Dieses Schienen-Set ist für einen viertel Kreis. Der Radius (R88) ist 88 Noppen gross. Die normalen LEGO® Schienen sind R40. Aus Spritzguss.
Englische Beschreibung vom Hersteller:
Detailed explanation of R88 radius
The R88 is the radius measured from the center of the circle to the centerline between the rails using the LEGO® stud as the unit. LEGO® stud is 8mm. The space needed to have the full R88 circle can be calculated as follows: (88 4) * 2 * 8mm = 1472mm = 1.47m. This measures the diameter (2 * radius) of the outer shape of the track - that's why we added 4 studs in the formula.
In general, the formula for calculating the outer diameter of the track circle is:
(R 4) * 2 * 8mm