From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Table of deflection, buffer clearance, and car height variations for Bentley, 30.HP, and Phantom III models.
| Identifier | ExFiles\Box 154a\4\ scan0006 | |
| Date | 20th November 1936 | |
| -2- Rm{William Robotham - Chief Engineer}/Les.18/AP.20.11.36. If the ideal poundage figures on the Erection Card were correct, the following would result from a ± 50 lbs. limit for spring selection. This gives a variation of 100 lbs. | | Bentley. | | 30.HP. | | Ph.III. | |---|---|---|---|---|---|---| | | Front | Rear | Front | Rear | Front | Rear | | Deflection due to 50 lbs. | .150" | .210" | .235" | .290" | .280" | .250" | | Present buffer clearance. | 1.600" | 2.600" | 2.250" | 4.000" | 2.150" | 3.550" | | Minimum buffer clearance. | 1.450" | 2.390" | 2.015" | 3.610" | 1.870" | 3.300" | | Variation in car height. Front to Rear. | .360" | | .525" | | .530" | | Rm{William Robotham - Chief Engineer}/Les.{Ivan A. Leslie} | ||