Locomotive weights for a range of scales/gauges

        Scale to       Av. Weight      Av. Weight     Av. Speed         Radius of       Radius of 
Gauge   1 foot          Weight          of train       (mph)            curve (min)     curve (recc.)
1.25    7mm             7lbs            30lbs           2               4               6
1.75    10mm            20lbs           80lbs           3.5             5               10
2.5     17/32in         50lbs           2cwt            5               8               16
3.5     3/4in           100lbs          9cwt            7               14              30
5       1 1/16in        2.5cwt          18cwt           10              18              40
7.25    1.5in           6cwt            2.5tons         12              30              60
9.5     2in             10cwt           4tons           15              40              100
10.25   2.25in          17cwt           5tons           17              50              150

*from: Model Engineer's Handbook by Tubal Caine.

Incidentally, the train weight will be about 80 to 100 times the draw bar pull.
--
David Wood	d.wood@thermoteknix.co.uk postmaster@thermoteknix.co.uk

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