Simplex was the tradename for small motor locomotives from Motor Rail.
On the FR there was long an example called The Simplex or The Simplex Tractor, later named Mary Ann.
Other Simplexes with no particular name include:
- Motor Rail 2197 (used in the construction of the original WHR)
- No.9 (WHHR)
- Simplex 89
- Simplex 264 at the WHHR
- Simplex 3090
- Simplex 3098
- Simplex LR2832
- Simplex WDLR
For more Simplexes, see the category "Simplex" below.