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LGB Track & Switches Most people from smaller scales will naturally express themselves in radius. Well, LGB, who basically "started" Large Scale, used Diameter, for what reason, people can only speculate. (Probably to know what space a simple loop would occupy, since space is ALWAYS an issue) LGB also expressed it's Diameters as "R" curves (could it be more confusing?" LGB "R"
number
| common LGB
track number
| degrees
per section
| switch
number
| frog
number
| true radius
MM | true diameter
MM
| true diameter
inches
| true radius
inches
| closest foot
diameter
| closest foot
radius
| | R1 | 11000 | 30 | 12000 | 2 | | 1200
| 47.24 | 23.63 | 4' | 2' | | R2 | 15000 | 30 | none
| | 765 | 1530 | 60.24 | 30.12 | 5' | 2-1/2' | | R3 | 16000 | 22.5 | 16000 | 3.5 | 1175 | 2390 | 94.09 | 47.05 | 8' | 4' | | R4 | see note
| | | | | ~3500
| | | ~11-1/2' | | | R5 | 18000 | 15 | 18000 | 5 | | 4640 | 182.68 | 91.34 | 15' | 7-1/2' |
Note: Tom Trigg indicates that at one time there was an R4 turnout which was also supplied with a single piece of curved track as a "parallel track" adapter. Maybe in the early 80's. ALL the LGB switches are "curved" meaning that the rails beyond the frog are curved not straight as in a prototype switch. Many manufacturers did this to match their curved track, especially with the ultra-sharp curves made initially. The equivalent "frog number" of various LGB switches listed above are close approximations.
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Last Updated on Sunday, 25 July 2010 22:05 |
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