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).
Graphs showing the performance variation of a standard damper with temperature under high and low pressure.
| Identifier | WestWitteringFiles\S\June1928-August1928\ Scan042 | |
| Date | 28th June 1928 guessed | |
| STANDARD DAMPER. VARIATION WITH TEMP. FIG: I. LBS/D'' 600 400 200 PRICES C 15°C 20°C 60°C HIGH PRESSURE. 64/80 LB. LOADS 13" LEVER SLOW 200 CYCLES/MIN: 11" STROKE OF BALL. FIG: II LBS/D'' 600 400 200 LOW PRESSURE. 64/80 LB. LOADS 13" LEVER 200 CYCLES/MIN: 11" STROKE OF BALL. 20° C 60° C MOTORINE C NO APPRECIABLE DIFFERENCE. | ||