Haulage ratings for steamers (roughly 300 metre run-up, 90 metre 1:20 rising grade)

Stormpeak -  10T
Wyvern    - 100T
Dragon    - 150T
Oread     -  50T
Meliad    -  50T
Dryad     -  50T
Naiad     -  50T
Pixie     -   5T