Engine Weight

I have three Z scale F7A
diesel locomotives - two
from Micro-Trains (MTL)
and one from Marklin.
There is a large
difference in weight
between the locomotives
from the two manufacturers.

The MTL Santa Fe engine weighs 62.6 grams and the
12 Days of Christmas locomotive weighs 62.5 grams. They travel around the MTL starter set oval of track (about 20 x 16 inches) very well.