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.
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.
- ↑ 1.0 1.1 1.2 Signalling Notice No. 64
- ↑ Notice LXO.77
- ↑ Notice S.2546
- ↑ Signalling Notice 31/W/2770