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).
Performance graphs for a rear damper system at various stroke lengths and pressures.
| Identifier | WestWitteringFiles\S\June1928-August1928\ Scan030 | |
| Date | 18th June 1928 | |
| 11" STROKE PRESS LBS REBOUND BUMP M.E.P. 635 LBS/[] HIGH PRESSURE SLOW RUNNING M.E.P. 535 LOW PRESSURE REBOUND 7" STROKE PRESS LBS M.E.P. 430 LBS/[] HIGH PRESS M.E.P. 355 LOW PRESS 3.7" STROKE M.E.P. 180 L.P. M.E.P. 250 H.P. S R REAR DAMPER WITH STAGGERED PASSAGE REAR DAMPERS. H.P. LOAD 60 LBS L.P. LOAD 55 LBS. AT 13.5" LEVER. DOTTED LINES DAMPER OPERATED VERY SLOWLY. ROLLS-ROYCE, LIMITED PRINT ROOM, 18 JUN 1928 DERBY. | ||