| Year | 1995 |
| Date | 17-Feb |
| Volume | 174 |
| Issue | 3,987 |
| Page | 225 |
| Category | Locomotive |
| Part | |
| Title | The Effect of Lead on Tractive Effort |
| Author | D.A.Webster |
| Notes | Examines mathematically steam locomotive performance. Introduction, relationship between axle, valve and piston, instantaneous starting effort, mean tractive effort, conclusion |