| Year | 1935 |
| Date | 04-Jul |
| Volume | 73 |
| Issue | 1,782 |
| Page | 10 |
| Category | Locomotive |
| Part | |
| Title | Nominal Tractive Effort Formula |
| Author | Henry Greenly |
| Notes | The two cylinder locomotive showing crank position covered by the ordinary formula, showing how the crank effort diagram may be higher than the formaula provides, the 4-cylinfder light impulse scheme with very late full gear cut off |