Love these, thanks for transfering them from TpF1.

However, I think the capacities probably need reviewing as some of them are far greater than the vanilla options.

The 7-plank especially, as it is better even than the final vanilla Gondola!
(Two 7-planks are the same length as the final Gondola, carry just as much, but weigh less...)



The vanilla wagons have an almost standard capacity-per-tonne (0.8), and only improve in capacity-per-m-length.
All but the 3-plank exceed this standard.

Presuming length is fixed, and integer values for capacities & weight, I'd suggest the following:

3-plank: No changes.
Whilst strictly better than the vanilla 1850 gondola (as it's 0.7m shorter) there's not much room for change here.

British 5-plank: Change capacity to 5. Change earliest available date to 1880 or later.
Capacity-per-m & capacity-per-t = 0.83.
Whilst still better than the vanilla 1850 wagon, this is in line with the 1900 wagon stats.

GWR 5-plank: Change capacity to 5. Change weight to 6.
Capacity rations same as above.
The GWR 5-plank (1904 "O3" design) was 5tons 19cwt[www.greatwestern.org.uk]. (20 cwt to a ton, so this is basically 6t).
This admitedly reduces variety as it makes it the exact same stats as the British 5-plank.

GWR 7-plank: Change capacity to 6. Change weight to 7.
Capacity-per-m = 1, capacity-per-ton = 0.86
The 1923 RCH design (which these became) had a tare of no more than 7 tons 5 cwt.
This does make it strictly better than the vanilla 1950 gondola. But not so much so it's way out of line with the vanilla values.
Change 8 to weight if you want a reason to use the 1950 vanilla wagons...