Origin== ... ==Removal of Auto Plate== The WON, in February 1987, claimed that SN.D4 had been converted to a controlled signal. [[File: 19...") |
(No difference)
|
Revision as of 21:19, 15 November 2014
Back to Control Functions
Origin
...
Removal of Auto Plate
The WON, in February 1987, claimed that SN.D4 had been converted to a controlled signal.
However, it is probable that the signal continued to be an automatic in terms of its technical operation, albeit fitted with an emergency replacement switch, and the removal of the auto-plate was simply for the benefit of drivers treating it as a controlled signal. (This possibly had something to do with Hullavington Ground Frame in the section ahead?)
In later years, despite the box instruction remaining to the contrary, an auto plate re-appeared on SN.D4 (2010+).