Rolling Stock Requirements
# The minimum weight of a car shall conform to NMRA standard weight. The NMRA formula is one ounce plus one-half ounce per inch of car length.
|
Car Length (inches) |
Car Length (Scale Feet) |
NMRA Weight (Ounces) |
|---|---|---|
| 3 7/16 | 25 | 2.75 |
| 4 1/8 | 30 | 3.12 |
| 5 1/2 | 40 | 3.75 |
| 6 7/8 | 50 | 4.38 |
| 8 1/4 | 60 | 5.12 |
| 9 5/8 | 70 | 5.75 |
| 11 | 80 | 6.3 |
Additional weight may be added, but too much weight could damage the trucks especially plastic trucks.
All equipment must be provided with Kadee compatible couplers. The exception is for “unit trains” e.g. coal trains, auto racks & roadrailers. In this case, each end car must have Kadee compatible couplers.