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The New Zealand Railways Magazine, Volume 1, Issue 5 (September 24, 1926)
Table of Piston Travel and Resultant Cylinder Pressure
Table of Piston Travel and Resultant Cylinder Pressure.
From 70 pounds auxiliary reservoir and train pipe pressure.
| Train Pipe Reduction. | 4in. | 5in. | 6in. | 7in. | 8in. | 9in. | 10in. | 11in. |
| 7 lbs. | 25 | 23 | 17 1/2 | 13 | 10 1/2 | 8 | Piston entirely | not out |
| 10 lbs | 49 | 43 | 34 | 29 | 23 1/2 | 19 1/2 | 17 | 14 |
| 13 lbs | 57 | 56 | 44 | 37 1/2 | 33 | 29 | 24 | 20 |
| 16 lbs | 54 | 47 1/2 | 35 | 29 | 24 | |||
| 19 lbs | 51 | 47 | 40 | 36 1/2 | 32 | |||
| 22 lbs | 50 | 47 1/2 | 44 | 39 | ||||
| 25 lbs | 47 | 45 |