SN.89: Difference between revisions

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==Alterations in connection with Reversible Signalling==
From 19 June 1977 the signal was mounted on a right-hand cantilever, in readiness for the future installation of [[SN.693R]] on the same structure.
[[File: 1977-05.png|border]]
The reversible signalling was brought into use in 1981 <ref>Signalling Notice [[31/W/2770]]</ref>.


==Aspect Sequence==
==Aspect Sequence==

Revision as of 12:59, 15 November 2014

Link back to Control Functions.

Signal Details

Form of Signal: Colour Light
Type of Signal: Main Aspect
Number of Aspects: 3, 4 after 13 Sep 1993[1]
Line: Up Main
Working: Controlled
Interlocking: Uffington
Mileage: 67m 10ch
Mounting: Bracket, left of line, with SN.693R
Date into use: 30 May 1965[2]
Date onto Swindon Panel: 3 Mar 1968[3]
Date out of use: In use
Former names: UF22

Routes

ID Destination Next Signal JI SI Remarks
A Up Goods SN.91 1 - P/NP. Removed some time after 13 Sep 1993[1]
B Up Main SN.93 - - -

Alterations in connection with Reversible Signalling

From 19 June 1977 the signal was mounted on a right-hand cantilever, in readiness for the future installation of SN.693R on the same structure.

1977-05.png

The reversible signalling was brought into use in 1981 [4].

Aspect Sequence

YY aspect introduced on 13 Sep 1993 does not seem to have been brought into use on that date: "When SN.89 is displaying a green aspect, SN.93 may be displaying a yellow or green aspect" [1]. At what date was the YY brought into use, if ever?

SN.89 SN.91 SN.93 UM.65/SB.1014
R>Y R - -
G - Y R
Y - R -
R - - -

All data from BR(W) Uffington Locking Sketch, S277/2, Drawn Feb 76, Checked July 76. (9465) unless otherwise noted.