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Has anyone managed to get TT120 semaphore signals


Steve-353799

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Hello gang I have had a good look around but TT120 semaphore signals seem to be somewhat of a rarity. Has anyone been able to source any?

Also, some have said that the Dapol N gauge semaphores are pretty generous and are a good fit scale wise.

Would anyone be able to confirm this?

Thanks

Steve

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Just come across this on some dimensions regards semaphore signals.

Also, the Dapol N gauge signal is 52mm tall so on my reckoning 52x120= 6240. Just over 20 feet tall. So, the Dapol signal should be in the ball park me thinks? If you wanted to make it a little taller, I suppose you could always put it on a 2/3mm plinth.

"That information seems to be quite hard to find on the net, so I dug out my copy of Derek Mundy's Signals for the Railway Modeller, and while there are no definitive numbers, here are a few random dimensional quotes and figures...

 

- height from rail to signal - 15' to 35' (SR)

- signal always at or above the driver's eye height

- spacing between two signals on same mast - 6' (4' for calling on or smaller arm)

- signal arm usually 1'6" from top of post (not counting the finial)

- black paint line 4' from ground level

- lattice post (LSWR, SECR, NBR) - 20' to 60' tall

- table of standard lengths of tubular post (no specified company) - 17', 19', 21', 24', 26', 29', 31', 34', 36' (plus a few inches here and there)

- bracket signal, minimum spacing between dolls - 6'6" (10' for parallel running lines)

- various references to a 4' arm (the coloured bit, not including the black spectacle plate) or 2' calling-on arm

- the 10" wide white stripe being 11" back from the end of the arm on a home signal

- the 8" wide chevron on a distant being 12" back from the edge

 

Then, in Railway Signal Engineering (Mechanical) by Lewis, 1932...

- "Some companies had the sizes of wooden arms made proportional to the height of the post..."

- as a rule, arms on brackets were made shorter than on single posts to keep the brackets as short as possible

- standard lengths of wooden signal arms, centre of signal post to tip of arm...

 - main line 5'0" x 12" or 4'6" x 10"

 - main line to goods line 4'0" x 12" or 3'6" x 10"

 - main line to siding 3'0" x 9" or 2'0" x 6"

 - sidings 2'6" x 8" or 2'0" x 6"

 

Measuring a couple of Ratio and MSE signal arms on mine, the coloured portion of the main arms is 4' plus another 6"-12" or so of black to the centre of the post, or 3' for backing/siding signals."

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