What is the largest diameter curve on your layout (031, 072, etc) ? This information may help manufacturers in the real world. Mine is 042. JohnA
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080
Custom but normal (standard) for the mainline is O72.
George
027
John
O72
Atlas O sectional curves......0-108.... go big or go home !
0-27
Curt
Old Realtrak layout O-82 (may it rest in pieces)
New Atlas layout will have 108 in some stretches and 72 at the end of loops
O-42, though the next one will be O-72
o 128
Mainlines - O80 in the temporary section, O90 when complete. O72 in the yards, 054 for some spurs.
The mainline is O36, though I do have a piece of O72.
BTW, all O48 switches.
4x12 layout, so 042.
O-72 on 12'-by-8' layout.
O-54 on 10'-by-5' layout.
MELGAR
O72 on 9x14 layout
Realtrax o31
o 128
080
027
The largest curve is flex track, measured to be about 99" diameter. The tightest curve is O54 on a couple of industry sidings, other than that, O72 is the tightest curve.
057 flex track
072
6 by 18 somewhat of a half dog bone. Dual mainline 060/048. In transition, space may dictate losing the 060 as I am finding some of that “ train room peace “ in building and painting .
072
072
031 on the upper logging line with 072 and 080 on the main line.
O 54 on the lower outer mainline loop. 0 42 on the upper mountain loop.
072
O72
O27 gauge tinplate track here, BUT O42, O54 and O72 radius curves
o-72
O54 is largest but occassionally use O60
O72
Max 122 min 096 including industrial and yard trackage. If I have another layout those numbers will be larger. If I have to go smaller, I sell out.
Fastrack 036
Mainline O90 & O81, O72 elsewhere.
Jan
060 Fastrack
O-31 on my Christmas tree layout, O-36 on my basement layout.
O72 FasTrack
027
