Freeware Engine specs for GWR locomotives
| KUID | Locomotive |
| 44090:52200 | GWR Dean Nr. 1 |
| 44090:52220 | GWR Armstrong 850 Class |
| 44090:52227 | GWR Collet 4073 Castle |
| 44090:52228 | GWR Collet 60xx King |
| 44090:52229 | GWR Collet 57xx |
| 44090:52230 | GWR Collet 64xx |
| 44090:52231 | GWR Collet 74xx |
| 44090:52232 | GWR Collet 54xx |
| 44090:52233 | GWR Hawksworth 16xx |
| 44090:52234 | GWR Hawksworth 15xx |
| 44090:52235 | GWR Collet 48xx |
| 44090:52236 | GWR Hawksworth 94xx |
| 44090:52237 | GWR Hawksworth 10xx County |
| 44090:52238 | GWR Churchward 43xx |
| 44090:52239 | GWR Churchward 28xx |
| 44090:52240 | GWR Churchward 47xx |
| 44090:52241 | GWR Churchward 45xx |
| 44090:52242 | GWR Churchward 44xx |