Curve radius

The radius of a curve, measured to the track centre line. Track systems often number their standard curves R1, R2 and so on.

Dutch

bochtstraal

German

Radius

Example

Märklin C track: R1 360 mm (24130), R2 437.5 mm (24230), R3 515 mm (24330), R4 579.3 mm (24430) and R5 643.6 mm (24530).

Märklin C track: articles, geometry and the track planner

Articles using this term

• Märklin C Track curved turnouts: a passing loop in the curve
• The starter set oval does not fit on your table
• How much space do you need for a Fleischmann piccolo layout?
• The tightest curve radius in N and what it means for your baseboard
• Sectional track or flexible track: which should you choose?
• The helix: gaining height in little space
• How much space do you need for a Minitrix layout?
• Mixing Märklin and two-rail: why it does not work
• A TT layout on 140 x 70 cm: what fits?
• Minitrix or Fleischmann piccolo: the differences side by side
• Left, right and symmetrical turnouts explained
• How much space do you need for a Piko A-Gleis layout?
• Terminus or through station?
• Passing loop: how two trains pass each other
• Piko A-Gleis or Roco geoLine: the differences side by side
• An N layout on 100 x 50 cm: what fits?
• Your layout will not close: a gap of a few millimetres
• Shunting puzzle: designing a small yard
• Hidden staging and fiddle yards: trains out of sight
• Double oval: two trains at once
• How much space do you need for a Roco Line layout?
• Shuttle line: running back and forth without a loop
• Roco geoLine or Roco Line: the differences side by side
• The figure eight: crossing or bridge?
• An H0 layout on 240 x 120 cm: what fits?
• The oval: the simplest layout and how to expand it
• Locomotive stalls on the frog
• The Auto-designer: layouts from your own track
• H0, N, TT or Z: which scale fits your space?
• Give your old box of track a second life
• Eras I to VI: what do they mean?
• The dogbone: a long run on a narrow baseboard
• How much space do you need for a Märklin C track layout?
• Track spacing: how far apart do two tracks lie?
• Train derails at the turnout: causes and fixes
• The reversing loop: how it works and how to avoid a short circuit
• How to make a track plan in seven steps
• An H0 layout on 180 x 90 cm: what fits?
• Märklin C track or Märklin K track: the differences side by side

See also

• Minimum radius
• Transition curve
• Full circle
• Track centre line